460  
FNUS55 KBOU 131129  
FWFBOU  
 
FIRE WEATHER FORECAST FOR NORTHEAST AND NORTH CENTRAL COLORADO  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
429 AM MST WED DEC 13 2017  
   
DISCUSSION...TODAY AND TONIGHT
 
AN UPPER LEVEL DISTURBANCE WILL  
MOVE ACROSS COLORADO TONIGHT WITH SNOW DEVELOPING IN THE MOUNTAINS  
EARLY THIS EVENING AND THEN OVER THE ADJACENT PLAINS AND PALMER  
DIVIDE TOWARDS MIDNIGHT. SNOW ACCUMULATIONS WILL BE ON THE LIGHTER  
SIDE WITH 2 TO 5 INCHES IN THE MOUNTAINS AND 1 TO 3 INCHES ON THE  
ADJACENT PLAINS AND PALMER DIVIDE. AHEAD OF THE STORM SYSTEM,  
TEMPERATURES WILL BE COOLER TODAY BUT CONTINUED BREEZY CONDITIONS  
ON THE PLAINS.  
 
LONG TERM DISCUSSION...THURSDAY THROUGH SUNDAY...LIGHT SNOW WILL  
DECREASE NORTH TO SOUTH ACROSS THE AREA WITH COLDER TEMPERATURES  
AND STRONG WINDS ACROSS THE EASTERN PLAINS. NORTHERLY WINDS OF 30  
TO 50 MPH ARE EXPECTED, PEAKING IN THE EARLY AFTERNOON, THOUGH  
HUMIDITY SHOULD BE GREATER THAN 35%. THIS WILL ALSO IMPROVE  
DISPERSION ACROSS THE AREA. FRIDAY WILL BE WARM AND DRY, WITH  
LOWER DISPERSION RATES, BEFORE THE NEXT SYSTEM PUSHES ACROSS THE  
AREA THIS WEEKEND. SNOW WILL SPREAD OVER THE MOUNTAINS BEGINNING  
SATURDAY, THEN PUSH OVER THE PLAINS SATURDAY EVENING INTO SUNDAY,  
WITH COLDER TEMPERATURES EXPECTED.  
 
...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...  
 
COZ238-140015-  
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-  
INCLUDING FORT COLLINS, HEREFORD, LOVELAND, NUNN,  
AND WEST PAWNEE GRASSLANDS  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0600, THEN PARTLY  
CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY(40-50%).  
MAX TEMPERATURE.....50-54.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........18-24%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTH WINDS 11-17 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......5000-6000 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW  
UNTIL 2300, THEN CHANCE OF SNOW.  
MIN TEMPERATURE.....22-26.  
24 HR TREND......7-10 DEGREES COOLER.  
MAX HUMIDITY........83-93%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 9-15 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTHWEST 20-30 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 2300, THEN 20-25 MPH.  
SMOKE DISPERSAL.....FAIR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0800, THEN PARTLY  
CLOUDY(40-50%).  
MAX TEMPERATURE.....36-42.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........37-43%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 8-14 MPH INCREASING TO  
NORTH 17-27 MPH IN THE AFTERNOON. GUSTS UP TO  
40 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 40-50 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH UNTIL 0900, THEN 30-35 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 0900, THEN VERY GOOD UNTIL 1100,  
THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 20. NORTHWEST WINDS  
6-12 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY. HIGHS IN THE MID 50S. WEST  
WINDS 7-13 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN  
THE UPPER 20S. HIGHS IN THE MID 40S. NORTHWEST WINDS 7-13 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 19. HIGHS IN THE LOWER 40S. NORTHWEST WINDS 6-12 MPH.  
 

 
 
COZ239-140015-  
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD  
COUNTY-  
INCLUDING ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200, THEN MOSTLY  
SUNNY UNTIL 1300, THEN PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....51-55.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........16-20%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH SHIFTING TO THE EAST  
4-7 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 0700, THEN LIGHT  
UNTIL 1400, THEN WEST AROUND 10 MPH UNTIL 1500,  
THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW AND SLIGHT CHANCE  
OF RAIN UNTIL 2300, THEN SNOW LIKELY.  
MIN TEMPERATURE.....23-27.  
24 HR TREND......7-10 DEGREES COOLER.  
MAX HUMIDITY........91-100%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 4-7 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....NORTHWEST 20-30 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2400, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(35-45%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1000.  
MAX TEMPERATURE.....37-41.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........38-46%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-7 MPH SHIFTING TO THE NORTH 8-14  
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 35-45 MPH.  
MIXING HEIGHT.......7500-8500 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 1100, THEN AROUND 20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000. VERY GOOD AFTER 1300.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 20S. WEST WINDS  
5-7 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST  
WINDS 5-8 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS. LOWS  
IN THE LOWER 30S. HIGHS IN THE UPPER 40S. NORTH WINDS 5-7 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
LOWER 20S. HIGHS IN THE LOWER 40S. SOUTH WINDS 5-6 MPH.  
 

 
 
COZ240-140015-  
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  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1200, THEN MOSTLY  
SUNNY UNTIL 1300, THEN PARTLY CLOUDY(30-40%).  
MAX TEMPERATURE.....51-55.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........17-21%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 4-8 MPH SHIFTING TO THE NORTHEAST  
4-13 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(55-60%) UNTIL 1800, THEN MOSTLY  
CLOUDY. CHANCE OF SNOW AFTER 2100 UNTIL 2300,  
THEN SNOW LIKELY UNTIL 0400, THEN CHANCE OF  
SNOW.  
MIN TEMPERATURE.....23-27.  
24 HR TREND......7-10 DEGREES COOLER.  
MAX HUMIDITY........95-99%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 4-8 MPH SHIFTING TO THE NORTH  
AFTER MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1800, THEN NORTH 10-15 MPH  
UNTIL 0200, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1000.  
MAX TEMPERATURE.....36-40.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........40-50%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......NORTH WINDS 8-14 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......7500-8500 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 1000, THEN AROUND 25 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1000. EXCELLENT AFTER 1300.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 20S. SOUTHWEST  
WINDS 5-8 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE UPPER 50S.  
SOUTHWEST WINDS 5-9 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS. LOWS  
AROUND 30. HIGHS IN THE UPPER 40S. NORTHEAST WINDS 5-8 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 20.  
HIGHS IN THE LOWER 40S. SOUTHWEST WINDS 5-8 MPH.  
 

 
 
COZ241-140015-  
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-  
INCLUDING CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0600, THEN PARTLY  
CLOUDY(40-50%).  
MAX TEMPERATURE.....47-51.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........18-22%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 5-9 MPH SHIFTING TO THE NORTH  
7-13 MPH IN THE AFTERNOON. GUSTS UP TO 20 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 1500, THEN NORTHEAST  
AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 2300, THEN  
SNOW LIKELY.  
MIN TEMPERATURE.....18-24.  
24 HR TREND......7-10 DEGREES COOLER.  
MAX HUMIDITY........96-99%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-12 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 0200, THEN AROUND 20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1300, THEN PARTLY  
CLOUDY(50-60%). CHANCE OF SNOW SHOWERS UNTIL  
0900, THEN SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....31-37.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........48-58%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTH WINDS 9-15 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......7000-8000 FT AGL.  
TRANSPORT WINDS.....NORTH 20-25 MPH UNTIL 1000, THEN AROUND 30 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 1000. EXCELLENT AFTER 1300.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 16. WEST WINDS  
5-9 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE LOWER 50S.  
SOUTHWEST WINDS 5-9 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 40S. NORTH WINDS 5-9 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 16.  
HIGHS IN THE UPPER 30S. NORTHWEST WINDS 5-9 MPH.  
 

 
 
COZ242-140015-  
NORTHEAST WELD COUNTY-  
INCLUDING BRIGGSDALE, EAST PAWNEE GRASSLANDS, GROVER,  
PAWNEE BUTTES, RAYMER, AND STONEHAM  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0600, THEN PARTLY  
CLOUDY(35-45%) UNTIL 0800, THEN SUNNY UNTIL  
1500, THEN PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....49-53.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........21-25%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......BREEZY. NORTH WINDS 16-26 MPH WITH GUSTS TO 40  
MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTH 30-35 MPH UNTIL 1400, THEN AROUND 25 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN VERY GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN CLOUDY.  
SLIGHT CHANCE OF SNOW AFTER 2000.  
MIN TEMPERATURE.....22-26.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........81-91%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 12-18 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH 25-30 MPH.  
SMOKE DISPERSAL.....GOOD.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%).  
MAX TEMPERATURE.....36-42.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........35-43%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 13-23 MPH INCREASING TO  
NORTH 24-34 MPH IN THE AFTERNOON. GUSTS UP TO  
50 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 45-55 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL.  
TRANSPORT WINDS.....NORTH 30-35 MPH UNTIL 0800, THEN 40-50 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0800, THEN VERY GOOD UNTIL 1000,  
THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 18. NORTHWEST WINDS  
8-14 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY. HIGHS IN THE MID 50S. WEST  
WINDS 9-15 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. NORTH WINDS  
10-16 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 18. HIGHS IN THE LOWER 40S.  
NORTHWEST WINDS 8-14 MPH.  
 

 
 
COZ243-140015-  
CENTRAL AND SOUTH WELD COUNTY-  
INCLUDING EATON, FORT LUPTON, GREELEY, AND ROGGEN  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0600, THEN PARTLY  
CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....52-56.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........19-23%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......NORTH WINDS 7-13 MPH. GUSTS UP TO 20 MPH IN THE  
AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 5000-6000 FT  
AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 1600, THEN NORTHEAST  
AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(55-60%) UNTIL 1800, THEN CLOUDY.  
SLIGHT CHANCE OF RAIN AND SNOW UNTIL 2300, THEN  
CHANCE OF SNOW.  
MIN TEMPERATURE.....22-26.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........91-100%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-12 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTHWEST 20-30 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 2300, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 0900.  
MAX TEMPERATURE.....40-44.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........35-39%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 5-9 MPH WITH GUSTS TO  
25 MPH INCREASING TO NORTH 16-26 MPH WITH GUSTS  
TO 35 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 1000, THEN NORTH  
25-30 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1400.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 17. WEST WINDS  
5-8 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY. HIGHS IN THE MID 50S.  
SOUTHWEST WINDS 5-8 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE UPPER 40S. NORTH WINDS  
5-8 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 18. HIGHS IN THE LOWER 40S. WEST WINDS 5-8 MPH.  
 

 
 
COZ244-140015-  
MORGAN COUNTY-  
INCLUDING BRUSH, FORT MORGAN, GOODRICH, AND WIGGINS  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0600, THEN PARTLY  
CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....51-55.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........19-23%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTH WINDS 12-22 MPH WITH GUSTS TO 35 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH UNTIL 1000. NORTH AFTER  
1600.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 2200.  
MIN TEMPERATURE.....23-27.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........86-96%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTH WINDS 8-14 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH.  
SMOKE DISPERSAL.....FAIR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 0800.  
MAX TEMPERATURE.....40-44.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........37-41%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 9-15 MPH INCREASING TO  
NORTH 22-32 MPH IN THE AFTERNOON. GUSTS UP TO  
45 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 45-55 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH UNTIL 0700. NORTH 35-40 MPH  
AFTER 1000.  
SMOKE DISPERSAL.....FAIR UNTIL 0800, THEN GOOD UNTIL 0900, THEN  
VERY GOOD UNTIL 1000, THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 17. WEST WINDS  
6-12 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST  
WINDS 6-12 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 40S. NORTH WINDS  
8-14 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 19. HIGHS IN THE LOWER 40S.  
NORTHWEST WINDS 6-12 MPH.  
 

 
 
COZ245-140015-  
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-  
INCLUDING BENNETT, BYERS, DEER TRAIL, AND LEADER  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 1000, THEN MOSTLY  
SUNNY UNTIL 1500, THEN PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....50-54.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........19-23%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTH WINDS 7-13 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....NORTH 20-25 MPH UNTIL 1100. 15-20 MPH AFTER  
1300.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1600, THEN  
FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN CLOUDY.  
SLIGHT CHANCE OF SNOW AFTER 2100.  
MIN TEMPERATURE.....22-26.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........98-100%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-12 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 10 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1300, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1000.  
MAX TEMPERATURE.....37-41.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........41-47%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 8-14 MPH WITH GUSTS TO  
30 MPH INCREASING TO NORTH 16-26 MPH WITH GUSTS  
TO 40 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL.  
TRANSPORT WINDS.....NORTH 20-25 MPH UNTIL 0800, THEN 30-35 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 0900, THEN VERY GOOD UNTIL 1100,  
THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 17. WEST WINDS  
6-12 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S.  
SOUTHWEST WINDS 6-12 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS. LOWS  
IN THE MID 20S. HIGHS IN THE UPPER 40S. NORTH WINDS 7-13 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 18. HIGHS IN THE LOWER 40S.  
NORTHWEST WINDS 6-12 MPH.  
 

 
 
COZ248-140015-  
LOGAN COUNTY-  
INCLUDING CROOK, MERINO, STERLING, AND PEETZ  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0600, THEN PARTLY  
CLOUDY(35-45%) UNTIL 0800, THEN SUNNY UNTIL  
1500, THEN PARTLY CLOUDY(30-40%).  
MAX TEMPERATURE.....50-54.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........22-26%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 19-29 MPH WITH GUSTS TO  
45 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 30-35 MPH UNTIL 1100. NORTH 25-30 MPH  
AFTER 1300.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN VERY GOOD UNTIL 1600,  
THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN MOSTLY  
CLOUDY.  
MIN TEMPERATURE.....24-28.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........83-91%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 10-16 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.  
SMOKE DISPERSAL.....FAIR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%).  
MAX TEMPERATURE.....39-43.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........39-43%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 13-23 MPH INCREASING TO  
NORTH 25-35 MPH IN THE AFTERNOON. GUSTS UP TO  
50 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 45-55 MPH.  
MIXING HEIGHT.......7000-8000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 25-30 MPH UNTIL 0800, THEN 35-40 MPH  
UNTIL 1100, THEN NORTH 40-50 MPH UNTIL 1600,  
THEN AROUND 35 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 18. NORTHWEST WINDS  
7-13 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST  
WINDS 8-14 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN THE  
MID 20S. HIGHS IN THE MID 40S. NORTH WINDS 8-14 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 19. HIGHS IN THE LOWER 40S.  
NORTHWEST WINDS 7-13 MPH.  
 

 
 
COZ249-140015-  
WASHINGTON COUNTY-  
INCLUDING AKRON, COPE, LAST CHANCE, AND OTIS  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
SUNNY UNTIL 1500, THEN PARTLY CLOUDY(30-40%).  
MAX TEMPERATURE.....50-54.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........20-24%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 16-26 MPH WITH GUSTS TO  
40 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4000-5000 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 25-30 MPH UNTIL 1000. NORTH AFTER  
1500.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN VERY GOOD UNTIL 1600,  
THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 2300.  
MIN TEMPERATURE.....23-27.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........89-99%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 8-14 MPH. GUSTS UP TO 20 MPH IN  
THE EVENING.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1100, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1300, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 1500, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 0900.  
MAX TEMPERATURE.....38-42.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........39-43%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 12-18 MPH WITH GUSTS TO  
40 MPH INCREASING TO NORTH 24-33 MPH WITH GUSTS  
TO 50 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 45-55 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 25-30 MPH UNTIL 0800. NORTH 40-50 MPH  
AFTER 1100.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN VERY GOOD UNTIL 1000,  
THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 17. WEST WINDS  
7-13 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST  
WINDS 7-13 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS IN THE MID 40S. NORTH WINDS 8-14 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 19. HIGHS IN THE LOWER 40S.  
NORTHWEST WINDS 7-13 MPH.  
 

 
 
COZ250-140015-  
SEDGWICK COUNTY-  
INCLUDING JULESBURG, OVID, AND SEDGWICK  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0600, THEN PARTLY  
CLOUDY(50-60%) UNTIL 0700, THEN MOSTLY SUNNY  
UNTIL 1600, THEN PARTLY CLOUDY(30-40%).  
MAX TEMPERATURE.....51-55.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 21-31 MPH WITH GUSTS TO  
45 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 30-35 MPH UNTIL 1100. NORTH AFTER  
1500.  
SMOKE DISPERSAL.....POOR UNTIL 1000. VERY GOOD AFTER 1300.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1900, THEN MOSTLY  
CLOUDY.  
MIN TEMPERATURE.....25-29.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........83-89%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 9-15 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 25-30 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 2000, THEN POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1100, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1200, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 1600, THEN PARTLY  
CLOUDY(50-60%).  
MAX TEMPERATURE.....38-42.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........41-45%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 12-18 MPH WITH GUSTS TO  
40 MPH INCREASING TO NORTH 24-33 MPH WITH GUSTS  
TO 50 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 25-30 MPH UNTIL 0800, THEN NORTH  
35-40 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 18. NORTHWEST WINDS  
7-13 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY. HIGHS IN THE MID 50S. WEST  
WINDS 8-14 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN THE  
MID 20S. HIGHS IN THE MID 40S. NORTH WINDS 8-14 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE LOWER 40S.  
NORTHWEST WINDS 8-14 MPH.  
 

 
 
COZ251-140015-  
PHILLIPS COUNTY-  
INCLUDING AMHERST, HAXTUN, AND HOLYOKE  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0600, THEN PARTLY  
CLOUDY(40-50%) UNTIL 0700, THEN MOSTLY SUNNY  
UNTIL 1600, THEN PARTLY CLOUDY(30-35%).  
MAX TEMPERATURE.....51-55.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........22-26%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 20-30 MPH WITH GUSTS TO  
45 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4000-5000 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 30-35 MPH UNTIL 1100, THEN NORTH  
35-40 MPH UNTIL 1400, THEN AROUND 30 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN VERY GOOD UNTIL 1600,  
THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1900, THEN MOSTLY  
CLOUDY.  
MIN TEMPERATURE.....25-29.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........83-89%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 9-15 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 2000, THEN POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1100, THEN PARTLY  
CLOUDY(55-60%) UNTIL 1300, THEN MOSTLY CLOUDY  
UNTIL 1600, THEN PARTLY CLOUDY(50-60%).  
MAX TEMPERATURE.....40-44.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........38-42%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......WINDY. NORTHWEST WINDS 13-19 MPH WITH GUSTS TO  
40 MPH INCREASING TO NORTH 24-32 MPH WITH GUSTS  
TO 50 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......7000-8000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 25-30 MPH UNTIL 0800, THEN NORTH  
35-40 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 19. NORTHWEST WINDS  
6-12 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST  
WINDS 7-13 MPH.    
SATURDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS IN  
THE MID 20S. HIGHS IN THE UPPER 40S. NORTH WINDS 8-14 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE  
LOWER 40S. NORTHWEST WINDS 7-13 MPH.  
 

 
 
COZ246-140015-  
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN  
COUNTY-  
INCLUDING AGATE, HUGO, LIMON, AND MATHESON  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0800, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 0900, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1300, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....49-53.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........19-23%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTH WINDS 13-23 MPH WITH GUSTS TO 40 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTH 25-30 MPH UNTIL 1100. 20-25 MPH AFTER  
1400.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1600, THEN  
FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 2100.  
MIN TEMPERATURE.....21-25.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........97-99%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 8-14 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT UNTIL 2300, THEN 10 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1300, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1000.  
MAX TEMPERATURE.....36-40.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........42-50%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 11-17 MPH WITH GUSTS TO  
35 MPH INCREASING TO NORTH 19-29 MPH WITH GUSTS  
TO 45 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......7500-8500 FT AGL.  
TRANSPORT WINDS.....NORTH 25-30 MPH UNTIL 0900, THEN 35-40 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN VERY GOOD UNTIL 1100,  
THEN EXCELLENT.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 15. NORTHWEST WINDS  
7-13 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST  
WINDS 6-12 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
MID 20S. HIGHS IN THE MID 40S. NORTH WINDS 9-15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 17. HIGHS AROUND 40.  
NORTHWEST WINDS 7-13 MPH.  
 

 
 
COZ247-140015-  
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-  
INCLUDING FORDER, KARVAL, KUTCH, AND PUNKIN CENTER  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0700, THEN PARTLY  
CLOUDY(40-50%).  
MAX TEMPERATURE.....52-56.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........17-21%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTH WINDS 13-23 MPH WITH GUSTS TO 35 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTH 25-30 MPH UNTIL 1000, THEN 30-35 MPH  
UNTIL 1400, THEN 20-25 MPH UNTIL 1600, THEN  
AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1600, THEN  
FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1800, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 2100.  
MIN TEMPERATURE.....24-28.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........86-96%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 8-14 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1200, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1000.  
MAX TEMPERATURE.....39-43.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........41-45%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......BREEZY. NORTH WINDS 10-16 MPH WITH GUSTS TO 30  
MPH INCREASING TO 17-27 MPH WITH GUSTS TO 40  
MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......7000-8000 FT AGL.  
TRANSPORT WINDS.....NORTH 25-30 MPH UNTIL 1000, THEN AROUND 35 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 0900. EXCELLENT AFTER 1300.  
   
THURSDAY NIGHT
 
COLDER. MOSTLY CLEAR. LOWS AROUND 16. NORTHWEST  
WINDS 6-12 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE MID 50S.  
SOUTHWEST WINDS 5-9 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
MID 20S. HIGHS AROUND 50. NORTH WINDS 9-15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 19. HIGHS IN THE LOWER 40S. NORTH WINDS 7-13 MPH.  
 

 
 
COZ215-140015-  
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-  
INCLUDING ESTES PARK, GLENDEVEY, LARAMIE RIVER VALLEY, NEDERLAND,  
AND RED FEATHER LAKES  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF SNOW AFTER  
1500.  
MAX TEMPERATURE.....39-49.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........17-27%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 7-13 MPH WITH GUSTS TO 25  
MPH.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 7-13 MPH. GUSTS UP TO 30  
MPH DECREASING TO 20 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......5000-6000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH UNTIL 0800, THEN 10-15 MPH.  
SMOKE DISPERSAL.....FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW.  
MIN TEMPERATURE.....15-25.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........86-96%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH WINDS 4-8 MPH.  
RIDGES/UPR SLOPES....NORTH WINDS 4-8 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT UNTIL 2300, THEN 40 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-25 MPH.  
MIXING HEIGHT.......3500-4000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1800, THEN NORTH 10-15 MPH  
UNTIL 0200, THEN AROUND 20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0800, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1600, THEN MOSTLY SUNNY.  
CHANCE OF SNOW SHOWERS UNTIL 0800, THEN SLIGHT  
CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....25-35.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........43-53%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 10-16 MPH WITH GUSTS TO 35  
MPH.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 9-15 MPH WITH GUSTS TO 30  
MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 0 PERCENT.  
15K FT MSL WINDS....NORTH 35-45 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 20-25 MPH UNTIL 1100, THEN AROUND 30  
MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 1000. EXCELLENT AFTER 1300.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 19. WEST WINDS  
8-14 MPH.    
FRIDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE LOWER 40S. WEST  
WINDS 9-15 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 30S. NORTHWEST WINDS 6-12 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 16.  
HIGHS IN THE LOWER 30S. WEST WINDS 5-9 MPH.  
 

 
 
COZ216-140015-  
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  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%). SLIGHT CHANCE OF SNOW  
AFTER 1600.  
MAX TEMPERATURE.....41-51.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........15-21%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 4-8 MPH WITH GUSTS TO 20 MPH  
SHIFTING TO THE NORTHEAST 4-7 MPH IN THE  
AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 6-12 MPH WITH GUSTS TO 20  
MPH SHIFTING TO THE NORTH 4-7 MPH IN THE  
AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 1600, THEN SOUTH.  
SMOKE DISPERSAL.....POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 2300, THEN  
SNOW.  
MIN TEMPERATURE.....15-23.  
24 HR TREND......10-15 DEGREES COOLER.  
MAX HUMIDITY........89-99%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHEAST WINDS 4-7 MPH.  
RIDGES/UPR SLOPES....NORTHEAST WINDS 4-7 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 2300, THEN 60 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2400, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%). CHANCE OF SNOW SHOWERS UNTIL  
1000, THEN SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....26-36.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........45-55%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH WINDS 5-11 MPH.  
RIDGES/UPR SLOPES....NORTH WINDS 6-12 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 0 PERCENT.  
15K FT MSL WINDS....NORTH 30-40 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1100, THEN GOOD.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 16. NORTHWEST WINDS  
5-9 MPH.    
FRIDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE UPPER 40S. WEST  
WINDS 5-9 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS AROUND 40. NORTHWEST WINDS 5-8 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 15.  
HIGHS IN THE MID 30S. WEST WINDS 5-7 MPH.  
 

 
 
COZ211-140015-  
JACKSON COUNTY BELOW 9000 FEET-  
INCLUDING GOULD, NORTH PARK, RAND, SPICER, AND WALDEN  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1600.  
MAX TEMPERATURE.....35-39.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........33-37%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-7 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 0800, THEN LIGHT  
UNTIL 1100, THEN WEST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW.  
MIN TEMPERATURE.....10-14.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........100%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 5-9 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................50 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1800, THEN LIGHT UNTIL  
2200, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1100.  
MAX TEMPERATURE.....22-26.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........60-70%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 7-13 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 40-50 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 1000, THEN 20-25 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
THURSDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 6. SOUTHWEST WINDS  
5-9 MPH.    
FRIDAY
 
MOSTLY CLEAR. HIGHS IN THE MID 30S. SOUTHWEST WINDS  
6-12 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
16. HIGHS IN THE UPPER 20S. WEST WINDS 6-12 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 8. HIGHS IN THE MID 20S. WEST WINDS 5-9 MPH.  
 

 
 
COZ213-140015-  
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  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1600.  
MAX TEMPERATURE.....37-43.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........25-33%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......WEST WINDS 4-6 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 0800, THEN LIGHT UNTIL  
1000, THEN WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2300, THEN SNOW.  
MIN TEMPERATURE.....13-17.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........94-98%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......NORTH WINDS 4-6 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT UNTIL 2300, THEN 50 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-25 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1800, THEN LIGHT UNTIL  
0200, THEN NORTHEAST AROUND 10 MPH UNTIL 0300,  
THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%). CHANCE OF SNOW SHOWERS UNTIL  
0800, THEN SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....25-31.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........52-62%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 6-12 MPH. GUSTS UP TO 20 MPH IN  
THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 0 PERCENT.  
15K FT MSL WINDS....NORTH 35-45 MPH.  
MIXING HEIGHT.......5000-6000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0600. NORTHWEST 20-25 MPH  
AFTER 1100.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
THURSDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 7. WEST WINDS  
5-7 MPH.    
FRIDAY
 
MOSTLY CLEAR. HIGHS IN THE MID 30S. SOUTHWEST WINDS  
5-7 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
15. HIGHS IN THE LOWER 30S. WEST WINDS 5-6 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 12. HIGHS IN THE UPPER 20S. WEST WINDS 5-6 MPH.  
 

 
 
COZ214-140015-  
CENTRAL AND SOUTHEAST PARK COUNTY-  
INCLUDING ELEVEN MILE CANYON RESERVOIR, FAIRPLAY, GUFFEY,  
HARTSEL, LAKE GEORGE, AND SOUTH PARK  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0600, THEN PARTLY  
CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%).  
MAX TEMPERATURE.....42-48.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........15-21%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5-11 MPH. GUSTS UP TO 20  
MPH IN THE MORNING.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 7-13 MPH. GUSTS UP TO 25  
MPH IN THE MORNING.  
HAINES INDEX........4 LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 20-30 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 2300, THEN  
SNOW.  
MIN TEMPERATURE.....13-17.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........94-98%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...EAST WINDS 4-8 MPH.  
RIDGES/UPR SLOPES....EAST WINDS 5-11 MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 2300, THEN 50 PERCENT.  
15K FT MSL WINDS....WEST 15-25 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2000, THEN LIGHT  
UNTIL 2400, THEN EAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(35-45%). CHANCE OF SNOW SHOWERS UNTIL  
1000, THEN SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....24-30.  
24 HR TREND......15-20 DEGREES COOLER.  
MIN HUMIDITY........42-52%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 6-12 MPH. GUSTS UP TO 20  
MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTH WINDS 7-13 MPH. GUSTS UP TO 20 MPH  
IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......5500-6500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 1300, THEN NORTH  
AROUND 20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 10. NORTHWEST WINDS  
7-13 MPH.    
FRIDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE LOWER 40S. WEST  
WINDS 6-12 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
19. HIGHS IN THE MID 30S. NORTHWEST WINDS 5-8 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 10.  
HIGHS AROUND 30. NORTHWEST WINDS 5-8 MPH.  
 

 
 
COZ218-140015-  
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  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF SNOW AFTER  
1500.  
MAX TEMPERATURE.....28-38.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........25-33%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 6-12 MPH. GUSTS UP TO 25 MPH IN  
THE MORNING.  
RIDGES/UPR SLOPES....WEST WINDS 9-15 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 20 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 40-50 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 1900, THEN SNOW UNTIL  
0400, THEN SNOW LIKELY.  
MIN TEMPERATURE.....8-16.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........90-100%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
NORTH 4-8 MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....WEST WINDS 4-8 MPH SHIFTING TO THE NORTH  
5-9 MPH WITH GUSTS TO 20 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................60 PERCENT UNTIL 2300, THEN 70 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-25 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1900, THEN LIGHT UNTIL  
2300, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY  
CLOUDY(40-50%). CHANCE OF SNOW SHOWERS UNTIL  
1100, THEN SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....15-25.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........61-71%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 9-15 MPH WITH GUSTS TO 30  
MPH.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 10-20 MPH WITH GUSTS TO 35  
MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT.  
15K FT MSL WINDS....NORTH 35-45 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0900, THEN 25-30 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1100, THEN GOOD.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 9. WEST WINDS  
10-16 MPH.    
FRIDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE LOWER 30S. WEST  
WINDS 10-16 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
18. HIGHS IN THE MID 20S. WEST WINDS 8-14 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 9.  
HIGHS IN THE LOWER 20S. WEST WINDS 7-13 MPH.  
 

 
 
COZ212-140015-  
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  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0600, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF SNOW AFTER  
1500.  
MAX TEMPERATURE.....30-40.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........20-30%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 7-13 MPH. GUSTS UP TO 30  
MPH IN THE MORNING.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 11-17 MPH. GUSTS UP TO 35  
MPH IN THE MORNING.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2300, THEN SNOW.  
MIN TEMPERATURE.....7-17.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........90-100%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
EAST AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....WEST WINDS 5-9 MPH WITH GUSTS TO 20 MPH  
SHIFTING TO THE NORTH 4-7 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT UNTIL 2300, THEN 70 PERCENT.  
15K FT MSL WINDS....WEST 15-25 MPH.  
MIXING HEIGHT.......2500-3000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 2100, THEN LIGHT  
UNTIL 0300, THEN NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%). CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....15-25.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........57-67%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 9-15 MPH. GUSTS UP TO 20  
MPH INCREASING TO 30 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 11-21 MPH. GUSTS UP TO 25  
MPH INCREASING TO 35 MPH IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................20 PERCENT UNTIL 1100, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTH 30-40 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 0900. NORTHWEST AROUND 30  
MPH AFTER 1300.  
SMOKE DISPERSAL.....FAIR UNTIL 1100, THEN GOOD.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 8. NORTHWEST WINDS  
10-16 MPH.    
FRIDAY
 
NOT AS COLD. MOSTLY CLEAR. HIGHS IN THE LOWER 30S. WEST  
WINDS 8-14 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
18. HIGHS IN THE UPPER 20S. WEST WINDS 7-13 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 8.  
HIGHS IN THE LOWER 20S. WEST WINDS 6-12 MPH.  
 

 
 
COZ217-140015-  
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-  
INCLUDING EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS,  
AND RABBIT EARS PASS  
429 AM MST WED DEC 13 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1500.  
MAX TEMPERATURE.....29-39.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........25-33%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 4-7 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 6-12 MPH. GUSTS UP TO 25 MPH IN  
THE MORNING.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW.  
MIN TEMPERATURE.....10-16.  
24 HR TREND......4-7 DEGREES COOLER.  
MAX HUMIDITY........91-100%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH WINDS 5-9 MPH.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 4-8 MPH SHIFTING TO THE  
NORTH 7-13 MPH WITH GUSTS TO 20 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................40 PERCENT UNTIL 2300, THEN 50 PERCENT.  
15K FT MSL WINDS....NORTHWEST 20-30 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 2000, THEN LIGHT  
UNTIL 2100, THEN NORTH 10-15 MPH UNTIL 0200,  
THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY  
CLOUDY(40-50%). CHANCE OF SNOW SHOWERS UNTIL  
0900, THEN SLIGHT CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....17-27.  
24 HR TREND......10-15 DEGREES COOLER.  
MIN HUMIDITY........61-71%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 8-14 MPH WITH GUSTS TO 25  
MPH.  
RIDGES/UPR SLOPES....NORTH WINDS 11-20 MPH WITH GUSTS TO 30  
MPH.  
HAINES INDEX........2 VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT UNTIL 1100, THEN 0 PERCENT.  
15K FT MSL WINDS....NORTH 40-50 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 0900, THEN NORTHWEST  
25-30 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1100, THEN GOOD.  
   
THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 9. WEST WINDS  
7-13 MPH.    
FRIDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS  
8-14 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
17. HIGHS IN THE MID 20S. WEST WINDS 7-13 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 10. HIGHS IN THE LOWER 20S. WEST WINDS 6-12 MPH.  
 

 
   
OUTLOOK 6 TO 10 DAYS
 
 
TEMPERATURES ABOVE NORMAL AND PRECIPITATION NEAR NORMAL.  
 

 
 
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