401  
FNUS55 KBOU 201044  
FWFBOU  
 
FIRE WEATHER FORECAST FOR NORTHEAST AND NORTH CENTRAL COLORADO  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
444 AM MDT SUN AUG 20 2017  
   
DISCUSSION...TODAY AND TONIGHT
 
A WEAK COLD FRONT WILL SLIDE  
ACROSS THE PLAINS LATER THIS MORNING, BUT TEMPERATURES WILL ONLY  
BE SLIGHTLY COOLER WITH A LITTLE BUMP IN HUMIDITY LEVELS. ISOLATED  
TO SCATTERED THUNDERSTORM DEVELOPMENT CAN BE EXPECTED THIS  
AFTERNOON ACROSS THE MOUNTAINS AND FOOTHILLS, SPREADING ONTO THE  
PLAINS LATE THIS AFTERNOON AND EVENING. LIGHT WESTERLY FLOW ALOFT  
WILL REMAIN IN PLACE WITH A RIDGE OF HIGH PRESSURE OVER THE  
SOUTHERN PLAINS.  
 
LONG TERM DISCUSSION...MONDAY THROUGH THURSDAY...THUNDERSTORMS  
MONDAY MAY CONTINUE TO PRODUCE MORE GUSTY WINDS THAN RAIN, HOWEVER  
A COLD FRONT WILL SLIDE SOUTH OVERNIGHT FOR COOLER AND WETTER  
CONDITIONS TUESDAY. MOISTURE WILL REMAIN ELEVATED WEDNESDAY AND  
ESPECIALLY THURSDAY, WITH STORMS BECOMING WETTER AND MORE  
WIDESPREAD, AND HUMIDITY REMAINING ABOVE 30 PERCENT.  
SOUTHEASTERLY WINDS WILL BE INCREASING OVER THE EASTERN PLAINS,  
BUT HUMIDITY SHOULD KEEP FIRE CONCERNS LOW.  
 
...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...  
 
COZ238-202330-  
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-  
INCLUDING FORT COLLINS, HEREFORD, LOVELAND, NUNN,  
AND WEST PAWNEE GRASSLANDS  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1700, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1400.  
MAX TEMPERATURE.....84-90.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........20-24%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-12 MPH SHIFTING TO THE EAST 7-13  
MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL UNTIL 1000. 13000-14000 FT AGL  
AFTER 1200.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 1400, THEN LIGHT  
UNTIL 1600, THEN SOUTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....54-58.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........75-85%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......EAST WINDS 5-9 MPH SHIFTING TO THE NORTHEAST  
4-7 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......10000-11000 FT AGL UNTIL 2000, THEN 1500-2500  
FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2000, THEN NORTH  
UNTIL 2300, THEN NORTHEAST UNTIL 0500, THEN  
WEST.  
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0800, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....82-86.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........24-28%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-7 MPH SHIFTING TO THE NORTH  
7-13 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1100, THEN 12000-13000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1300.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTH WINDS 5-9 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
AROUND 80. SOUTHEAST WINDS 6-12 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 50S. HIGHS IN THE MID 80S. SOUTHWEST WINDS 5-7 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 50S. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5-7 MPH.  
 

 
 
COZ239-202330-  
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD  
COUNTY-  
INCLUDING ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1500.  
MAX TEMPERATURE.....86-90.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........19-23%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-6 MPH SHIFTING TO THE  
NORTHEAST 6-12 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1000. 13500-14500 FT AGL  
AFTER 1200.  
TRANSPORT WINDS.....LIGHT WINDS.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(50-60%) UNTIL 0500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100.  
MIN TEMPERATURE.....56-60.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........60-70%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......WEST WINDS 6-12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......9500-10500 FT AGL UNTIL 2000, THEN 2000-3000 FT  
AGL.  
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 2000, THEN SOUTH UNTIL  
0200, THEN NORTHWEST UNTIL 0500, THEN LIGHT.  
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1400, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....82-86.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-12 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1100, THEN 10500-11500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1000, THEN WEST AROUND 10 MPH  
UNTIL 1100, THEN NORTH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1200.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTH WINDS 5-8 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE UPPER 70S. SOUTHEAST WINDS 5-7 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5-6 MPH.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS  
5-7 MPH.  
 

 
 
COZ240-202330-  
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  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1600, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1500.  
MAX TEMPERATURE.....87-91.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........15-19%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-7 MPH SHIFTING TO THE NORTHEAST  
7-13 MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1100, THEN 14000-15000  
FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1000, THEN LIGHT.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(50-60%) UNTIL 0500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....57-61.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........64-72%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 7-13 MPH WITH GUSTS TO 20 MPH  
SHIFTING TO THE SOUTHWEST 5-9 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHEAST 15-20 MPH.  
MIXING HEIGHT.......11000-12000 FT AGL UNTIL 2000, THEN 1500-2500  
FT AGL.  
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 2000, THEN SOUTH 15-20  
MPH UNTIL 0200, THEN NORTH AROUND 10 MPH UNTIL  
0500, THEN LIGHT.  
SMOKE DISPERSAL.....GOOD UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 1100, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1400, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....83-87.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-7 MPH SHIFTING TO THE NORTH 4-13  
MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1100, THEN 11500-12500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1100, THEN NORTH.  
SMOKE DISPERSAL.....POOR UNTIL 1200. VERY GOOD AFTER 1500.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE UPPER 50S. NORTH WINDS 5-8 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
AROUND 80. SOUTHEAST WINDS 5-9 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 5-7 MPH.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 5-7 MPH.  
 

 
 
COZ241-202330-  
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-  
INCLUDING CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1600, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1500.  
MAX TEMPERATURE.....82-88.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........19-23%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTHWEST WINDS 4-8 MPH SHIFTING TO THE  
NORTHEAST 7-13 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......3500-4500 FT AGL UNTIL 1100, THEN 13000-14000  
FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2300, THEN PARTLY  
CLOUDY(55-60%) UNTIL 0400, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....53-59.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........68-78%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......EAST WINDS 7-13 MPH SHIFTING TO THE WEST 4-12  
MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-25 MPH.  
MIXING HEIGHT.......10500-11500 FT AGL UNTIL 2000, THEN 1500-2500  
FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH UNTIL 2000, THEN WEST 15-20 MPH  
UNTIL 2400, THEN AROUND 10 MPH UNTIL 0500, THEN  
LIGHT.  
SMOKE DISPERSAL.....GOOD UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....77-83.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........27-33%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-7 MPH SHIFTING TO THE  
NORTHEAST 6-12 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......5000-6000 FT AGL UNTIL 1200, THEN 10500-11500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1100, THEN NORTH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1400.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTHWEST WINDS 5-9 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE UPPER 70S. SOUTHEAST WINDS 6-12 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 50S. HIGHS AROUND 80. SOUTH WINDS 5-9 MPH.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 50S. HIGHS AROUND 80. SOUTH WINDS 5-9 MPH.  
 

 
 
COZ242-202330-  
NORTHEAST WELD COUNTY-  
INCLUDING BRIGGSDALE, EAST PAWNEE GRASSLANDS, GROVER,  
PAWNEE BUTTES, RAYMER, AND STONEHAM  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1600.  
MAX TEMPERATURE.....85-91.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........19-27%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTH WINDS 8-14 MPH SHIFTING TO THE NORTHEAST  
9-13 MPH IN THE AFTERNOON. GUSTS UP TO 20 MPH.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 15-20 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800. 12000-13000 FT  
AGL AFTER 1200.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....55-59.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........88-94%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......EAST WINDS 6-12 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......10000-11000 FT AGL UNTIL 2000. BELOW 1000 FT  
AGL AFTER 0300.  
TRANSPORT WINDS.....EAST 10-15 MPH UNTIL 2300, THEN 15-20 MPH UNTIL  
0500, THEN SOUTHWEST AROUND 10 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 2000. POOR AFTER 0400.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 1200, THEN PARTLY  
CLOUDY(55-60%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 1600, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....83-87.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........25-29%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-7 MPH SHIFTING TO THE NORTH 7-13  
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 9500-10500  
FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200. VERY GOOD AFTER 1500.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTHEAST WINDS 7-13 MPH.    
TUESDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS  
8-14 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 50S. HIGHS IN THE MID 80S. SOUTH WINDS 6-12 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 6-12 MPH.  
 

 
 
COZ243-202330-  
CENTRAL AND SOUTH WELD COUNTY-  
INCLUDING EATON, FORT LUPTON, GREELEY, AND ROGGEN  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1600.  
MAX TEMPERATURE.....89-93.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........17-23%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......NORTH WINDS 4-7 MPH SHIFTING TO THE NORTHEAST  
8-14 MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800. 14000-15000 FT  
AGL AFTER 1100.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN LIGHT  
UNTIL 1300, THEN NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(50-60%) UNTIL 0500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....55-59.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........79-89%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 5-9 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......11000-12000 FT AGL UNTIL 2000, THEN 1500-2500  
FT AGL.  
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 2000, THEN NORTHEAST  
UNTIL 0500, THEN WEST.  
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....85-89.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-6 MPH SHIFTING TO THE NORTH  
5-9 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL UNTIL 1200, THEN 11500-12500  
FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1100, THEN NORTH.  
SMOKE DISPERSAL.....POOR UNTIL 1200. VERY GOOD AFTER 1400.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTH WINDS 5-13 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE LOWER 80S. SOUTHEAST WINDS 5-9 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE UPPER 80S. SOUTH WINDS 5-7 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 5-7 MPH.  
 

 
 
COZ244-202330-  
MORGAN COUNTY-  
INCLUDING BRUSH, FORT MORGAN, GOODRICH, AND WIGGINS  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(35-45%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1600.  
MAX TEMPERATURE.....89-93.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........18-22%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-13 MPH SHIFTING TO THE  
NORTHEAST 8-13 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000. 13500-14500 FT  
AGL AFTER 1200.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1500.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1900, THEN MOSTLY  
CLOUDY(60-65%) UNTIL 2100, THEN PARTLY  
CLOUDY(50-60%) UNTIL 0200, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....57-61.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........84-92%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 6-12 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......11000-12000 FT AGL UNTIL 2000, THEN 1500-2500  
FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH UNTIL 2300, THEN NORTHEAST UNTIL  
0500, THEN WEST.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2000. POOR AFTER 2300.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....AROUND 88.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........26-30%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-7 MPH SHIFTING TO THE NORTH 4-13  
MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......11000-12000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN LIGHT UNTIL  
1300, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1300. VERY GOOD AFTER 1600.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTHEAST WINDS 6-12 MPH.    
TUESDAY
 
PARTLY CLOUDY. HIGHS IN THE MID 80S. SOUTHEAST WINDS  
7-13 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE UPPER 80S. SOUTH WINDS 6-12 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 6-12 MPH.  
 

 
 
COZ245-202330-  
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-  
INCLUDING BENNETT, BYERS, DEER TRAIL, AND LEADER  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY  
CLOUDY(40-50%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1500.  
MAX TEMPERATURE.....88-92.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........16-20%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-12 MPH SHIFTING TO THE  
NORTHEAST 8-14 MPH WITH GUSTS TO 20 MPH IN THE  
AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800. 13500-14500 FT  
AGL AFTER 1100.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1500.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(55-60%) UNTIL 0200, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....57-61.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........74-84%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......EAST WINDS 7-13 MPH WITH GUSTS TO 20 MPH  
SHIFTING TO THE SOUTHWEST 4-8 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL UNTIL 2200, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 0200, THEN NORTH UNTIL  
0500, THEN SOUTH.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2000. POOR AFTER 2400.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 1200, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1400, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....84-88.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........25-29%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-7 MPH SHIFTING TO THE NORTH 4-8  
MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL UNTIL 1200, THEN 11000-12000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1000, THEN LIGHT UNTIL 1400, THEN  
NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN VERY GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTH WINDS 5-13 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE LOWER 80S. SOUTHEAST WINDS 7-13 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
MID 80S. SOUTH WINDS 6-12 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 6-12 MPH.  
 

 
 
COZ248-202330-  
LOGAN COUNTY-  
INCLUDING CROOK, MERINO, STERLING, AND PEETZ  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY  
CLOUDY(35-45%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1600.  
MAX TEMPERATURE.....87-91.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........25-31%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 8-14 MPH.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 2.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 15-20 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800. 12500-13500 FT  
AGL AFTER 1400.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0300, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....57-61.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........94-98%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......EAST WINDS 6-12 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......9500-10500 FT AGL UNTIL 2000. BELOW 1000 FT AGL  
AFTER 0300.  
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 0400, THEN NORTHEAST  
AROUND 10 MPH UNTIL 0500, THEN SOUTHEAST.  
SMOKE DISPERSAL.....GOOD UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....85-89.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........29-35%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-7 MPH SHIFTING TO THE NORTH  
4-8 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 9500-10500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN WEST AROUND 10 MPH  
UNTIL 1500, THEN LIGHT UNTIL 1600, THEN  
NORTHWEST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE UPPER 50S. NORTHEAST WINDS 6-12 MPH.    
TUESDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS  
7-13 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE UPPER 80S. SOUTH WINDS 7-13 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 7-13 MPH.  
 

 
 
COZ250-202330-  
SEDGWICK COUNTY-  
INCLUDING JULESBURG, OVID, AND SEDGWICK  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY  
CLOUDY(30-40%).  
MAX TEMPERATURE.....87-91.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........32-36%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 7-13 MPH.  
HAINES INDEX........5 MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800. 9500-10500 FT AGL  
AFTER 1400.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0300, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....59-63.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........96-99%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 5-11 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......7500-8500 FT AGL UNTIL 2000, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....NORTHEAST 15-20 MPH UNTIL 0200, THEN NORTH  
UNTIL 0500, THEN NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....GOOD UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200 UNTIL 1500, THEN  
CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....85-89.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........36-40%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 4-6 MPH SHIFTING TO THE EAST 4-7  
MPH IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT UNTIL 1200, THEN 10 PERCENT.  
15K FT MSL WINDS....WEST 15-20 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 8000-9000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1000, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN  
THE UPPER 50S. NORTHEAST WINDS 5-13 MPH.    
TUESDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER 80S. EAST WINDS  
7-13 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE  
MID 80S. SOUTH WINDS 8-14 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 8-14 MPH.  
 

 
 
COZ251-202330-  
PHILLIPS COUNTY-  
INCLUDING AMHERST, HAXTUN, AND HOLYOKE  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY  
CLOUDY(30-40%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1600.  
MAX TEMPERATURE.....88-92.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........30-34%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-10 MPH SHIFTING TO THE NORTHEAST  
8-12 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 2.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900. 13500-14500 FT  
AGL AFTER 1500.  
TRANSPORT WINDS.....EAST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 2400, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....59-63.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........93-97%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 5-11 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......11000-12000 FT AGL UNTIL 2000, THEN 1500-2500  
FT AGL UNTIL 2400, THEN BELOW 1000 FT AGL UNTIL  
0100, THEN 1000-1500 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH UNTIL 2100, THEN NORTHEAST 15-20  
MPH UNTIL 0200, THEN NORTH UNTIL 0500, THEN  
NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2000. POOR AFTER 2200.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200 UNTIL 1500, THEN  
CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....AROUND 88.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........34-38%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 4-8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT UNTIL 1200, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 7000-8000 FT  
AGL.  
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 0800, THEN WEST UNTIL  
1100, THEN LIGHT UNTIL 1500, THEN SOUTHWEST  
AROUND 10 MPH UNTIL 1600, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN  
THE UPPER 50S. NORTHEAST WINDS 5-12 MPH.    
TUESDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER 80S. EAST WINDS  
6-10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE  
MID 80S. SOUTH WINDS 8-14 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 8-14 MPH.  
 

 
 
COZ249-202330-  
WASHINGTON COUNTY-  
INCLUDING AKRON, COPE, LAST CHANCE, AND OTIS  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY  
CLOUDY(35-45%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1500.  
MAX TEMPERATURE.....89-93.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........19-25%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-13 MPH SHIFTING TO THE  
NORTHEAST 7-13 MPH WITH GUSTS TO 20 MPH IN THE  
AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900. 13500-14500 FT  
AGL AFTER 1100.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200. VERY GOOD AFTER 1700.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 2400, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....58-62.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........85-91%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 6-12 MPH. GUSTS UP TO 20 MPH IN  
THE EVENING.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL UNTIL 2200, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 2300, THEN SOUTHWEST  
UNTIL 0100, THEN NORTHEAST UNTIL 0500, THEN  
SOUTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....VERY GOOD UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200 UNTIL 1500, THEN  
CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....84-88.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........29-33%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5-11 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT UNTIL 1200, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL UNTIL 1200, THEN 10000-11000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1100, THEN LIGHT.  
SMOKE DISPERSAL.....POOR UNTIL 1500, THEN FAIR.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE UPPER 50S. NORTH WINDS 5-13 MPH.    
TUESDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS  
7-13 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
MID 80S. SOUTH WINDS 7-13 MPH.    
THURSDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
UPPER 50S. HIGHS IN THE MID 80S. SOUTH WINDS 7-13 MPH.  
 

 
 
COZ246-202330-  
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN  
COUNTY-  
INCLUDING AGATE, HUGO, LIMON, AND MATHESON  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1500.  
MAX TEMPERATURE.....86-90.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........18-22%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-8 MPH SHIFTING TO THE  
NORTHEAST 7-13 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700. 13000-14000 FT  
AGL AFTER 1100.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1600.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 2300, THEN PARTLY  
CLOUDY(55-60%) UNTIL 2400, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....55-59.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........80-90%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 7-13 MPH SHIFTING TO THE WEST  
4-8 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHEAST 15-20 MPH.  
MIXING HEIGHT.......9500-10500 FT AGL UNTIL 2200, THEN 4000-5000 FT  
AGL UNTIL 2400, THEN BELOW 1000 FT AGL UNTIL  
0100, THEN 1000 FT AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 2300, THEN NORTHWEST  
UNTIL 0500, THEN SOUTHWEST.  
SMOKE DISPERSAL.....GOOD UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....81-85.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........29-33%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH SHIFTING TO THE  
SOUTHEAST 6-12 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL UNTIL 1200, THEN 10000-11000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1100, THEN LIGHT UNTIL 1400, THEN  
NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 50S. NORTH WINDS 5-9 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE UPPER 70S. SOUTHEAST WINDS 7-13 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 50S. HIGHS IN THE LOWER 80S. SOUTH WINDS 8-14 MPH.    
THURSDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 50S. HIGHS IN THE LOWER 80S. SOUTH WINDS 7-13 MPH.  
 

 
 
COZ215-247-202330-  
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-  
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-  
INCLUDING ESTES PARK, GLENDEVEY, LARAMIE RIVER VALLEY, NEDERLAND,  
RED FEATHER LAKES, FORDER, KARVAL, KUTCH, AND PUNKIN CENTER  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1600, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200 UNTIL 1600, THEN CHANCE OF  
THUNDERSTORMS.  
MAX TEMPERATURE.....80-90.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........19-23%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 4-8 MPH SHIFTING TO THE  
SOUTHEAST 6-12 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....WEST WINDS 4-8 MPH SHIFTING TO THE  
SOUTHEAST 4-13 MPH IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......9000-10000 FT AGL UNTIL 1200, THEN 13000-14000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1500, THEN EAST AROUND 10  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....50-60.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........70-80%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTH WINDS 5-9 MPH SHIFTING TO THE  
SOUTHWEST 4-8 MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 5-9 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......8500-9500 FT AGL UNTIL 2100, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN  
NORTHWEST UNTIL 0300, THEN LIGHT.  
SMOKE DISPERSAL.....GOOD UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1400, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER  
0900.  
MAX TEMPERATURE.....75-85.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........25-33%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-8 MPH SHIFTING TO THE  
NORTH 4-13 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 4-8 MPH SHIFTING TO THE  
NORTH 4-13 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL UNTIL 1100, THEN 11000-12000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN WEST AROUND 10 MPH  
UNTIL 1400, THEN NORTH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE LOWER 50S. NORTHEAST WINDS 5-8 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE UPPER 70S. SOUTHEAST WINDS 6-12 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE LOWER 50S. HIGHS AROUND 80. SOUTH WINDS 5-9 MPH.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 50S. HIGHS IN THE UPPER 70S. SOUTH WINDS 5-9 MPH.  
 

 
 
COZ216-202330-  
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  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1300, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200 UNTIL  
1600, THEN CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....74-84.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........19-23%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 4-7 MPH SHIFTING TO THE EAST  
5-9 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
EAST 4-8 MPH IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL UNTIL 1200, THEN 11500-12500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1600, THEN EAST AROUND 10  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0100, THEN PARTLY  
CLOUDY(50-60%) UNTIL 0500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....49-57.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........61-71%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 5-11 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 5-11 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTH 15-20 MPH.  
MIXING HEIGHT.......6500-7500 FT AGL UNTIL 2100, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH UNTIL 1900, THEN SOUTHWEST  
UNTIL 0200, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
UNTIL 0900. SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 0900.  
MAX TEMPERATURE.....69-79.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........26-32%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
NORTHEAST 4-13 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
NORTHEAST 4-12 MPH IN THE AFTERNOON.  
HAINES INDEX........3 VERY LOW.  
LAL.................3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL UNTIL 1100, THEN 9000-10000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1000, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN VERY GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS AROUND 50. NORTH WINDS 5-7 MPH.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. HIGHS IN THE  
LOWER 70S. SOUTHEAST WINDS 5-8 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE LOWER 50S. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5-7 MPH.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
LOWER 50S. HIGHS IN THE MID 70S. WEST WINDS 5-7 MPH.  
 

 
 
COZ211-202330-  
JACKSON COUNTY BELOW 9000 FEET-  
INCLUDING GOULD, NORTH PARK, RAND, SPICER, AND WALDEN  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....75-79.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........18-22%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL UNTIL 1100, THEN 13000-14000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1100, THEN WEST AROUND 10  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1500.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 2100, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100.  
MIN TEMPERATURE.....41-45.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........75-85%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 4-8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......9500-10500 FT AGL UNTIL 2000, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2000, THEN LIGHT UNTIL  
2400, THEN SOUTH AROUND 10 MPH UNTIL 0100, THEN  
LIGHT.  
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....71-75.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........22-26%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-6 MPH SHIFTING TO THE NORTH  
4-12 MPH IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1100, THEN 11500-12500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1000, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1300.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE LOWER 40S. EAST WINDS 5-8 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
IN THE MID 70S. SOUTH WINDS 5-7 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE LOWER 40S. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5-7 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE LOWER 40S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS  
5-8 MPH.  
 

 
 
COZ213-202330-  
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  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1600, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....74-84.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........16-24%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL UNTIL 1100, THEN 13000-14000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1500, THEN WEST AROUND 10 MPH  
UNTIL 1600, THEN LIGHT.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100.  
MIN TEMPERATURE.....43-47.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........70-80%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 4-8 MPH.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......9500-10500 FT AGL UNTIL 2000, THEN 2000-3000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2100, THEN SOUTH AROUND 10  
MPH UNTIL 2200, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1300, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER  
0900.  
MAX TEMPERATURE.....71-77.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........21-27%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......WEST WINDS 4-6 MPH SHIFTING TO THE NORTH 4-8  
MPH IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................2 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1100, THEN 12000-13000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1100, THEN NORTH AROUND 10  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100. VERY GOOD AFTER 1400.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 40S. EAST WINDS 5-7 MPH.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. HIGHS IN THE  
MID 70S. SOUTH WINDS 5-7 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 40S. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5-6 MPH.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 40S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 5-7 MPH.  
 

 
 
COZ214-202330-  
CENTRAL AND SOUTHEAST PARK COUNTY-  
INCLUDING ELEVEN MILE CANYON RESERVOIR, FAIRPLAY, GUFFEY,  
HARTSEL, LAKE GEORGE, AND SOUTH PARK  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(35-45%) UNTIL 1300, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200 UNTIL  
1600, THEN CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....70-78.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........19-25%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-6 MPH SHIFTING TO THE  
SOUTHEAST 4-7 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
SOUTHEAST IN THE AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......5500-6500 FT AGL UNTIL 1100, THEN 11500-12500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1700, THEN EAST AROUND 10  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0200, THEN PARTLY  
CLOUDY(50-60%) UNTIL 0500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....43-49.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........76-86%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTH WINDS 4-8 MPH SHIFTING TO THE WEST  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....NORTHEAST WINDS 4-7 MPH SHIFTING TO THE  
WEST 5-8 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......5500-6500 FT AGL UNTIL 2100, THEN 1000-1500 FT  
AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 2300, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0900, THEN PARTLY  
CLOUDY(55-60%) UNTIL 1000, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS UNTIL 0900, THEN  
SLIGHT CHANCE OF THUNDERSTORMS UNTIL 1500, THEN  
CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....66-72.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........31-35%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
NORTHEAST 4-8 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 4-7 MPH SHIFTING TO THE  
NORTHEAST 5-8 MPH IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT UNTIL 1200, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL UNTIL 1100, THEN 10500-11500  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1000, THEN NORTHEAST 10-15  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
MONDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 40S. NORTH WINDS 5-7 MPH.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. HIGHS IN THE  
UPPER 60S. SOUTHEAST WINDS 5-8 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 40S. HIGHS IN THE UPPER 60S. WEST WINDS 5-6 MPH.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 40S. HIGHS IN THE UPPER 60S. WEST WINDS 5-6 MPH.  
 

 
 
COZ217-202330-  
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-  
INCLUDING EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS,  
AND RABBIT EARS PASS  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....66-76.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........21-27%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-8 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 5-11 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL UNTIL 1100, THEN 12000-13000  
FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 0800, THEN LIGHT UNTIL  
1000, THEN WEST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 2100, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....41-47.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........64-74%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTH WINDS 4-7 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 5-11 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2000, THEN SOUTHWEST AROUND  
10 MPH UNTIL 0100, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%). SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....66-74.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........23-27%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 4-7 MPH SHIFTING TO THE NORTH  
4-12 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 5-11 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 15-20 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL UNTIL 1100, THEN 11000-12000  
FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN NORTHWEST 10-15  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN VERY GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS.  
LOWS IN THE LOWER 40S. EAST WINDS 5-8 MPH.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. HIGHS AROUND  
70. SOUTH WINDS 5-7 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 40S. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS 5-8 MPH.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS  
IN THE MID 40S. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS 5-8 MPH.  
 

 
 
COZ218-202330-  
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  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....63-73.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........21-31%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-8 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 4-8 MPH.  
HAINES INDEX........5 MODERATE.  
LAL.................1 UNTIL 1200, THEN 3.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......8000-9000 FT AGL UNTIL 1200, THEN 12500-13500  
FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2200, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....41-47.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........64-74%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTH WINDS 4-12 MPH.  
RIDGES/UPR SLOPES....SOUTH WINDS 6-12 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2500-3500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 0300, THEN LIGHT  
UNTIL 0400, THEN WEST AROUND 10 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 2400, THEN POOR.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1400, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL  
0900. SLIGHT CHANCE OF THUNDERSTORMS AFTER 0900  
UNTIL 1500, THEN CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....62-72.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........24-32%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 4-7 MPH SHIFTING TO THE NORTH  
4-12 MPH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 4-8 MPH SHIFTING TO THE  
NORTH 4-12 MPH IN THE AFTERNOON.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT UNTIL 1200, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......6000-7000 FT AGL UNTIL 1200, THEN 10500-11500  
FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN  
THE LOWER 40S. EAST WINDS 5-8 MPH.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. HIGHS IN THE  
MID 60S. SOUTH WINDS 5-8 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 40S. HIGHS IN THE MID 60S. WEST WINDS 5-8 MPH.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 40S. HIGHS IN THE MID 60S. WEST WINDS 5-9 MPH.  
 

 
 
COZ212-202330-  
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  
444 AM MDT SUN AUG 20 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1000, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200 UNTIL  
1600, THEN CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....61-71.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........22-32%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-8 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 4-8 MPH.  
HAINES INDEX........4 LOW.  
LAL.................1 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT UNTIL 1200, THEN 10 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......11000-12000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY  
CLOUDY(55-60%). SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400.  
MIN TEMPERATURE.....40-48.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........66-76%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-12 MPH.  
RIDGES/UPR SLOPES....SOUTH WINDS 5-9 MPH SHIFTING TO THE  
SOUTHWEST 4-8 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 VERY LOW.  
LAL.................3 UNTIL 2400, THEN 1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......6000-7000 FT AGL UNTIL 2100, THEN 2000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2000, THEN SOUTH AROUND 10  
MPH UNTIL 2200, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0800, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF RAIN SHOWERS UNTIL 0900, THEN  
SLIGHT CHANCE OF THUNDERSTORMS UNTIL 1500, THEN  
CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....58-68.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........29-37%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 4-8 MPH SHIFTING TO THE  
NORTH IN THE AFTERNOON.  
RIDGES/UPR SLOPES....NORTH WINDS 6-12 MPH.  
HAINES INDEX........4 LOW.  
LAL.................3 UNTIL 1200, THEN 4.  
CWR.................0 PERCENT UNTIL 1200, THEN 10 PERCENT.  
15K FT MSL WINDS....NORTH 15-20 MPH.  
MIXING HEIGHT.......10000-11000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD.  
   
MONDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN  
THE LOWER 40S. EAST WINDS 5-7 MPH.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. HIGHS IN THE  
LOWER 60S. SOUTH WINDS 5-8 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
LOWER 40S. HIGHS IN THE MID 60S. WEST WINDS 5-7 MPH.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. LOWS IN THE  
LOWER 40S. HIGHS IN THE LOWER 60S. WEST WINDS 5-8 MPH.  
 

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

 
 
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