667  
FNUS55 KBOU 182235  
FWFBOU  
 
FIRE WEATHER FORECAST FOR NORTHEAST AND NORTH CENTRAL COLORADO  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
335 PM MST SUN FEB 18 2018  
   
..RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON
 
 
   
DISCUSSION...TONIGHT AND MONDAY
 
MODERATE SOUTHWESTERLY FLOW  
ALOFT WILL CONTINUE THROUGH TONIGHT. WARM, DRY AND GUSTY  
CONDITIONS ON THE PALMER DIVIDE WILL EASE THROUGH THE EVENING AS  
TEMPERATURES COOL AND WINDS DIE DOWN. A COLD FRONT WILL MOVE OVER  
THE NORTHEAST PLAINS AFTER MIDNIGHT WITH COLDER TEMPERATURES AND  
SHALLOW MOISTURE. AREAS OF FOG AND POSSIBLY SOME FREEZING DRIZZLE  
MAY DEVELOP AROUND SUNRISE. MOISTURE ALOFT WILL INCREASE THROUGH  
MONDAY WITH INCREASING SNOW OVER THE MOUNTAINS. TEMPERATURES WILL  
BEE VERY COLD ON THE PLAINS MONDAY AS COLD AIR MOVES INTO THE  
REGION FROM THE NORTH.  
 
LONG TERM DISCUSSION...MONDAY NIGHT THROUGH FRIDAY...COLD  
TEMPERATURES AND SNOW WILL REMAIN IN THE FORECAST THROUGH MONDAY  
NIGHT, DECREASING TO AREAS OF LIGHT SNOW OR FLURRIES BY TUESDAY  
MORNING. THE COLD TEMPERATURES WILL LIMIT SMOKE DISPERSION THROUGH  
TUESDAY. SOME MODERATION CAN BE EXPECTED WEDNESDAY THROUGH  
FRIDAY. NO STRONG WINDS OR LOW HUMIDITIES ARE EXPECTED THROUGH  
THIS ENTIRE PERIOD.  
 
...THUNDERSTORMS IMPLY STRONG GUSTY ERRATIC WINDS...  
...ALL SURFACE WINDS ARE 20-FOOT...10-MINUTE AVERAGED WINDS...  
...CWR IS CHANCE OF WETTING RAIN - 0.10 INCH OR MORE LIQUID...  
...24 HR TRENDS ARE BASED ON AVERAGES OVER THE RESPECTIVE ZONE  
GROUPS AND MAY NOT MATCH THE ACTUAL FORECAST VALUES  
SHOWN IN THOSE GROUPS...  
 
COZ238-191230-  
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-  
INCLUDING FORT COLLINS, HEREFORD, LOVELAND, NUNN,  
AND WEST PAWNEE GRASSLANDS  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 2100, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 2200, THEN PARTLY  
CLOUDY(55-60%) UNTIL 2300, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW AFTER 2300 UNTIL 0200,  
THEN CHANCE OF SNOW.  
MIN TEMPERATURE.....9-15.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........90-100%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 11-21 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 2200, THEN EAST 10-15  
MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 1900, THEN POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW UNTIL 1100, THEN SNOW  
LIKELY.  
MAX TEMPERATURE.....16-22.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........69-79%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......EAST WINDS 11-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2000-2500 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....4 BELOW TO 2 ABOVE ZERO.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........97-99%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 9-15 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................60 PERCENT UNTIL 2300, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 45-55 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....11-15.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........65-75%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTHEAST WINDS 5-11 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 0 PERCENT.  
15K FT MSL WINDS....WEST 35-45 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1000, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 2 BELOW. SOUTH WINDS 5-7 MPH.    
WEDNESDAY
 
NOT AS COLD. PARTLY CLOUDY. HIGHS IN THE MID 20S.  
SOUTH WINDS 5-7 MPH.    
THURSDAY
 
NOT AS COLD. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 7. HIGHS IN THE LOWER 30S. SOUTH WINDS  
5-7 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 13. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS 5-8 MPH.  
 

 
 
COZ239-191230-  
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD  
COUNTY-  
INCLUDING ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0200, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0200.  
PATCHY LIGHT FREEZING DRIZZLE AFTER 0300. AREAS  
OF FREEZING FOG AFTER 0300.  
MIN TEMPERATURE.....17-23.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........84-94%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......WEST WINDS 12-18 MPH SHIFTING TO THE NORTH 9-15  
MPH AFTER MIDNIGHT. GUSTS UP TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 2000, THEN AROUND 15  
MPH UNTIL 2200, THEN SOUTH UNTIL 2300, THEN  
NORTHEAST.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2300.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF FREEZING FOG UNTIL  
0800. SLIGHT CHANCE OF SNOW AND PATCHY LIGHT  
FREEZING DRIZZLE UNTIL 0800, THEN CHANCE OF  
SNOW UNTIL 1100, THEN SNOW LIKELY.  
MAX TEMPERATURE.....22-29.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........55-65%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 11-17 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....2-6.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........100%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 5-11 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................60 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 10-15 MPH UNTIL 0400, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....13-17.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........71-79%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 4-7 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT.  
15K FT MSL WINDS....WEST 45-55 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
AROUND 3. SOUTHEAST WINDS 5-6 MPH.    
WEDNESDAY
 
NOT AS COLD. PARTLY CLOUDY. HIGHS IN THE UPPER 20S.  
NORTHWEST WINDS 5-6 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 11. HIGHS IN  
THE MID 30S. NORTHWEST WINDS 5-7 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE UPPER 30S.  
SOUTHWEST WINDS 5-7 MPH.  
 

 
 
COZ240-191230-  
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND  
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-  
INCLUDING AURORA, BRIGHTON, CITY OF DENVER,  
DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON,  
AND PARKER  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0200, THEN MOSTLY  
CLOUDY. AREAS OF FREEZING FOG AFTER 0300.  
PATCHY LIGHT FREEZING DRIZZLE AFTER 0300.  
MIN TEMPERATURE.....17-23.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........83-93%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 11-17 MPH SHIFTING TO THE  
NORTHEAST 9-15 MPH AFTER MIDNIGHT. GUSTS UP TO  
30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 40-50 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 0100, THEN NORTHEAST.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900, THEN POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF FREEZING FOG UNTIL  
0800. PATCHY LIGHT FREEZING DRIZZLE UNTIL 0800,  
THEN SLIGHT CHANCE OF SNOW UNTIL 1100, THEN  
CHANCE OF SNOW.  
MAX TEMPERATURE.....22-31.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........55-65%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 10-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY.  
MIN TEMPERATURE.....3-7.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........100%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 8-14 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................50 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....15-19.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........65-75%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 6-12 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
AROUND 3. EAST WINDS 5-7 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE UPPER 20S.  
SOUTHEAST WINDS 5-7 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 12. HIGHS IN  
THE UPPER 30S. NORTHWEST WINDS 5-7 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 18. HIGHS IN THE LOWER 40S.  
EAST WINDS 5-7 MPH.  
 

 
 
COZ241-191230-  
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-  
INCLUDING CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR  
335 PM MST SUN FEB 18 2018  
   
..RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON
 
 
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%). AREAS OF FREEZING FOG  
AFTER 0300. PATCHY LIGHT FREEZING DRIZZLE AFTER  
0300.  
MIN TEMPERATURE.....19-25.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........81-91%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 11-17 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 45-55 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH UNTIL 2200, THEN WEST 15-20  
MPH UNTIL 0400, THEN NORTHWEST AROUND 10 MPH.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1800. POOR AFTER 2200.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0600, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 0900, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1300, THEN MOSTLY  
CLOUDY(60-65%). AREAS OF FREEZING FOG UNTIL  
0800. PATCHY LIGHT FREEZING DRIZZLE UNTIL 0800.  
SLIGHT CHANCE OF SNOW AFTER 0800 UNTIL 1100,  
THEN CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN.  
MAX TEMPERATURE.....33-43.  
24 HR TREND......20-25 DEGREES COOLER.  
MIN HUMIDITY........41-51%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHEAST WINDS 10-16 MPH WITH GUSTS TO  
30 MPH SHIFTING TO THE SOUTHEAST 17-27 MPH WITH  
GUSTS TO 40 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 0700, THEN  
SOUTHEAST UNTIL 1000, THEN SOUTH 20-25 MPH  
UNTIL 1200, THEN 30-35 MPH UNTIL 1500, THEN  
SOUTHWEST AROUND 40 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. EXCELLENT AFTER 1400.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW.  
MIN TEMPERATURE.....4-8.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........97-99%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTH WINDS 9-15 MPH. GUSTS UP TO 30 MPH IN THE  
EVENING.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 40 MPH UNTIL 1800, THEN 25-30  
MPH UNTIL 2000, THEN WEST AROUND 15 MPH UNTIL  
2200, THEN NORTH UNTIL 0400, THEN LIGHT.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1800. POOR AFTER 1900.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1100. CHANCE OF SNOW SHOWERS AFTER 1100.  
MAX TEMPERATURE.....16-22.  
24 HR TREND......20-25 DEGREES COOLER.  
MIN HUMIDITY........58-68%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 6-12 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......6000-7000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0900, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1300, THEN SOUTHEAST.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN FAIR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
AROUND 1. SOUTHEAST WINDS 5-9 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. HIGHS IN THE UPPER 20S. SOUTH WINDS  
8-14 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 10. HIGHS IN  
THE UPPER 30S. SOUTH WINDS 5-9 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE LOWER 40S.  
SOUTH WINDS 5-9 MPH.  
 

 
 
COZ242-191230-  
NORTHEAST WELD COUNTY-  
INCLUDING BRIGGSDALE, EAST PAWNEE GRASSLANDS, GROVER,  
PAWNEE BUTTES, RAYMER, AND STONEHAM  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1900, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0200.  
MIN TEMPERATURE.....9-13.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........87-95%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 12-18 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 45-55 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1900, THEN NORTHEAST 15-20  
MPH.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900, THEN POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0800, THEN  
CHANCE OF SNOW.  
MAX TEMPERATURE.....17-21.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........60-70%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......EAST WINDS 13-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2000-2500 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....3 BELOW TO 1 ABOVE ZERO.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........89-99%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 12-18 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................60 PERCENT UNTIL 2300, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1100.  
MAX TEMPERATURE.....13-17.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........50-60%.  
24 HR TREND......10-15% DRIER.  
20-FOOT WINDS.......NORTH WINDS 7-13 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 50-60 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 1200, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 1 BELOW. SOUTHEAST  
WINDS 5-13 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE UPPER 20S.  
SOUTH WINDS 7-13 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 8. HIGHS IN THE MID 30S. SOUTHEAST WINDS  
5-9 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 15. HIGHS IN THE UPPER 30S. SOUTH WINDS 5-13 MPH.  
 

 
 
COZ243-191230-  
CENTRAL AND SOUTH WELD COUNTY-  
INCLUDING EATON, FORT LUPTON, GREELEY, AND ROGGEN  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 2400, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0200.  
PATCHY LIGHT FREEZING DRIZZLE AFTER 0300. AREAS  
OF FREEZING FOG AFTER 0300.  
MIN TEMPERATURE.....13-17.  
24 HR TREND......7-10 DEGREES COOLER.  
MAX HUMIDITY........86-94%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 9-15 MPH SHIFTING TO THE  
NORTHEAST 12-20 MPH AFTER MIDNIGHT. GUSTS UP TO  
30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 45-55 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 2000, THEN NORTHWEST  
AROUND 15 MPH UNTIL 2200, THEN EAST.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1800. POOR AFTER 2000.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW AND PATCHY LIGHT  
FREEZING DRIZZLE UNTIL 0800, THEN CHANCE OF  
SNOW.  
MAX TEMPERATURE.....19-23.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........65-75%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......EAST WINDS 12-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2000-2500 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....ZERO TO 4 ABOVE ZERO.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........95-99%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 10-16 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................60 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2500-3000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 15-20 MPH UNTIL 0300, THEN AROUND 10  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1100.  
MAX TEMPERATURE.....14-18.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........60-70%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTHEAST WINDS 5-11 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 50-60 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1000, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 2 BELOW. SOUTHEAST WINDS 5-7 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE UPPER 20S.  
SOUTHEAST WINDS 5-8 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 8. HIGHS IN  
THE MID 30S. NORTH WINDS 5-7 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE UPPER 30S.  
SOUTH WINDS 5-7 MPH.  
 

 
 
COZ244-191230-  
MORGAN COUNTY-  
INCLUDING BRUSH, FORT MORGAN, GOODRICH, AND WIGGINS  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 2300, THEN MOSTLY  
CLOUDY.  
MIN TEMPERATURE.....12-16.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........90-98%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 10-16 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1900, THEN EAST.  
SMOKE DISPERSAL.....GOOD UNTIL 1900, THEN POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0800  
UNTIL 1100, THEN CHANCE OF SNOW.  
MAX TEMPERATURE.....21-25.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........62-72%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......EAST WINDS 12-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2500 FT AGL.  
TRANSPORT WINDS.....EAST 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY.  
MIN TEMPERATURE.....1-5.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........90-100%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTHEAST WINDS 12-18 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................50 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......2500-3000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 20-25 MPH UNTIL 2400, THEN 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1100.  
MAX TEMPERATURE.....15-19.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........51-61%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......NORTH WINDS 7-13 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH UNTIL 1200, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 1. EAST WINDS  
5-13 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS AROUND 30.  
SOUTHEAST WINDS 7-13 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 11. HIGHS IN THE UPPER 30S. SOUTHEAST WINDS  
5-9 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 17. HIGHS IN THE LOWER 40S. SOUTHEAST WINDS 5-9 MPH.  
 

 
 
COZ245-191230-  
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-  
INCLUDING BENNETT, BYERS, DEER TRAIL, AND LEADER  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0200, THEN MOSTLY  
CLOUDY. PATCHY LIGHT FREEZING DRIZZLE AFTER  
0300.  
MIN TEMPERATURE.....15-19.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........96-99%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......WEST WINDS 7-13 MPH SHIFTING TO THE NORTHEAST  
9-15 MPH AFTER MIDNIGHT. GUSTS UP TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 2200, THEN NORTH UNTIL  
2300, THEN EAST.  
SMOKE DISPERSAL.....GOOD UNTIL 1900, THEN POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY LIGHT FREEZING DRIZZLE  
UNTIL 0800, THEN SLIGHT CHANCE OF SNOW.  
MAX TEMPERATURE.....24-32.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........61-71%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......EAST WINDS 12-22 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 15-20 MPH UNTIL 1400, THEN AROUND 25  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY.  
MIN TEMPERATURE.....2-6.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........100%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTHEAST WINDS 11-17 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....EAST 20-25 MPH UNTIL 2000. NORTHEAST AROUND 10  
MPH AFTER 0200.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1100.  
MAX TEMPERATURE.....17-21.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........63-71%.  
24 HR TREND......2-4% DRIER.  
20-FOOT WINDS.......NORTHEAST WINDS 7-13 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 0900, THEN LIGHT  
UNTIL 1500, THEN EAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 1. EAST WINDS 5-13 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE LOWER 30S.  
SOUTHEAST WINDS 7-13 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 11. HIGHS  
AROUND 40. SOUTH WINDS 5-9 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE LOWER 40S.  
SOUTHEAST WINDS 5-13 MPH.  
 

 
 
COZ248-191230-  
LOGAN COUNTY-  
INCLUDING CROOK, MERINO, STERLING, AND PEETZ  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER  
0200.  
MIN TEMPERATURE.....10-14.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........89-97%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 12-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 40-50 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1900, THEN NORTHEAST  
20-25 MPH UNTIL 2300, THEN AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1100, THEN  
CHANCE OF SNOW.  
MAX TEMPERATURE.....18-24.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........61-69%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 11-17 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2500-3000 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY.  
MIN TEMPERATURE.....1 BELOW TO 3 ABOVE ZERO.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........85-95%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTH WINDS 12-18 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................50 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MAX TEMPERATURE.....15-19.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........51-59%.  
24 HR TREND......10-15% DRIER.  
20-FOOT WINDS.......NORTH WINDS 8-14 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 1500, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 1. EAST WINDS  
5-13 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS AROUND 30. SOUTH  
WINDS 8-14 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
LOWS AROUND 9. HIGHS IN THE UPPER 30S. SOUTHEAST WINDS 7-13 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 16. HIGHS AROUND 40. SOUTH WINDS 6-12 MPH.  
 

 
 
COZ249-191230-  
WASHINGTON COUNTY-  
INCLUDING AKRON, COPE, LAST CHANCE, AND OTIS  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 2400, THEN MOSTLY  
CLOUDY.  
MIN TEMPERATURE.....13-17.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........88-98%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 11-17 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 2200, THEN NORTHEAST.  
SMOKE DISPERSAL.....FAIR UNTIL 2000, THEN POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER  
0800.  
MAX TEMPERATURE.....23-29.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........62-68%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......EAST WINDS 12-22 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......2000-2500 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 1400, THEN AROUND 20  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW UNTIL 2000, THEN SNOW  
LIKELY.  
MIN TEMPERATURE.....1-5.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........94-98%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 12-20 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 20-25 MPH UNTIL 2400, THEN AROUND 15  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MAX TEMPERATURE.....15-19.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........59-69%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......NORTH WINDS 8-14 MPH. GUSTS UP TO 20 MPH IN THE  
MORNING.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 1300, THEN LIGHT UNTIL  
1600, THEN NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 3. EAST WINDS  
5-13 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE LOWER 30S.  
SOUTHEAST WINDS 8-14 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 10. HIGHS IN THE UPPER 30S. SOUTHEAST WINDS  
8-14 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 18.  
HIGHS IN THE LOWER 40S. SOUTHEAST WINDS 7-13 MPH.  
 

 
 
COZ250-191230-  
SEDGWICK COUNTY-  
INCLUDING JULESBURG, OVID, AND SEDGWICK  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0200.  
MIN TEMPERATURE.....11-15.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........87-97%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 13-23 MPH WITH GUSTS TO 35 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH UNTIL 1900, THEN NORTHEAST 20-25  
MPH UNTIL 0200, THEN AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1100, THEN  
CHANCE OF SNOW.  
MAX TEMPERATURE.....19-23.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........57-61%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 10-16 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......2500-3000 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH UNTIL 1100, THEN LIGHT UNTIL  
1200, THEN EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2300, THEN CHANCE OF  
SNOW.  
MIN TEMPERATURE.....1 BELOW TO 3 ABOVE ZERO.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........80-88%.  
24 HR TREND......7-10% DRIER.  
20-FOOT WINDS.......NORTH WINDS 12-18 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................40 PERCENT UNTIL 2300, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1300, THEN PARTLY  
CLOUDY(50-60%).  
MAX TEMPERATURE.....14-18.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........51-55%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......NORTH WINDS 10-16 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS NEAR ZERO. EAST WINDS  
5-13 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS AROUND 30. SOUTH  
WINDS 7-13 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
LOWS AROUND 9. HIGHS IN THE MID 30S. SOUTHEAST WINDS 8-13 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 17. HIGHS IN THE UPPER 30S. SOUTHEAST WINDS 6-10 MPH.  
 

 
 
COZ251-191230-  
PHILLIPS COUNTY-  
INCLUDING AMHERST, HAXTUN, AND HOLYOKE  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(55-60%) UNTIL 1900, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0200.  
MIN TEMPERATURE.....13-17.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........84-94%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 13-22 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1800, THEN SOUTHEAST AROUND  
15 MPH UNTIL 1900, THEN NORTHEAST 20-25 MPH  
UNTIL 0100, THEN AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1100, THEN  
CHANCE OF SNOW.  
MAX TEMPERATURE.....21-25.  
24 HR TREND......35-50 DEGREES COOLER.  
MIN HUMIDITY........57-63%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 10-16 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......2500-3000 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2300, THEN CHANCE OF  
SNOW.  
MIN TEMPERATURE.....ZERO TO 4 ABOVE ZERO.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........80-88%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......NORTH WINDS 12-18 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................40 PERCENT UNTIL 2300, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1100, THEN PARTLY  
CLOUDY(50-60%).  
MAX TEMPERATURE.....15-19.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........50-56%.  
24 HR TREND......7-10% DRIER.  
20-FOOT WINDS.......NORTH WINDS 10-16 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 1. EAST WINDS  
5-13 MPH.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS AROUND 30.  
SOUTHEAST WINDS 7-13 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
LOWS AROUND 9. HIGHS IN THE MID 30S. SOUTHEAST WINDS 8-13 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 18. HIGHS AROUND 40. SOUTHEAST WINDS 5-13 MPH.  
 

 
 
COZ246-191230-  
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN  
COUNTY-  
INCLUDING AGATE, HUGO, LIMON, AND MATHESON  
335 PM MST SUN FEB 18 2018  
   
..RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON
 
 
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0400, THEN MOSTLY  
CLOUDY(60-65%).  
MIN TEMPERATURE.....17-21.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........88-98%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 8-14 MPH SHIFTING TO THE NORTH  
7-13 MPH AFTER MIDNIGHT. GUSTS UP TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 40-50 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL UNTIL 0100, THEN BELOW 1000 FT  
AGL UNTIL 0400, THEN 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH UNTIL 2100, THEN SOUTH  
15-20 MPH UNTIL 0400, THEN EAST.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1800. POOR AFTER 2000.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER  
1100.  
MAX TEMPERATURE.....31-41.  
24 HR TREND......25-35 DEGREES COOLER.  
MIN HUMIDITY........45-55%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 11-17 MPH WITH GUSTS TO 25 MPH  
SHIFTING TO THE SOUTHEAST 15-24 MPH WITH GUSTS  
TO 35 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 15-20 MPH UNTIL 1300, THEN AROUND 25  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW.  
MIN TEMPERATURE.....4-8.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........90-100%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......EAST WINDS 13-20 MPH WITH GUSTS TO 30 MPH  
SHIFTING TO THE NORTH 11-17 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 20-25 MPH UNTIL 2200, THEN NORTHEAST  
10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1300, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1600, THEN MOSTLY  
CLOUDY(60-65%).  
MAX TEMPERATURE.....18-22.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........56-66%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......NORTH WINDS 9-15 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH UNTIL 0900, THEN LIGHT  
UNTIL 1300, THEN EAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 2. EAST WINDS  
5-9 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. HIGHS AROUND 30. SOUTH WINDS 9-15 MPH.   
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 9. HIGHS IN  
THE LOWER 40S. SOUTHEAST WINDS 8-14 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE LOWER 40S.  
SOUTHEAST WINDS 7-13 MPH.  
 

 
 
COZ247-191230-  
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-  
INCLUDING FORDER, KARVAL, KUTCH, AND PUNKIN CENTER  
335 PM MST SUN FEB 18 2018  
   
..RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON
 
 
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....21-31.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........72-82%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 9-15 MPH. GUSTS UP TO 25 MPH IN  
THE EVENING.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 40-50 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL UNTIL 0100, THEN BELOW 1000 FT  
AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH UNTIL 2200, THEN 15-20 MPH.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1800. POOR AFTER 2000.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....41-51.  
24 HR TREND......20-25 DEGREES COOLER.  
MIN HUMIDITY........29-39%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 10-16 MPH SHIFTING TO THE  
SOUTHEAST 15-24 MPH IN THE AFTERNOON. GUSTS UP  
TO 35 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 1000-2000 FT  
AGL.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 0700, THEN SOUTHEAST.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL  
2000, THEN CHANCE OF SNOW UNTIL 2300, THEN  
SLIGHT CHANCE OF SNOW.  
MIN TEMPERATURE.....8-14.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........78-88%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......EAST WINDS 13-20 MPH SHIFTING TO THE NORTH  
12-18 MPH AFTER MIDNIGHT. GUSTS UP TO 30 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......1000-2000 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0800, THEN PARTLY  
CLOUDY(40-50%).  
MAX TEMPERATURE.....22-28.  
24 HR TREND......20-25 DEGREES COOLER.  
MIN HUMIDITY........37-47%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 9-15 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 6. EAST WINDS  
6-12 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER 30S. SOUTHEAST  
WINDS 9-15 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 11. HIGHS IN  
THE MID 40S. SOUTHEAST WINDS 7-13 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 18. HIGHS IN THE UPPER 40S.  
SOUTHEAST WINDS 7-13 MPH.  
 

 
 
COZ215-191230-  
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-  
INCLUDING ESTES PARK, GLENDEVEY, LARAMIE RIVER VALLEY, NEDERLAND,  
AND RED FEATHER LAKES  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0100, THEN MOSTLY  
CLOUDY. CHANCE OF SNOW AFTER 2300.  
MIN TEMPERATURE.....12-22.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........79-89%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 12-18 MPH WITH GUSTS TO 40  
MPH SHIFTING TO THE NORTHWEST 8-14 MPH  
WITH GUSTS TO 25 MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 14-24 MPH WITH GUSTS TO 45  
MPH DECREASING TO 8-14 MPH WITH GUSTS TO  
30 MPH AFTER MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 35-40 MPH UNTIL 2000. SOUTH 15-20 MPH  
AFTER 2400.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. POOR AFTER 2200.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 1100. SNOW  
LIKELY AFTER 1100. AREAS OF BLOWING SNOW AFTER  
1100 UNTIL 1400.  
MAX TEMPERATURE.....18-28.  
24 HR TREND......25-35 DEGREES COOLER.  
MIN HUMIDITY........57-67%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHEAST WINDS 11-17 MPH WITH GUSTS TO 35  
MPH.  
RIDGES/UPR SLOPES....SOUTH WINDS 11-17 MPH WITH GUSTS TO 35  
MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT UNTIL 1100, THEN 50 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......5500-6500 FT AGL.  
TRANSPORT WINDS.....SOUTH 15-20 MPH UNTIL 0800, THEN 25-30 MPH  
UNTIL 1600, THEN AROUND 20 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1100, THEN VERY GOOD UNTIL 1600,  
THEN FAIR.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....5 BELOW TO 3 ABOVE ZERO.  
24 HR TREND......20-25 DEGREES COOLER.  
MAX HUMIDITY........97-99%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...EAST WINDS 5-9 MPH.  
RIDGES/UPR SLOPES....SOUTHEAST WINDS 5-9 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................70 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 40-50 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 1900, THEN AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....11-15.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........56-66%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH WINDS 4-7 MPH SHIFTING TO THE SOUTH  
4-8 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....WEST WINDS 4-8 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....WEST 35-45 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 2 BELOW. SOUTHWEST WINDS 5-7 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 20S. SOUTHWEST  
WINDS 5-8 MPH.    
THURSDAY
 
NOT AS COLD. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 6. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS  
5-8 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 12. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS 5-9 MPH.  
 

 
 
COZ216-191230-  
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR  
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-  
INCLUDING BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN,  
IDAHO SPRINGS, NORTHERN RAMPART RANGE, TARRYALL, AND WESTCREEK  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%). AREAS OF FREEZING FOG  
AFTER 0300. PATCHY LIGHT FREEZING DRIZZLE AFTER  
0300.  
MIN TEMPERATURE.....20-26.  
24 HR TREND......7-10 DEGREES COOLER.  
MAX HUMIDITY........69-79%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 9-15 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-17 MPH. GUSTS UP TO 35  
MPH DECREASING TO 25 MPH AFTER MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....WEST 30-35 MPH UNTIL 2200, THEN 20-25 MPH.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. POOR AFTER 2400.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0700, THEN MOSTLY  
CLOUDY(60-65%). AREAS OF FREEZING FOG UNTIL  
0800. SLIGHT CHANCE OF SNOW AND PATCHY LIGHT  
FREEZING DRIZZLE UNTIL 1100, THEN CHANCE OF  
RAIN AND SNOW.  
MAX TEMPERATURE.....30-40.  
24 HR TREND......20-25 DEGREES COOLER.  
MIN HUMIDITY........38-48%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTH WINDS 11-17 MPH WITH GUSTS TO 35  
MPH.  
RIDGES/UPR SLOPES....BREEZY. SOUTHWEST WINDS 9-15 MPH  
INCREASING TO 15-25 MPH IN THE AFTERNOON.  
GUSTS UP TO 35 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 1000. 35-40 MPH AFTER  
1400.  
SMOKE DISPERSAL.....FAIR UNTIL 1000, THEN VERY GOOD UNTIL 1200,  
THEN EXCELLENT.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2300, THEN CHANCE OF  
SNOW.  
MIN TEMPERATURE.....2-8.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........87-97%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5-9 MPH.  
RIDGES/UPR SLOPES....SOUTHEAST WINDS 5-9 MPH WITH GUSTS TO 25  
MPH SHIFTING TO THE SOUTHWEST 4-8 MPH  
AFTER MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................50 PERCENT UNTIL 2300, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....SOUTH 25-30 MPH UNTIL 1900, THEN SOUTHEAST  
15-20 MPH UNTIL 2200, THEN NORTHWEST 10-15 MPH  
UNTIL 0100, THEN SOUTHWEST.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1800. POOR AFTER 2000.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....13-21.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........49-59%.  
24 HR TREND......7-10% DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
EAST 4-8 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 4-8 MPH SHIFTING TO THE  
SOUTH 4-12 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 45-55 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1600, THEN POOR.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS NEAR  
ZERO. SOUTH WINDS 5-7 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS IN THE MID 20S. SOUTHWEST WINDS  
5-7 MPH.    
THURSDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 9. HIGHS IN  
THE MID 30S. SOUTHWEST WINDS 5-7 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 15. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS 5-8 MPH.  
 

 
 
COZ211-191230-  
JACKSON COUNTY BELOW 9000 FEET-  
INCLUDING GOULD, NORTH PARK, RAND, SPICER, AND WALDEN  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 2000  
UNTIL 2300, THEN CHANCE OF SNOW UNTIL 0200,  
THEN SNOW LIKELY.  
MIN TEMPERATURE.....19-23.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........82-92%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 12-22 MPH. GUSTS UP TO 40 MPH  
DECREASING TO 30 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 45 MPH UNTIL 1800. 20-25 MPH  
AFTER 2000.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1800. POOR AFTER 2000.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY. AREAS OF BLOWING  
SNOW AFTER 0800 UNTIL 1400.  
MAX TEMPERATURE.....27-31.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........61-69%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 15-25 MPH WITH GUSTS TO  
45 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................40 PERCENT UNTIL 1100, THEN 60 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......5500-6500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 30-35 MPH UNTIL 1000. AROUND 30 MPH  
AFTER 1500.  
SMOKE DISPERSAL.....GOOD UNTIL 1000, THEN VERY GOOD.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....2 BELOW TO 4 ABOVE ZERO.  
24 HR TREND......20-25 DEGREES COOLER.  
MAX HUMIDITY........94-98%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......WEST WINDS 5-11 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................70 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH.  
SMOKE DISPERSAL.....GOOD.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....12-16.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........53-63%.  
24 HR TREND......7-10% DRIER.  
20-FOOT WINDS.......WEST WINDS 5-11 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 0800, THEN WEST  
AROUND 15 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN VERY GOOD UNTIL 1600,  
THEN GOOD.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 6 BELOW. SOUTHWEST WINDS 5-8 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS AROUND 19. SOUTHWEST WINDS  
6-12 MPH.    
THURSDAY
 
NOT AS COLD. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 2. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS  
5-9 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 10. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS 6-12 MPH.  
 

 
 
COZ213-191230-  
GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-  
INCLUDING DILLON, FRASER, GRANBY, GRAND LAKE,  
GREEN MOUNTAIN RESERVOIR, HOT SULPHUR SPRINGS, KREMMLING,  
MIDDLE PARK, AND WILLIAMS FORK RESERVOIR  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1800, THEN PARTLY  
CLOUDY(40-50%) UNTIL 2300, THEN MOSTLY CLOUDY.  
CHANCE OF SNOW AFTER 2300.  
MIN TEMPERATURE.....19-25.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........74-84%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 12-22 MPH WITH GUSTS TO 35 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 35-40 MPH UNTIL 1900. 20-25 MPH AFTER  
0100.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900, THEN FAIR.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 1100. SNOW  
LIKELY AFTER 1100. AREAS OF BLOWING SNOW AFTER  
1100 UNTIL 1400.  
MAX TEMPERATURE.....29-37.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........48-58%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 14-24 MPH WITH GUSTS TO  
40 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT UNTIL 1100, THEN 50 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......5500-6500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH UNTIL 0800, THEN 35-40 MPH  
UNTIL 1000, THEN AROUND 45 MPH UNTIL 1100, THEN  
50-60 MPH UNTIL 1400, THEN AROUND 45 MPH UNTIL  
1500, THEN AROUND 35 MPH UNTIL 1600, THEN  
AROUND 25 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN VERY GOOD UNTIL 1000,  
THEN EXCELLENT UNTIL 1600, THEN GOOD.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....3-11.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........79-89%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHWEST WINDS 6-12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................70 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 45-55 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 0100, THEN 20-25 MPH.  
SMOKE DISPERSAL.....FAIR.  
   
TUESDAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....13-21.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........53-63%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......WEST WINDS 6-12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 30-40 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1000, THEN VERY GOOD UNTIL 1600,  
THEN GOOD.  
   
TUESDAY NIGHT
 
COLDER. MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 3 BELOW. SOUTHWEST WINDS 5-8 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 20S. SOUTHWEST  
WINDS 5-8 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 2. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS 5-7 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 11. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS 5-7 MPH.  
 

 
 
COZ214-191230-  
CENTRAL AND SOUTHEAST PARK COUNTY-  
INCLUDING ELEVEN MILE CANYON RESERVOIR, FAIRPLAY, GUFFEY,  
HARTSEL, LAKE GEORGE, AND SOUTH PARK  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....18-26.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........70-80%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 8-14 MPH. GUSTS UP TO 30  
MPH IN THE EVENING.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-21 MPH. GUSTS UP TO 35  
MPH DECREASING TO 25 MPH AFTER MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST 40-50 MPH UNTIL 1900. SOUTHWEST 25-30 MPH  
AFTER 2100.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1800. POOR AFTER 2000.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0800 UNTIL  
1100, THEN CHANCE OF RAIN UNTIL 1400. CHANCE OF  
SNOW AFTER 1100.  
MAX TEMPERATURE.....32-40.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........36-46%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 11-17 MPH WITH  
GUSTS TO 30 MPH INCREASING TO 17-27 MPH  
WITH GUSTS TO 45 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....BREEZY. SOUTHWEST WINDS 17-27 MPH WITH  
GUSTS TO 45 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 1100, THEN 20 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 30-35 MPH UNTIL 1000, THEN 45-55 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 0900, THEN VERY GOOD UNTIL 1000,  
THEN EXCELLENT.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 2000, THEN  
SNOW LIKELY UNTIL 2300, THEN CHANCE OF SNOW.  
MIN TEMPERATURE.....5-11.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........70-80%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10-16 MPH WITH GUSTS TO 30  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 13-20 MPH WITH GUSTS TO 35  
MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT UNTIL 2300, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......5000-6000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 40-50 MPH UNTIL 2000. AROUND 30 MPH  
AFTER 0200.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1900, THEN VERY GOOD UNTIL  
2200, THEN EXCELLENT UNTIL 0200, THEN VERY  
GOOD.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....14-22.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........38-48%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 9-15 MPH WITH GUSTS TO 25  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-17 MPH WITH GUSTS TO 30  
MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 40-50 MPH.  
MIXING HEIGHT.......7500-8500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH UNTIL 1400, THEN 15-20 MPH.  
SMOKE DISPERSAL.....VERY GOOD.  
   
TUESDAY NIGHT
 
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 3 BELOW. SOUTHWEST WINDS 6-12 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 20S. SOUTHWEST  
WINDS 6-12 MPH.    
THURSDAY
 
NOT AS COLD. PARTLY CLOUDY. LOWS AROUND 6. HIGHS IN  
THE LOWER 30S. SOUTHWEST WINDS 6-12 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 11. HIGHS IN THE LOWER 30S.  
SOUTHWEST WINDS 6-12 MPH.  
 

 
 
COZ218-191230-  
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/  
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-  
INCLUDING CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS,  
RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK,  
AND WILLOW CREEK PASS  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0100, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 2000 UNTIL  
2300. SNOW LIKELY AFTER 2300. AREAS OF BLOWING  
SNOW AFTER 2300 UNTIL 0100. AREAS OF BLOWING  
SNOW AFTER 0400.  
MIN TEMPERATURE.....13-21.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........76-86%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 16-26 MPH. GUSTS  
UP TO 50 MPH DECREASING TO 35 MPH AFTER  
MIDNIGHT.  
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 23-33 MPH. GUSTS UP  
TO 60 MPH DECREASING TO 50 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 30 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 45-55 MPH UNTIL 2300. 30-35 MPH AFTER  
0200.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. FAIR AFTER 2400.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF BLOWING SNOW. SNOW  
LIKELY UNTIL 1100. SNOW AFTER 1100.  
MAX TEMPERATURE.....19-29.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........57-67%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 17-27 MPH WITH  
GUSTS TO 45 MPH.  
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 24-34 MPH WITH  
GUSTS TO 60 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................40 PERCENT UNTIL 1100, THEN 60 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 65-75 MPH.  
MIXING HEIGHT.......5500-6500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 40-50 MPH UNTIL 1100, THEN AROUND 55  
MPH UNTIL 1500, THEN AROUND 45 MPH UNTIL 1600,  
THEN AROUND 35 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN VERY GOOD UNTIL 1100,  
THEN EXCELLENT UNTIL 1600, THEN VERY GOOD.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....5 BELOW TO 5 ABOVE ZERO.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........87-97%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7-13 MPH. GUSTS UP TO 20  
MPH IN THE EVENING.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-17 MPH WITH GUSTS TO 25  
MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................80 PERCENT UNTIL 2300, THEN 50 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH UNTIL 1900, THEN 15-20 MPH  
UNTIL 0100, THEN 25-30 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 0200, THEN GOOD.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....5-13.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........58-68%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 7-13 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 10-16 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT UNTIL 1100, THEN 20 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1200, THEN 15-20 MPH.  
SMOKE DISPERSAL.....GOOD.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
AROUND 5 BELOW. SOUTHWEST WINDS 6-12 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS AROUND 14. SOUTHWEST WINDS  
8-14 MPH.    
THURSDAY
 
NOT AS COLD. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
LOWS AROUND 3. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS 7-13 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 9.  
HIGHS IN THE LOWER 20S. SOUTHWEST WINDS 8-14 MPH.  
 

 
 
COZ212-191230-  
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/  
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE  
9000 FEET-  
INCLUDING BERTHOUD PASS, BRECKENRIDGE,  
EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE,  
EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS,  
PUMA HILLS, TARRYALL MOUNTAINS, WILLIAMS FORK MOUNTAINS,  
AND WINTER PARK  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%). CHANCE OF SNOW AFTER  
2300.  
MIN TEMPERATURE.....14-22.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........69-79%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 15-25 MPH WITH  
GUSTS TO 45 MPH.  
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 23-33 MPH. GUSTS UP  
TO 60 MPH DECREASING TO 45 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 45-55 MPH UNTIL 2000, THEN AROUND 40  
MPH.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2000, THEN GOOD.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(55-60%) UNTIL 0600, THEN MOSTLY  
CLOUDY(60-65%). CHANCE OF SNOW UNTIL 1100, THEN  
SNOW LIKELY. AREAS OF BLOWING SNOW AFTER 1100.  
MAX TEMPERATURE.....22-32.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........48-58%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 16-26 MPH WITH  
GUSTS TO 45 MPH.  
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 24-34 MPH. GUSTS UP  
TO 60 MPH DECREASING TO 50 MPH IN THE  
AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 50 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 40-50 MPH UNTIL 1100, THEN 50-60 MPH  
UNTIL 1500, THEN AROUND 45 MPH UNTIL 1600, THEN  
AROUND 35 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN EXCELLENT UNTIL 1600,  
THEN VERY GOOD.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SNOW UNTIL 2300, THEN SNOW  
LIKELY.  
MIN TEMPERATURE.....3 BELOW TO 7 ABOVE ZERO.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........81-91%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 9-15 MPH WITH GUSTS TO 25  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 13-23 MPH WITH GUSTS TO 30  
MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................70 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 50-60 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 2200, THEN AROUND 30  
MPH.  
SMOKE DISPERSAL.....GOOD.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....5-15.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........56-66%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 9-15 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-20 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT.  
15K FT MSL WINDS....WEST 35-45 MPH.  
MIXING HEIGHT.......7500-8500 FT AGL.  
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1300, THEN SOUTHWEST  
AROUND 20 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 1000, THEN VERY GOOD.  
   
TUESDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
AROUND 5 BELOW. SOUTHWEST WINDS 6-12 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS AROUND 16. SOUTHWEST WINDS  
6-12 MPH.    
THURSDAY
 
NOT AS COLD. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 4. HIGHS IN THE MID 20S. SOUTHWEST WINDS  
7-13 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 8.  
HIGHS IN THE MID 20S. SOUTHWEST WINDS 7-13 MPH.  
 

 
 
COZ217-191230-  
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-  
INCLUDING EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS,  
AND RABBIT EARS PASS  
335 PM MST SUN FEB 18 2018  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN UNTIL  
1800. SLIGHT CHANCE OF SNOW UNTIL 2300. SNOW  
LIKELY AFTER 2300. AREAS OF BLOWING SNOW AFTER  
2000.  
MIN TEMPERATURE.....18-24.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........74-84%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 15-25 MPH WITH  
GUSTS TO 40 MPH.  
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 21-31 MPH WITH  
GUSTS TO 50 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 2300, THEN 50 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 45-55 MPH UNTIL 2300, THEN 35-40 MPH.  
SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. GOOD AFTER 2200.  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF BLOWING SNOW UNTIL  
1400. SNOW LIKELY UNTIL 0800. SNOW AFTER 0800.  
MAX TEMPERATURE.....20-30.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........60-70%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 16-26 MPH WITH  
GUSTS TO 45 MPH.  
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 21-31 MPH WITH  
GUSTS TO 55 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................60 PERCENT UNTIL 1100, THEN 70 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 60-70 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 35-40 MPH UNTIL 0700, THEN 40-50 MPH  
UNTIL 1300, THEN AROUND 35 MPH.  
SMOKE DISPERSAL.....GOOD.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....3 BELOW TO 5 ABOVE ZERO.  
24 HR TREND......15-20 DEGREES COOLER.  
MAX HUMIDITY........88-98%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 7-13 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 10-16 MPH WITH GUSTS TO 25  
MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................70 PERCENT UNTIL 2300, THEN 50 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 55-65 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH.  
SMOKE DISPERSAL.....GOOD.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....5-15.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........60-70%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 6-12 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 8-14 MPH. GUSTS UP TO 20 MPH IN  
THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......7500-8500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 25-30 MPH UNTIL 0700, THEN WEST 15-20  
MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 0800, THEN POOR UNTIL 1300, THEN  
GOOD.  
   
TUESDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 5 BELOW. SOUTHWEST WINDS 5-9 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS AROUND 15. SOUTHWEST WINDS  
8-14 MPH.    
THURSDAY
 
NOT AS COLD. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 3. HIGHS IN THE MID 20S. SOUTHWEST WINDS  
7-13 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 10.  
HIGHS IN THE MID 20S. SOUTHWEST WINDS 7-13 MPH.  
 

 
   
OUTLOOK 6 TO 10 DAYS
 
 
TEMPERATURES BELOW NORMAL AND PRECIPITATION BELOW NORMAL.  
 

 
 
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