676  
FNUS55 KBOU 222054  
FWFBOU  
 
FIRE WEATHER FORECAST FOR NORTHEAST AND NORTH CENTRAL COLORADO  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
254 PM MDT FRI OCT 22 2021  
   
DISCUSSION...TONIGHT AND SATURDAY
 
DRY CONDITIONS PREVAIL  
TONIGHT THROUGH MOST OF SATURDAY. THERE IS POTENTIAL FOR  
INCREASED WINDS OVER THE HIGHER TERRAIN EARLY SATURDAY INTO  
SATURDAY AFTERNOON WITH GUSTS TO 30 MPH POSSIBLE. HOWEVER,  
INCREASING RELATIVE HUMIDITIES WILL OFFSET THIS REDUCING FIRE  
WEATHER CONDITIONS.  
 
LONG TERM DISCUSSION...SATURDAY NIGHT THROUGH WEDNESDAY...  
MOUNTAIN SNOW SHOULD PICK UP SATURDAY NIGHT AND CONTINUE INTO  
MIDDAY SUNDAY. ONLY AN ISOLATED CHANCE OF RAIN REACHING THE GROUND  
ACROSS THE PLAINS. BY SUNDAY AFTERNOON AFTER THE TROUGH PASSES,  
GUSTY NORTHWEST WINDS TO 30 MPH ARE EXPECTED ACROSS THE PLAINS.  
AHEAD OF THE NEXT STORM SYSTEM, MONDAY WILL BE VERY WARM (HIGHS IN  
THE MID TO UPPER 70S BELOW 6,000 FT), DRY, AND WINDY. SOUTH WINDS  
SHOULD GUST TO 30 MPH ACROSS THE PLAINS WITH RH DROPPING BELOW 20  
PERCENT OTHER THAN THE FAR NORTHEAST CORNER OR COLORADO. THE  
MOUNTAINS VALLEYS WILL ALSO BE WINDY WITH GUSTS TO 30 MPH THOUGH  
RH SHOULD REMAIN ABOVE 25%, BUT SOUTH PARK COULD GET BELOW 20%.  
ANOTHER ROUND OF MOUNTAIN SNOW IS EXPECTED TUESDAY, FOLLOWED BY  
THE POSSIBILITY OF A BORA WIND EVENT. NORTHWEST WINDS POSSIBLY  
GUSTING NEAR 50 MPH COULD OCCUR ACROSS THE PLAINS, WITH HIGHER  
GUSTS IN THE HIGH COUNTRY ABOVE 8,000 FT LATE TUESDAY INTO  
WEDNESDAY.  
 
   
..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...  
 
COZ238-231100-  
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-  
INCLUDING FORT COLLINS, HEREFORD, LOVELAND, NUNN,  
AND WEST PAWNEE GRASSLANDS  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....33-41.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........51-61%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 4-8 MPH UNTIL 2400, THEN NORTH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2000, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....63-67.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........18-24%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......WEST WINDS 4-9 MPH UNTIL 1200, THEN SOUTH 7-13  
MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 25-35 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100, THEN 2000-3000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1200, THEN SOUTHWEST AROUND  
10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.  
MIN TEMPERATURE.....38-42.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........68-78%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 5-13 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 25-35 MPH.  
MIXING HEIGHT.......1000-2000 FT AGL UNTIL 0400, THEN BELOW 1000 FT  
AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 0100, THEN NORTHWEST.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....57-63.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 13-22 MPH WITH GUSTS TO 35 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 0800, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTH WINDS  
5-12 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS IN THE UPPER 60S. SOUTH WINDS  
7-14 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS  
AROUND 40. HIGHS IN THE MID 50S. NORTHWEST WINDS 13-23 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN  
THE UPPER 50S. NORTHWEST WINDS 17-27 MPH.  
 

 
 
COZ239-231100-  
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD  
COUNTY-  
INCLUDING ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%).  
MIN TEMPERATURE.....37-43.  
24 HR TREND......7-10 DEGREES WARMER.  
MAX HUMIDITY........41-51%.  
24 HR TREND......25-35% DRIER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-7 MPH UNTIL 2400, THEN WEST  
4-8 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....64-68.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........19-23%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH UNTIL 1200, THEN EAST  
4-9 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100, THEN 2500-3500 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER 2400.  
MIN TEMPERATURE.....39-43.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........67-77%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-8 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL UNTIL 0500, THEN BELOW 1000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2200, THEN WEST AROUND 10 MPH  
UNTIL 0100, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....60-64.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........24-28%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 5-13 MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN NORTHWEST 10-15  
MPH UNTIL 1700, THEN EAST.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST  
WINDS 4-8 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 70S. SOUTH WINDS  
4-9 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN  
THE MID 40S. HIGHS IN THE MID 50S. WEST WINDS 9-16 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S. WEST  
WINDS 13-20 MPH.  
 

 
 
COZ240-231100-  
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  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....38-42.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........39-49%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......SOUTH WINDS 4-12 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2100, THEN  
SOUTHWEST UNTIL 0500, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....66-70.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........15-19%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-9 MPH UNTIL 1200, THEN  
SOUTHEAST 6-12 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 3500-4500 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0900, THEN SOUTHWEST AROUND  
10 MPH UNTIL 1100, THEN LIGHT UNTIL 1300, THEN  
SOUTHWEST AROUND 10 MPH UNTIL 1700, THEN NORTH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER 2400.  
MIN TEMPERATURE.....39-43.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........70-80%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 4-12 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......2000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL  
UNTIL 2100, THEN 1000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 0300, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0900, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....61-65.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........21-25%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......WEST WINDS 5-12 MPH UNTIL 1200, THEN NORTH 8-14  
MPH. GUSTS UP TO 20 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN NORTHWEST 10-15  
MPH UNTIL 1600, THEN NORTH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 40. SOUTHEAST WINDS  
6-13 MPH.    
MONDAY
 
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 70S. SOUTH  
WINDS 8-15 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN  
THE UPPER 40S. HIGHS AROUND 60. WEST WINDS 10-17 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS AROUND  
60. WEST WINDS 13-20 MPH.  
 

 
 
COZ241-231100-  
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-  
INCLUDING CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....38-42.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........34-44%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......SOUTH WINDS 8-15 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 0100, THEN SOUTHWEST.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....65-69.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........14-18%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 7-15 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MIN TEMPERATURE.....36-40.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........71-81%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......WEST WINDS 7-15 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1500-2000 FT AGL UNTIL 2100, THEN BELOW 1000 FT  
AGL UNTIL 2200, THEN 1000 FT AGL UNTIL 0500,  
THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 2100. NORTHWEST  
AFTER 0300.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0900, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....58-62.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 9-17 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4000-5000 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 1700, THEN NORTHEAST.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. SOUTH WINDS  
9-16 MPH.    
MONDAY
 
WARMER. PARTLY CLOUDY. HIGHS IN THE LOWER 70S. SOUTH  
WINDS 14-24 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE  
UPPER 50S. WEST WINDS 13-23 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER  
50S. NORTHWEST WINDS 14-24 MPH.  
 

 
 
COZ242-231100-  
NORTHEAST WELD COUNTY-  
INCLUDING BRIGGSDALE, EAST PAWNEE GRASSLANDS, GROVER,  
PAWNEE BUTTES, RAYMER, AND STONEHAM  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....31-37.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........64-74%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHEAST WINDS 4-12 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 0300, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200, THEN MOSTLY  
CLOUDY(60-65%).  
MAX TEMPERATURE.....65-69.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........15-19%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......WEST WINDS 4-9 MPH UNTIL 1200, THEN SOUTH 7-13  
MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100, THEN 3000-4000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1000, THEN WEST AROUND 10 MPH  
UNTIL 1100, THEN LIGHT UNTIL 1200, THEN WEST  
AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.  
MIN TEMPERATURE.....38-42.  
24 HR TREND......4-7 DEGREES WARMER.  
MAX HUMIDITY........74-84%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-14 MPH. GUSTS UP TO 20 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL UNTIL 2000, THEN BELOW 1000 FT  
AGL UNTIL 2100, THEN 1000 FT AGL UNTIL 0100,  
THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 2200, THEN NORTH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0900, THEN PARTLY  
CLOUDY(30-40%) UNTIL 1200, THEN SUNNY.  
MAX TEMPERATURE.....59-63.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........21-25%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 13-23 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0900, THEN 20-25 MPH  
UNTIL 1700, THEN NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1200, THEN  
VERY GOOD UNTIL 1600, THEN GOOD.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. SOUTHEAST  
WINDS 7-14 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS AROUND 70. SOUTH WINDS 12-18 MPH.    
TUESDAY
 
COOLER, BREEZY. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS.  
LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S. NORTHWEST WINDS  
15-25 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN  
THE UPPER 50S. NORTHWEST WINDS 19-29 MPH.  
 

 
 
COZ243-231100-  
CENTRAL AND SOUTH WELD COUNTY-  
INCLUDING EATON, FORT LUPTON, GREELEY, AND ROGGEN  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....30-38.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........62-72%.  
24 HR TREND......2-4% DRIER.  
20-FOOT WINDS.......SOUTHEAST WINDS 5-12 MPH UNTIL 2400, THEN  
SOUTHWEST 4-7 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2300, THEN SOUTH  
UNTIL 0100, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....65-69.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........17-23%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......WEST WINDS 4-8 MPH UNTIL 1200, THEN EAST 6-12  
MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100, THEN 2500-3500 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1300, THEN WEST AROUND 10  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER 2400.  
MIN TEMPERATURE.....38-42.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........83-93%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......NORTH WINDS 5-13 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL UNTIL 2100, THEN BELOW 1000 FT  
AGL UNTIL 2400, THEN 1000 FT AGL UNTIL 0100,  
THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH UNTIL 1900, THEN NORTHWEST  
UNTIL 2100, THEN NORTH UNTIL 0400, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....61-65.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 8-16 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN NORTHWEST 10-15  
MPH UNTIL 1700, THEN EAST.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHEAST  
WINDS 6-13 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS IN THE LOWER 70S. SOUTHEAST WINDS  
7-14 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN  
THE LOWER 40S. HIGHS IN THE LOWER 60S. WEST WINDS 12-18 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE  
LOWER 60S. NORTHWEST WINDS 14-24 MPH.  
 

 
 
COZ244-231100-  
MORGAN COUNTY-  
INCLUDING BRUSH, FORT MORGAN, GOODRICH, AND WIGGINS  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....31-35.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........67-77%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHEAST WINDS 5-13 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 0200, THEN SOUTH  
UNTIL 0500, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....68-72.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........16-20%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......WEST WINDS 4-8 MPH UNTIL 1200, THEN SOUTHEAST  
6-12 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100, THEN 2500-3500 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1300, THEN WEST AROUND 10 MPH  
UNTIL 1700, THEN SOUTHEAST.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AFTER  
2400.  
MIN TEMPERATURE.....39-43.  
24 HR TREND......4-7 DEGREES WARMER.  
MAX HUMIDITY........88-98%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......NORTH WINDS 6-13 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 2000, THEN 1000 FT AGL.  
TRANSPORT WINDS.....EAST 10-15 MPH UNTIL 2200, THEN NORTH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0900, THEN PARTLY  
CLOUDY(30-40%) UNTIL 1200, THEN SUNNY.  
MAX TEMPERATURE.....62-66.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 11-19 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 0900, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1200, THEN  
VERY GOOD UNTIL 1600, THEN FAIR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHEAST  
WINDS 7-14 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS IN THE MID 70S. SOUTH WINDS  
13-20 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN  
THE MID 40S. HIGHS IN THE LOWER 60S. WEST WINDS 14-23 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN  
THE LOWER 60S. NORTHWEST WINDS 15-25 MPH.  
 

 
 
COZ245-231100-  
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-  
INCLUDING BENNETT, BYERS, DEER TRAIL, AND LEADER  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....35-41.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........42-52%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTH WINDS 7-14 MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 2200. SOUTHWEST AFTER  
0500.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....68-72.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........13-17%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHWEST WINDS 5-12 MPH UNTIL 1200, THEN EAST  
7-13 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 4000-5000 FT  
AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1100, THEN LIGHT UNTIL  
1200, THEN WEST AROUND 10 MPH UNTIL 1700, THEN  
NORTHEAST.  
SMOKE DISPERSAL.....POOR UNTIL 1500, THEN FAIR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER 2400.  
MIN TEMPERATURE.....38-42.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........85-95%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......NORTH WINDS 7-13 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1500 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL  
UNTIL 2300, THEN 1000 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1900, THEN WEST UNTIL  
2400, THEN NORTH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....61-65.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........23-27%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 9-17 MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 1700, THEN NORTHEAST.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. SOUTHEAST  
WINDS 9-16 MPH.    
MONDAY
 
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 70S. SOUTH  
WINDS 14-23 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN  
THE MID 40S. HIGHS IN THE LOWER 60S. WEST WINDS 14-21 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE  
LOWER 60S. NORTHWEST WINDS 15-24 MPH.  
 

 
 
COZ248-231100-  
LOGAN COUNTY-  
INCLUDING CROOK, MERINO, STERLING, AND PEETZ  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....33-37.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........83-93%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 5-13 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2000, THEN SOUTHEAST AROUND  
10 MPH UNTIL 0500, THEN SOUTH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%).  
MAX TEMPERATURE.....67-71.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........21-31%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHEAST WINDS 5-13 MPH. GUSTS UP TO 20 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 2000-3000 FT  
AGL.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 0700, THEN LIGHT  
UNTIL 1000, THEN SOUTH AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
UNTIL 2400, THEN CHANCE OF RAIN SHOWERS.  
MIN TEMPERATURE.....40-44.  
24 HR TREND......7-10 DEGREES WARMER.  
MAX HUMIDITY........89-99%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......EAST WINDS 5-12 MPH WITH GUSTS TO 20 MPH UNTIL  
2400, THEN NORTH 6-13 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 0500, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 2400. NORTHWEST AFTER  
0200.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1200, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....60-64.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........28-38%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 14-24 MPH WITH GUSTS TO  
35 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 0900, THEN 20-25 MPH  
UNTIL 1700, THEN NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1200, THEN  
VERY GOOD UNTIL 1600, THEN FAIR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHEAST  
WINDS 6-13 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS IN THE UPPER 60S. SOUTH WINDS  
13-23 MPH.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN THE MID  
40S. HIGHS IN THE LOWER 60S. WEST WINDS 13-23 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS  
IN THE LOWER 60S. NORTHWEST WINDS 16-26 MPH.  
 

 
 
COZ249-231100-  
WASHINGTON COUNTY-  
INCLUDING AKRON, COPE, LAST CHANCE, AND OTIS  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....36-40.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........64-74%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 6-13 MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 2000, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 2400, THEN SOUTH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%).  
MAX TEMPERATURE.....68-72.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........17-27%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 7-14 MPH UNTIL 1200, THEN SOUTHEAST  
8-15 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 25-35 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 3500-4500 FT  
AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1700, THEN  
SOUTHEAST.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
UNTIL 2400, THEN CHANCE OF RAIN SHOWERS.  
MIN TEMPERATURE.....40-44.  
24 HR TREND......4-7 DEGREES WARMER.  
MAX HUMIDITY........98-100%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......EAST WINDS 7-14 MPH UNTIL 2400, THEN NORTH.  
GUSTS UP TO 20 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 15-20 MPH UNTIL 2300, THEN AROUND 10  
MPH UNTIL 0100, THEN NORTHEAST UNTIL 0400, THEN  
NORTH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0900, THEN PARTLY  
CLOUDY(30-40%) UNTIL 1200, THEN SUNNY.  
MAX TEMPERATURE.....61-65.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........25-31%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 14-24 MPH WITH GUSTS TO  
35 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 1200, THEN NORTHWEST  
20-25 MPH UNTIL 1600, THEN NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN VERY GOOD UNTIL 1600,  
THEN FAIR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHEAST  
WINDS 8-15 MPH.    
MONDAY
 
BREEZY. PARTLY CLOUDY. HIGHS IN THE LOWER 70S. SOUTH  
WINDS 16-26 MPH.    
TUESDAY
 
BREEZY. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN  
THE MID 40S. HIGHS IN THE MID 60S. WEST WINDS 16-26 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN  
THE LOWER 60S. NORTHWEST WINDS 16-26 MPH.  
 

 
 
COZ250-231100-  
SEDGWICK COUNTY-  
INCLUDING JULESBURG, OVID, AND SEDGWICK  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....34-38.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........100%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 5-13 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2000, THEN SOUTHEAST 10-15  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%).  
MAX TEMPERATURE.....64-68.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........37-43%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 7-14 MPH. GUSTS UP TO 20 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL  
2400, THEN CHANCE OF RAIN SHOWERS.  
MIN TEMPERATURE.....AROUND 43.  
24 HR TREND......4-7 DEGREES WARMER.  
MAX HUMIDITY........100%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHEAST WINDS 6-12 MPH WITH GUSTS TO 20 MPH  
UNTIL 2400, THEN NORTH 6-13 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 20 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 15-25 MPH.  
MIXING HEIGHT.......1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 15-20 MPH UNTIL 2300, THEN AROUND 10  
MPH UNTIL 2400, THEN LIGHT UNTIL 0200, THEN  
NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 1200, THEN MOSTLY  
SUNNY. SLIGHT CHANCE OF THUNDERSTORMS UNTIL  
1200.  
MAX TEMPERATURE.....59-63.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........40-44%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTHWEST WINDS 13-23 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................2 UNTIL 1200, THEN 1.  
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE  
AFTERNOON.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 0900, THEN 20-25 MPH  
UNTIL 1700, THEN NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1500, THEN  
VERY GOOD UNTIL 1600, THEN FAIR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. EAST WINDS  
6-13 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS IN THE MID 60S. SOUTH WINDS  
13-23 MPH.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN THE MID  
40S. HIGHS IN THE LOWER 60S. WEST WINDS 15-22 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS  
IN THE LOWER 60S. NORTHWEST WINDS 17-25 MPH.  
 

 
 
COZ251-231100-  
PHILLIPS COUNTY-  
INCLUDING AMHERST, HAXTUN, AND HOLYOKE  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....34-38.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........100%.  
24 HR TREND......20-25% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 6-12 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2000, THEN SOUTHEAST 10-15  
MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1500, THEN MOSTLY  
CLOUDY(60-65%).  
MAX TEMPERATURE.....64-68.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........37-43%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 7-14 MPH. GUSTS UP TO 20 MPH IN  
THE AFTERNOON.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 1500-2500 FT  
AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
UNTIL 2400, THEN CHANCE OF RAIN SHOWERS.  
MIN TEMPERATURE.....AROUND 43.  
24 HR TREND......4-7 DEGREES WARMER.  
MAX HUMIDITY........100%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......EAST WINDS 7-13 MPH WITH GUSTS TO 20 MPH UNTIL  
2400, THEN NORTH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT INCREASING TO 20 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 15-20 MPH UNTIL 2300, THEN AROUND 10  
MPH UNTIL 0200, THEN NORTH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........CLOUDY UNTIL 0900, THEN PARTLY CLOUDY(50-60%)  
UNTIL 1200, THEN MOSTLY SUNNY. SLIGHT CHANCE OF  
THUNDERSTORMS UNTIL 1200.  
MAX TEMPERATURE.....60-64.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........35-41%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......NORTHWEST WINDS 13-23 MPH WITH GUSTS TO 35 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................2 UNTIL 1200, THEN 1.  
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE  
AFTERNOON.  
15K FT MSL WINDS....NORTHWEST 25-35 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 1100, THEN 20-25 MPH  
UNTIL 1700, THEN NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN VERY GOOD UNTIL 1600,  
THEN FAIR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHEAST  
WINDS 6-13 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS IN THE UPPER 60S. SOUTH WINDS  
14-23 MPH.    
TUESDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN THE MID  
40S. HIGHS IN THE MID 60S. WEST WINDS 16-23 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS  
IN THE LOWER 60S. NORTHWEST WINDS 17-25 MPH.  
 

 
 
COZ246-231100-  
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN  
COUNTY-  
INCLUDING AGATE, HUGO, LIMON, AND MATHESON  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....35-41.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........50-60%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 6-14 MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%).  
MAX TEMPERATURE.....69-73.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........13-17%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......SOUTHWEST WINDS 6-14 MPH. GUSTS UP TO 20 MPH IN  
THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 25-35 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN FAIR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
AFTER 2400.  
MIN TEMPERATURE.....38-42.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........84-94%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 6-13 MPH UNTIL 2400, THEN  
NORTHWEST 8-14 MPH. GUSTS UP TO 20 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL  
UNTIL 2300, THEN 1000 FT AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 2300, THEN WEST UNTIL  
0200, THEN NORTH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....60-64.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........22-26%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......NORTHWEST WINDS 12-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....NORTH 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHEAST  
WINDS 8-15 MPH.    
MONDAY
 
BREEZY. PARTLY CLOUDY. HIGHS AROUND 70. SOUTH WINDS  
16-26 MPH.    
TUESDAY
 
BREEZY. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN  
THE MID 40S. HIGHS IN THE LOWER 60S. WEST WINDS 15-25 MPH.    
WEDNESDAY
 
BREEZY, CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 60S. NORTHWEST WINDS 15-25 MPH.  
 

 
 
COZ247-231100-  
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-  
INCLUDING FORDER, KARVAL, KUTCH, AND PUNKIN CENTER  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....33-37.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........66-76%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 4-9 MPH UNTIL 2400, THEN WEST  
4-7 MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2100, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 0900, THEN MOSTLY  
SUNNY UNTIL 1200, THEN PARTLY CLOUDY(35-45%).  
MAX TEMPERATURE.....70-74.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........13-17%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......WEST WINDS 4-8 MPH UNTIL 1200, THEN SOUTH 7-13  
MPH.  
HAINES INDEX........5 OR MODERATE.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 4000-5000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1200, THEN SOUTHWEST 10-15  
MPH UNTIL 1500, THEN SOUTH.  
SMOKE DISPERSAL.....POOR UNTIL 1500, THEN FAIR UNTIL 1700, THEN  
POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MIN TEMPERATURE.....38-42.  
24 HR TREND......4-7 DEGREES WARMER.  
MAX HUMIDITY........81-91%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 6-10 MPH UNTIL 2400, THEN  
NORTHWEST 7-14 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 20-30 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL  
UNTIL 2200, THEN 1000 FT AGL UNTIL 2300, THEN  
BELOW 1000 FT AGL UNTIL 2400, THEN 1000 FT AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 2300, THEN WEST UNTIL  
0200, THEN NORTHWEST.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....63-67.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........21-25%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......NORTH WINDS 9-16 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 35-45 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....NORTH 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 30S. EAST WINDS  
6-13 MPH.    
MONDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER 70S. SOUTH WINDS  
12-18 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS. LOWS IN  
THE MID 40S. HIGHS IN THE UPPER 60S. WEST WINDS 14-20 MPH.    
WEDNESDAY
 
CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER  
60S. NORTHWEST WINDS 13-20 MPH.  
 

 
 
COZ215-231100-  
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-  
INCLUDING ESTES PARK, GLENDEVEY, LARAMIE RIVER VALLEY, NEDERLAND,  
AND RED FEATHER LAKES  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-35%).  
MIN TEMPERATURE.....32-42.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........38-48%.  
24 HR TREND......7-10% DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-12 MPH. GUSTS UP TO 20  
MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....WEST WINDS 5-13 MPH. GUSTS UP TO 20 MPH  
AFTER MIDNIGHT.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL  
UNTIL 2400, THEN 1000 FT AGL UNTIL 0500, THEN  
BELOW 1000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 2100, THEN WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....52-62.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........21-29%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7-15 MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO 25  
MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......5000-6000 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD UNTIL 1700, THEN  
FAIR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS.  
MIN TEMPERATURE.....30-40.  
24 HR TREND......2-4 DEGREES COOLER.  
MAX HUMIDITY........68-78%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 6-14 MPH WITH GUSTS TO 20 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 7-15 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 25-35 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....45-55.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........28-38%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 12-22 MPH WITH GUSTS TO 30 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 12-22 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 0900. AROUND 15 MPH AFTER  
1600.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST  
WINDS 6-13 MPH.    
MONDAY
 
NOT AS COOL. PARTLY CLOUDY. HIGHS IN THE LOWER 60S.  
SOUTHWEST WINDS 8-15 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 40S. WEST WINDS  
14-24 MPH.    
WEDNESDAY
 
BREEZY. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. WEST WINDS  
19-29 MPH.  
 

 
 
COZ216-231100-  
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  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-35%).  
MIN TEMPERATURE.....32-42.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........32-42%.  
24 HR TREND......4-7% DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5-13 MPH. GUSTS UP TO 20  
MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 5-13 MPH WITH GUSTS TO 20  
MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 2000, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1900, THEN  
SOUTHWEST UNTIL 0200, THEN WEST.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....55-65.  
24 HR TREND......LITTLE CHANGE.  
MIN HUMIDITY........17-25%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6-14 MPH WITH GUSTS TO 20  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO 25  
MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 25-35 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 5000-6000 FT  
AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF RAIN  
SHOWERS. CHANCE OF SNOW SHOWERS AFTER 1900  
UNTIL 2000, THEN SLIGHT CHANCE OF SNOW SHOWERS.  
MIN TEMPERATURE.....31-41.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........62-72%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 5-13 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 5-13 MPH WITH GUSTS TO 20 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-35%) UNTIL 1200, THEN MOSTLY  
SUNNY.  
MAX TEMPERATURE.....50-60.  
24 HR TREND......7-10 DEGREES COOLER.  
MIN HUMIDITY........19-29%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...NORTHWEST WINDS 8-16 MPH WITH GUSTS TO 25  
MPH.  
RIDGES/UPR SLOPES....NORTHWEST WINDS 9-17 MPH WITH GUSTS TO 25  
MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST  
WINDS 6-13 MPH.    
MONDAY
 
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S.  
SOUTHWEST WINDS 10-17 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. CHANCE OF RAIN AND SNOW  
SHOWERS. LOWS AROUND 40. HIGHS IN THE UPPER 40S. WEST WINDS  
13-20 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN  
THE LOWER 30S. HIGHS AROUND 50. WEST WINDS 14-24 MPH.  
 

 
 
COZ211-231100-  
JACKSON COUNTY BELOW 9000 FEET-  
INCLUDING GOULD, NORTH PARK, RAND, SPICER, AND WALDEN  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....20-30.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........62-72%.  
24 HR TREND......25-35% DRIER.  
20-FOOT WINDS.......SOUTH WINDS 5-12 MPH. GUSTS UP TO 20 MPH AFTER  
MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 2000, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....50-54.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........26-30%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10-18 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 5500-6500 FT  
AGL.  
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 1100, THEN SOUTHWEST  
20-25 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1200, THEN  
VERY GOOD UNTIL 1700, THEN GOOD.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY UNTIL 2400. SNOW  
SHOWERS LIKELY.  
MIN TEMPERATURE.....21-29.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........96-99%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 7-15 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 20 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY  
CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY SUNNY.  
SLIGHT CHANCE OF SNOW SHOWERS UNTIL 1200.  
MAX TEMPERATURE.....43-47.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........39-45%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 10-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE  
AFTERNOON.  
15K FT MSL WINDS....WEST 35-45 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 1200, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.  
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 20S. SOUTH WINDS  
9-15 MPH.    
MONDAY
 
NOT AS COOL. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS.  
HIGHS IN THE UPPER 50S. SOUTH WINDS 13-23 MPH.    
TUESDAY
 
COLDER. SNOW SHOWERS AND RAIN SHOWERS LIKELY. LOWS IN  
THE MID 20S. HIGHS IN THE UPPER 30S. WEST WINDS 13-20 MPH.    
WEDNESDAY
 
BREEZY. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE UPPER 30S. WEST WINDS 15-25 MPH.  
 

 
 
COZ213-231100-  
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  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....23-31.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........56-66%.  
24 HR TREND......15-20% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL UNTIL 2000, THEN BELOW 1000 FT  
AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2000, THEN LIGHT.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....51-57.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........24-30%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 4-8 MPH UNTIL 1200, THEN WEST 10-17  
MPH WITH GUSTS TO 25 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 5000-6000 FT  
AGL.  
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1000, THEN SOUTHWEST 10-15  
MPH UNTIL 1200, THEN 20-25 MPH UNTIL 1700, THEN  
WEST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD UNTIL 1600,  
THEN GOOD.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS UNTIL 2400. SNOW  
SHOWERS LIKELY. RAIN SHOWERS LIKELY AFTER 2400.  
MIN TEMPERATURE.....25-31.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........90-100%.  
24 HR TREND......25-35% WETTER.  
20-FOOT WINDS.......WEST WINDS 5-13 MPH. GUSTS UP TO 20 MPH IN THE  
EVENING.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT INCREASING TO 30 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1200, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY SUNNY.  
SLIGHT CHANCE OF RAIN SHOWERS UNTIL 0700.  
SLIGHT CHANCE OF SNOW SHOWERS UNTIL 1200.  
SLIGHT CHANCE OF RAIN SHOWERS AFTER 1100 UNTIL  
1200.  
MAX TEMPERATURE.....44-50.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........32-42%.  
24 HR TREND......7-10% WETTER.  
20-FOOT WINDS.......WEST WINDS 8-16 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE  
AFTERNOON.  
15K FT MSL WINDS....WEST 35-45 MPH.  
MIXING HEIGHT.......3500-4500 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 1400, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH WINDS  
5-12 MPH.    
MONDAY
 
NOT AS COOL. PARTLY CLOUDY. CHANCE OF RAIN SHOWERS.  
HIGHS IN THE LOWER 60S. SOUTHWEST WINDS 9-16 MPH.    
TUESDAY
 
MUCH COLDER. SNOW SHOWERS LIKELY AND CHANCE OF RAIN  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WEST  
WINDS 9-16 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
LOWER 20S. HIGHS IN THE LOWER 40S. WEST WINDS 13-23 MPH.  
 

 
 
COZ214-231100-  
CENTRAL AND SOUTHEAST PARK COUNTY-  
INCLUDING ELEVEN MILE CANYON RESERVOIR, FAIRPLAY, GUFFEY,  
HARTSEL, LAKE GEORGE, AND SOUTH PARK  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....24-32.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........44-54%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-12 MPH. GUSTS UP TO 20  
MPH IN THE EVENING.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 5-13 MPH WITH GUSTS TO 20  
MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 20-30 MPH.  
MIXING HEIGHT.......1500 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....50-58.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........18-24%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO 25  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO 25  
MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 30-40 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 4500-5500 FT  
AGL.  
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 0800, THEN LIGHT UNTIL  
1000, THEN WEST 10-15 MPH UNTIL 1300, THEN  
SOUTHWEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD UNTIL 1500, THEN  
VERY GOOD UNTIL 1600, THEN FAIR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY  
CLOUDY(50-60%). SLIGHT CHANCE OF SNOW SHOWERS.  
MIN TEMPERATURE.....26-32.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........74-84%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 7-15 MPH WITH GUSTS TO 20 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 8-16 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT INCREASING TO 10 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000-2000 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....46-54.  
24 HR TREND......2-4 DEGREES COOLER.  
MIN HUMIDITY........19-27%.  
24 HR TREND......LITTLE CHANGE.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 12-20 MPH WITH GUSTS TO 30 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 12-20 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....NORTHWEST 30-40 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 4000-5000 FT  
AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 0900, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. SOUTHWEST  
WINDS 7-14 MPH.    
MONDAY
 
NOT AS COOL. MOSTLY CLEAR. HIGHS IN THE LOWER 60S.  
SOUTHWEST WINDS 12-22 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN  
THE LOWER 40S. WEST WINDS 13-23 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS IN THE MID 40S. WEST WINDS 14-24 MPH.  
 

 
 
COZ218-231100-  
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  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%).  
MIN TEMPERATURE.....24-34.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........43-53%.  
24 HR TREND......15-20% DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 8-16 MPH WITH GUSTS TO 25  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 9-17 MPH WITH GUSTS TO 30  
MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL UNTIL 2000, THEN BELOW 1000 FT  
AGL UNTIL 2300, THEN 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 0300, THEN 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
CLOUDY.  
MAX TEMPERATURE.....39-49.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........27-37%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10-18 MPH WITH GUSTS TO 30  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-19 MPH WITH GUSTS TO 30  
MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH UNTIL 1100, THEN 20-25 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1500, THEN  
VERY GOOD UNTIL 1700, THEN FAIR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY.  
MIN TEMPERATURE.....22-30.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........81-91%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 9-16 MPH WITH GUSTS TO 25 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 9-17 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT INCREASING TO 40 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 30-40 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0900, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1500, THEN MOSTLY SUNNY.  
SLIGHT CHANCE OF SNOW SHOWERS UNTIL 1200.  
MAX TEMPERATURE.....33-43.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........40-50%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 13-23 MPH WITH GUSTS TO 35 MPH.  
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 14-24 MPH WITH GUSTS TO  
35 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE  
AFTERNOON.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1700, THEN SOUTHWEST  
AROUND 15 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1200, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTHWEST  
WINDS 10-17 MPH.    
MONDAY
 
NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF RAIN  
SHOWERS. HIGHS IN THE LOWER 50S. SOUTHWEST WINDS 13-23 MPH.    
TUESDAY
 
COLDER. SNOW SHOWERS LIKELY. LOWS IN THE UPPER 20S.  
HIGHS IN THE LOWER 30S. WEST WINDS 14-24 MPH.    
WEDNESDAY
 
BREEZY. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
IN THE LOWER 20S. HIGHS IN THE LOWER 30S. WEST WINDS 18-28 MPH.  
 

 
 
COZ212-231100-  
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  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-35%).  
MIN TEMPERATURE.....24-34.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........40-50%.  
24 HR TREND......15-20% DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 7-15 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....WEST WINDS 9-17 MPH. GUSTS UP TO 30 MPH  
AFTER MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL UNTIL 2000, THEN BELOW 1000 FT  
AGL UNTIL 2400, THEN 1000 FT AGL UNTIL 0500,  
THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....WEST 10-15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0900, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER  
1600.  
MAX TEMPERATURE.....41-51.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........23-33%.  
24 HR TREND......2-4% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 9-17 MPH WITH GUSTS TO 30 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 11-19 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........4 OR LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 30-40 MPH.  
MIXING HEIGHT.......5000-6000 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD UNTIL 1700, THEN  
FAIR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). CHANCE OF SNOW SHOWERS.  
MIN TEMPERATURE.....21-31.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........76-86%.  
24 HR TREND......35-50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 9-17 MPH. GUSTS UP TO 30 MPH  
AFTER MIDNIGHT.  
RIDGES/UPR SLOPES....WEST WINDS 12-22 MPH WITH GUSTS TO 30 MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT INCREASING TO 30 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....WEST 25-35 MPH.  
MIXING HEIGHT.......1500-2500 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1500, THEN MOSTLY  
SUNNY. SLIGHT CHANCE OF SNOW SHOWERS UNTIL  
1200.  
MAX TEMPERATURE.....35-45.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........31-41%.  
24 HR TREND......10-15% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 14-24 MPH WITH GUSTS TO 35 MPH.  
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 14-24 MPH WITH GUSTS TO  
40 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE  
AFTERNOON.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......4000-5000 FT AGL.  
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1600, THEN AROUND 15 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1100, THEN GOOD UNTIL 1700, THEN  
POOR.  
   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. SOUTHWEST  
WINDS 9-16 MPH.    
MONDAY
 
NOT AS COOL. PARTLY CLOUDY. HIGHS IN THE MID 50S.  
SOUTHWEST WINDS 13-20 MPH.    
TUESDAY
 
MUCH COLDER. BREEZY. SNOW SHOWERS LIKELY. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 30S. WEST WINDS 15-25 MPH.    
WEDNESDAY
 
BREEZY. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
IN THE LOWER 20S. HIGHS IN THE MID 30S. WEST WINDS 18-28 MPH.  
 

 
 
COZ217-231100-  
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-  
INCLUDING EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS,  
AND RABBIT EARS PASS  
254 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%).  
MIN TEMPERATURE.....24-32.  
24 HR TREND......2-4 DEGREES WARMER.  
MAX HUMIDITY........51-61%.  
24 HR TREND......20-25% DRIER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7-14 MPH WITH GUSTS TO 20  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 10-18 MPH WITH GUSTS TO 30  
MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 30-40 MPH.  
MIXING HEIGHT.......1000 FT AGL UNTIL 0500, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0900, THEN MOSTLY  
CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW SHOWERS  
AFTER 1600.  
MAX TEMPERATURE.....41-51.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........30-40%.  
24 HR TREND......4-7% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 11-21 MPH WITH GUSTS TO 30  
MPH.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-21 MPH WITH GUSTS TO 35  
MPH.  
HAINES INDEX........3 OR VERY LOW.  
LAL.................1.  
CWR.................0 PERCENT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......4500-5500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH UNTIL 1200, THEN 20-25 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD UNTIL 1400, THEN  
VERY GOOD UNTIL 1700, THEN FAIR.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY UNTIL 1900. SNOW  
SHOWERS LIKELY UNTIL 2400, THEN SNOW SHOWERS.  
MIN TEMPERATURE.....23-29.  
24 HR TREND......LITTLE CHANGE.  
MAX HUMIDITY........88-98%.  
24 HR TREND......MORE THAN 50% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 9-17 MPH. GUSTS UP TO 30  
MPH IN THE EVENING.  
RIDGES/UPR SLOPES....SOUTHWEST WINDS 10-18 MPH WITH GUSTS TO 35  
MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................30 PERCENT INCREASING TO 50 PERCENT AFTER  
MIDNIGHT.  
15K FT MSL WINDS....SOUTHWEST 35-45 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY  
CLOUDY(40-50%). SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 1200.  
MAX TEMPERATURE.....35-45.  
24 HR TREND......4-7 DEGREES COOLER.  
MIN HUMIDITY........46-56%.  
24 HR TREND......15-20% WETTER.  
20-FOOT WINDS.......  
VALLEYS/LWR SLOPES...WEST WINDS 12-20 MPH WITH GUSTS TO 30 MPH.  
RIDGES/UPR SLOPES....WEST WINDS 13-23 MPH WITH GUSTS TO 35 MPH.  
HAINES INDEX........2 OR VERY LOW.  
LAL.................1.  
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE  
AFTERNOON.  
15K FT MSL WINDS....WEST 30-40 MPH.  
MIXING HEIGHT.......3000-4000 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR.  
   
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH WINDS  
10-17 MPH.    
MONDAY
 
NOT AS COOL. BREEZY. PARTLY CLOUDY. CHANCE OF RAIN  
SHOWERS. HIGHS IN THE LOWER 50S. SOUTHWEST WINDS 15-25 MPH.    
TUESDAY
 
COLDER. CHANCE OF SNOW SHOWERS AND RAIN SHOWERS  
LIKELY. LOWS IN THE MID 20S. HIGHS IN THE LOWER 30S. WEST WINDS  
13-23 MPH.    
WEDNESDAY
 
BREEZY. MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
IN THE LOWER 20S. HIGHS IN THE MID 30S. WEST WINDS 16-26 MPH.  
 

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

 
 
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