225  
FNUS55 KCYS 240850  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
150 AM MST WED FEB 24 2021  
 
HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE  
FRIDAY NIGHT   
DISCUSSION
 
 
WYZ301-242315-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....29-34.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........42-48 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1900-2500 FT AGL INCREASING TO 4000-5100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (23900-53300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....6-11.  
24 HR TREND......5 DEGREES COOLER.  
MAX HUMIDITY........91-97 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH SHIFTING TO THE WEST  
AFTER MIDNIGHT. GUSTS UP TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE WEST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2200-2800 FT AGL DECREASING TO 200 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (2000-17300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....34-40.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......600-2500 FT AGL.  
SMOKE DISPERSAL.....POOR (12000-27300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE MID 30S.  
WEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE LOWER  
30S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 12.  
HIGHS IN THE LOWER 30S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 14. HIGHS IN THE UPPER 30S.    
TUESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW. LOWS AROUND 20.  
HIGHS AROUND 40.  
 

 
 
WYZ302-242315-  
NORTH LARAMIE RANGE/MEDICINE BOW NF-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
CHANCE OF FLURRIES AFTER 1100 UNTIL 1700.  
MAX TEMPERATURE.....22-27.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........46-52 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 10 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. GUSTS UP TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON.  
MIXING HEIGHT.......2000-3000 FT AGL INCREASING TO 3500-5200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (30900-44400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....1-7.  
24 HR TREND......5 DEGREES COOLER.  
MAX HUMIDITY........85-91 PERCENT.  
24 HR TREND......13 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTH AROUND 5 MPH SHIFTING TO THE WEST AFTER  
MIDNIGHT. GUSTS UP TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE WEST AFTER  
MIDNIGHT.  
MIXING HEIGHT.......1900-2900 FT AGL DECREASING TO 100 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (1400-17200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY BLOWING SNOW AFTER 1200.  
MAX TEMPERATURE.....22-30.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........38-44 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH. GUSTS UP TO 30 MPH  
INCREASING TO 40 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......200-1500 FT AGL.  
SMOKE DISPERSAL.....POOR (8600-24300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
BREEZY. PARTLY CLOUDY. PATCHY BLOWING SNOW. LOWS AROUND  
16. HIGHS IN THE MID 20S. WEST WINDS AROUND 25 MPH.    
SATURDAY
 
PARTLY CLOUDY. PATCHY BLOWING SNOW. SLIGHT CHANCE OF  
SNOW. LOWS AROUND 14. HIGHS IN THE MID 20S. WEST WINDS AROUND  
15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 9.  
HIGHS IN THE MID 20S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 13. HIGHS IN THE LOWER 30S.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS AROUND  
20. HIGHS IN THE MID 30S.  
 

 
 
WYZ303-242315-  
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-  
150 AM MST WED FEB 24 2021  
 
...HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE  
FRIDAY NIGHT...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
CHANCE OF FLURRIES AFTER 1100 UNTIL 1700.  
MAX TEMPERATURE.....22-27.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........47-53 PERCENT.  
24 HR TREND......13 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 10 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. GUSTS UP TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 10 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON.  
MIXING HEIGHT.......2400-3600 FT AGL INCREASING TO 4200-6200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (34200-45300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....2 BELOW TO 3 ABOVE ZERO.  
24 HR TREND......6 DEGREES COOLER.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH SHIFTING TO THE  
SOUTHWEST AFTER MIDNIGHT. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE  
SOUTHWEST AFTER MIDNIGHT.  
MIXING HEIGHT.......2200-3600 FT AGL DECREASING TO 100-600 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (1900-21600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY BLOWING SNOW AFTER 1500.  
MAX TEMPERATURE.....21-26.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........44-50 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST AROUND 10 MPH WITH GUSTS TO  
AROUND 40 MPH INCREASING TO AROUND 25 MPH WITH  
GUSTS TO AROUND 55 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 30  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......400-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (12000-36500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
BREEZY. PATCHY BLOWING SNOW. PARTLY CLOUDY WITH SLIGHT  
CHANCE OF SNOW. LOWS AROUND 13. HIGHS IN THE MID 20S. WEST WINDS  
AROUND 25 MPH.    
SATURDAY
 
PATCHY BLOWING SNOW IN THE EVENING. MOSTLY CLOUDY  
WITH SLIGHT CHANCE OF SNOW. LOWS AROUND 13. HIGHS IN THE MID 20S.  
WEST WINDS AROUND 20 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 6.  
HIGHS IN THE MID 20S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 10. HIGHS AROUND 30.    
TUESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW. LOWS AROUND 18.  
HIGHS IN THE MID 30S.  
 

 
 
WYZ304-242315-  
SOUTHWEST CARBON COUNTY-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
CHANCE OF FLURRIES AFTER 1100 UNTIL 1700.  
MAX TEMPERATURE.....24-30.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........48-54 PERCENT.  
24 HR TREND......22 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE NORTH IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE NORTH  
IN THE AFTERNOON.  
MIXING HEIGHT.......3200-3700 FT AGL INCREASING TO 6000-6900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (30100-57600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....2 BELOW TO 3 ABOVE ZERO.  
24 HR TREND......6 DEGREES COOLER.  
MAX HUMIDITY........93-99 PERCENT.  
24 HR TREND......13 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.  
MIXING HEIGHT.......3400-3900 FT AGL DECREASING TO 100 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (1500-35600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....22-27.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........46-52 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH AND GUSTY INCREASING TO  
AROUND 15 MPH WITH HIGHER GUSTS IN THE  
AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 20  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......500-2500 FT AGL.  
SMOKE DISPERSAL.....POOR (7000-24800 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
PARTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 10.  
HIGHS IN THE UPPER 20S. SOUTHWEST WINDS AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 12.  
HIGHS IN THE UPPER 20S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 4.  
HIGHS IN THE MID 20S. WINDS GENERALLY LESS THAN 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 6. HIGHS AROUND 30.    
TUESDAY
 
PARTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE MID 30S.  
 

 
 
WYZ305-242315-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
CHANCE OF FLURRIES AFTER 1100.  
MAX TEMPERATURE.....22-28.  
24 HR TREND......10 DEGREES COOLER.  
MIN HUMIDITY........45-51 PERCENT.  
24 HR TREND......13 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON. GUSTS UP TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON.  
MIXING HEIGHT.......3400-3900 FT AGL INCREASING TO 6000-7200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO GOOD (41000-67300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100, THEN PARTLY CLOUDY.  
CHANCE OF FLURRIES UNTIL 0500.  
MIN TEMPERATURE.....1-6.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........84-90 PERCENT.  
24 HR TREND......15 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....EAST 10 TO 15 MPH.  
MIXING HEIGHT.......3500-4000 FT AGL DECREASING TO 100-600 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (4500-37100 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY BLOWING SNOW AFTER 1600.  
MAX TEMPERATURE.....20-25.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........44-50 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 15 MPH  
INCREASING TO 30 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......900-2900 FT AGL.  
SMOKE DISPERSAL.....POOR (12300-31100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF FLURRIES. PATCHY BLOWING SNOW.  
CHANCE OF SNOW. LOWS AROUND 10. HIGHS IN THE LOWER 20S. SOUTHWEST  
WINDS AROUND 15 MPH.    
SATURDAY
 
PATCHY BLOWING SNOW. CLOUDY WITH SNOW LIKELY. LOWS  
AROUND 12. HIGHS IN THE LOWER 20S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 6. HIGHS IN  
THE MID 20S. WINDS GENERALLY LESS THAN 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 8. HIGHS IN THE LOWER 30S.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS AROUND  
16. HIGHS IN THE MID 30S.  
 

 
 
WYZ306-242315-  
UPPER NORTH PLATTE RIVER BASIN-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF FLURRIES AFTER 1100.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......16 DEGREES COOLER.  
MIN HUMIDITY........47-53 PERCENT.  
24 HR TREND......13 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON.  
MIXING HEIGHT.......3000-3500 FT AGL INCREASING TO 5600-6500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (31200-53200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
CHANCE OF FLURRIES UNTIL 2300.  
MIN TEMPERATURE.....1-6.  
24 HR TREND......5 DEGREES COOLER.  
MAX HUMIDITY........90-96 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......3100-3600 FT AGL DECREASING TO -99-500 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (1900-19800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........42-48 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH WITH HIGHER GUSTS INCREASING  
TO SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND  
35 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1000-3000 FT AGL.  
SMOKE DISPERSAL.....POOR (12100-33800 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
PARTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 12.  
HIGHS IN THE MID 20S. SOUTHWEST WINDS AROUND 20 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 13.  
HIGHS IN THE MID 20S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 6.  
HIGHS IN THE MID 20S. WINDS GENERALLY LESS THAN 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 9. HIGHS IN THE LOWER 30S.    
TUESDAY
 
MOSTLY CLEAR WITH SLIGHT CHANCE OF SNOW. LOWS AROUND  
17. HIGHS IN THE MID 30S.  
 

 
 
WYZ307-242315-  
SNOWY RANGE/MEDICINE BOW NF-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
PATCHY BLOWING SNOW UNTIL 0800. CHANCE OF SNOW  
AFTER 1100.  
MAX TEMPERATURE.....19-25.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........45-51 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 20 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......3100-3600 FT AGL INCREASING TO 5200-6200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO GOOD (59300-70600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
CHANCE OF SNOW UNTIL 2300, THEN CHANCE OF  
FLURRIES UNTIL 0500.  
MIN TEMPERATURE.....1 BELOW TO 4 ABOVE ZERO.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........89-95 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......3000-4200 FT AGL DECREASING TO 400-1800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (11200-38900 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY BLOWING SNOW AFTER 1400.  
MAX TEMPERATURE.....20-25.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........40-46 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH WITH HIGHER GUSTS  
INCREASING TO AROUND 15 MPH WITH GUSTS TO  
AROUND 45 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1000-2800 FT AGL.  
SMOKE DISPERSAL.....POOR (19300-37800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
BREEZY. PARTLY CLOUDY. CHANCE OF FLURRIES. PATCHY  
BLOWING SNOW. CHANCE OF SNOW IN THE AFTERNOON. LOWS AROUND 10.  
HIGHS AROUND 19. WEST WINDS AROUND 25 MPH.    
SATURDAY
 
AREAS OF BLOWING SNOW IN THE EVENING. PATCHY BLOWING  
SNOW AFTER MIDNIGHT. CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 10.  
HIGHS IN THE LOWER 20S. WEST WINDS AROUND 20 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 4. HIGHS IN  
THE LOWER 20S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 7. HIGHS IN THE LOWER 30S.    
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS AROUND  
16. HIGHS IN THE LOWER 30S.  
 

 
 
WYZ308-242315-  
LARAMIE VALLEY/SHIRLEY BASIN-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY CLOUDY. SLIGHT CHANCE  
OF SNOW AFTER 1100 UNTIL 1700, THEN CHANCE OF  
SNOW.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......11 DEGREES COOLER.  
MIN HUMIDITY........45-51 PERCENT.  
24 HR TREND......26 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS SHIFTING  
TO THE NORTH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 10 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON.  
MIXING HEIGHT.......1800-3500 FT AGL INCREASING TO 3700-5700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (33000-45000 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
CHANCE OF SNOW UNTIL 0500.  
MIN TEMPERATURE.....3 BELOW TO 5 ABOVE ZERO.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......1900-3900 FT AGL DECREASING TO 0-1600 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (5500-21200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
PATCHY BLOWING SNOW AFTER 1600.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........42-48 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 35  
MPH INCREASING TO AROUND 20 MPH WITH GUSTS TO  
AROUND 50 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......900-2900 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (16800-40200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
BREEZY. PARTLY CLOUDY WITH CHANCE OF FLURRIES. PATCHY  
BLOWING SNOW. LOWS AROUND 14. HIGHS IN THE MID 20S. WEST WINDS  
AROUND 25 MPH.    
SATURDAY
 
PATCHY BLOWING SNOW. MOSTLY CLOUDY WITH CHANCE OF  
SNOW. LOWS AROUND 12. HIGHS IN THE MID 20S. WEST WINDS AROUND  
20 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 5. HIGHS IN  
THE MID 20S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 8. HIGHS IN THE LOWER 30S.    
TUESDAY
 
MOSTLY CLEAR WITH SLIGHT CHANCE OF SNOW. LOWS AROUND  
16. HIGHS IN THE UPPER 30S.  
 

 
 
WYZ309-242315-  
SOUTH LARAMIE RANGE/MEDICINE BOW NF-  
150 AM MST WED FEB 24 2021  
 
...HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE  
FRIDAY NIGHT...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY CLOUDY. SLIGHT CHANCE  
OF SNOW AFTER 1100 UNTIL 1700, THEN CHANCE OF  
SNOW.  
MAX TEMPERATURE.....24-30.  
24 HR TREND......19 DEGREES COOLER.  
MIN HUMIDITY........39-45 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH HIGHER GUSTS SHIFTING  
TO THE NORTH AND GUSTY IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON.  
MIXING HEIGHT.......2500-3500 FT AGL INCREASING TO 4100-6100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO GOOD (49100-60500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
CHANCE OF SNOW UNTIL 0500.  
MIN TEMPERATURE.....5-11.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........89-95 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT. GUSTS UP TO 20 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2400-4400 FT AGL DECREASING TO 600-2300 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (11500-31400 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
PATCHY BLOWING SNOW AFTER 1600.  
MAX TEMPERATURE.....25-33.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........39-45 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH. GUSTS UP TO 25 MPH  
INCREASING TO 50 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1600-3600 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (27700-46000 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
BREEZY. MOSTLY CLEAR. PATCHY BLOWING SNOW. LOWS AROUND  
18. HIGHS IN THE UPPER 20S. WEST WINDS AROUND 25 MPH.    
SATURDAY
 
PATCHY BLOWING SNOW. PARTLY CLOUDY WITH CHANCE OF  
SNOW. LOWS AROUND 16. HIGHS AROUND 30. WEST WINDS AROUND 20 MPH.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 11. HIGHS IN  
THE UPPER 20S. WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 14. HIGHS IN THE UPPER 30S.    
TUESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER  
20S. HIGHS AROUND 40.  
 

 
 
WYZ310-242315-  
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF FLURRIES AFTER 1100  
UNTIL 1700, THEN SLIGHT CHANCE OF SNOW.  
MAX TEMPERATURE.....30-35.  
24 HR TREND......20 DEGREES COOLER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2000-3000 FT AGL INCREASING TO 3800-5200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (31400-54800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL  
0500.  
MIN TEMPERATURE.....10-15.  
24 HR TREND......3 DEGREES COOLER.  
MAX HUMIDITY........92-98 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTH AROUND 10 MPH SHIFTING TO THE WEST AFTER  
MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE WEST AFTER  
MIDNIGHT.  
MIXING HEIGHT.......1100-3100 FT AGL.  
SMOKE DISPERSAL.....POOR (10300-26300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....33-38.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........33-39 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1800-3800 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (27400-46300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE MID  
30S. WEST WINDS AROUND 20 MPH.    
SATURDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS AROUND  
19. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 14.  
HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 15. HIGHS IN THE LOWER 40S.    
TUESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER  
20S. HIGHS IN THE MID 40S.  
 

 
 
NEZ311-242315-  
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....31-37.  
24 HR TREND......11 DEGREES COOLER.  
MIN HUMIDITY........40-46 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1900-2500 FT AGL INCREASING TO 3800-4900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (26500-54100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....11-16.  
24 HR TREND......6 DEGREES COOLER.  
MAX HUMIDITY........91-97 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......WEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 10 MPH.  
MIXING HEIGHT.......2000-2700 FT AGL DECREASING TO 200 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3600-18400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....37-42.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1500-3500 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (23000-48600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE  
UPPER 30S. WEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE UPPER  
30S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 16.  
HIGHS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH.    
MONDAY
 
CLEAR. LOWS AROUND 16. HIGHS IN THE LOWER 40S.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE MID  
40S.  
 

 
 
NEZ312-242315-  
BOX BUTTE/SOUTH SIOUX-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....32-37.  
24 HR TREND......17 DEGREES COOLER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2100-2600 FT AGL INCREASING TO 4200-5000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (27300-57100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....11-16.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........93-99 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 20 MPH IN  
THE EVENING.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......2300-2800 FT AGL DECREASING TO 300 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (4700-20900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....36-41.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1900-3900 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (27000-61600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE  
UPPER 30S. WEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE UPPER  
30S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 15.  
HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 15. HIGHS IN THE LOWER 40S.    
TUESDAY
 
MOSTLY CLEAR. LOWS AROUND 20. HIGHS IN THE MID 40S.  
 

 
 
NEZ313-242315-  
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-  
150 AM MST WED FEB 24 2021  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....34-39.  
24 HR TREND......17 DEGREES COOLER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2200-2800 FT AGL INCREASING TO 4300-5300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (31400-52700 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2100, THEN MOSTLY CLOUDY  
UNTIL 0300, THEN PARTLY CLOUDY.  
MIN TEMPERATURE.....13-18.  
24 HR TREND......3 DEGREES COOLER.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......2600-3600 FT AGL DECREASING TO 200-2000 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (9600-24300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....35-40.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........40-46 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 20  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2100-4100 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (28600-58000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 20S. HIGHS AROUND 40.  
WEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS AROUND  
40. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 17.  
HIGHS IN THE UPPER 30S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS AROUND 17. HIGHS IN THE LOWER 40S.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE  
UPPER 40S.  
 

 
 
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