876  
FNUS55 KCYS 200903  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
203 AM MST MON JAN 20 2025  
 
...EXTREME COLD WARNINGS AND COLD WEATHER ADVISORIES IN EFFECT FOR  
MOST OF SOUTHEAST WYOMING AND ALL OF WESTERN NEBRASKA TODAY THROUGH  
TUESDAY MORNING...  
 
...HIGH WIND WATCHES AND HIGH WIND WARNINGS FOR THE WIND PRONE AREAS  
OF SOUTHEAST WYOMING EARLY TUESDAY MORNING THROUGH WEDNESDAY...  
   
..CENTRAL LARAMIE COUNTY...INCLUDING CHEYENNE
 
ADDED TO THE HIGH  
WIND WATCH FOR TUESDAY AFTERNOON...  
   
DISCUSSION
 
NO FIRE WEATHER CONCERNS THIS WEEK WITH VERY COLD  
TEMPERATURES AND PERIODS OF SNOW, ESPECIALLY FOR THE MOUNTAINS.  
A BRIEF WARMING TREND WILL BEGIN ON TUESDAY WITH FRIDAY EXPECTED  
TO BE THE WARMEST FOR THE WEEK, BUT ANOTHER STRONG COLD FRONT IS  
FORECAST TO PUSH SOUTH ACROSS THE AREA NEXT WEEKEND.  
 
NEZ434-202300-  
PINE RIDGE/NEBRASKA NATIONAL FOREST-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....3 BELOW TO 2 ABOVE ZERO.  
24 HR TREND......11 DEGREES COOLER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 35 MPH.  
MIXING HEIGHT.......2500-4500 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (93300-108700 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....10 BELOW-15 BELOW ZERO.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........64-70 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......200-2000 FT AGL.  
SMOKE DISPERSAL.....POOR (5000-11600 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....32-37.  
24 HR TREND......33 DEGREES WARMER.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......300-2300 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (12700-41100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 15. HIGHS IN THE UPPER 20S. NORTHWEST WINDS AROUND  
20 MPH.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 14. HIGHS IN THE LOWER 30S. NORTHWEST WINDS AROUND 15 MPH.   
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE MID 30S.  
WEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS  
AROUND 13. HIGHS IN THE LOWER 20S.    
SUNDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 7. HIGHS IN THE MID 20S.  
 

 
 
NEZ435-202300-  
BOX BUTTE/SOUTH SIOUX/NIOBRARA RIVER-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....3 BELOW TO 2 ABOVE ZERO.  
24 HR TREND......14 DEGREES COOLER.  
MIN HUMIDITY........33-39 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 35 MPH.  
MIXING HEIGHT.......2200-4200 FT AGL.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (90700-116500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....11 BELOW-16 BELOW ZERO.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........62-68 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......200-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (5400-11900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....31-36.  
24 HR TREND......33 DEGREES WARMER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 25 TO 30 MPH.  
MIXING HEIGHT.......200-1700 FT AGL.  
SMOKE DISPERSAL.....POOR (13200-36600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PARTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE MID 20S.  
NORTHWEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 12. HIGHS AROUND 30.  
NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE UPPER 30S.  
WEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 12. HIGHS IN THE LOWER 20S.    
SUNDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 5. HIGHS IN THE MID 20S.  
 

 
 
NEZ436-202300-  
LOWER NORTH PLATTE RIVER BASIN/SCOTTSBLUFF NATIONAL MONUMENT-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....ZERO TO 5 ABOVE ZERO.  
24 HR TREND......14 DEGREES COOLER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 30 MPH.  
MIXING HEIGHT.......2400-4400 FT AGL.  
SMOKE DISPERSAL.....GOOD (73000-98600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....9 BELOW-14 BELOW ZERO.  
24 HR TREND......5 DEGREES COOLER.  
MAX HUMIDITY........62-68 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......300-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (8300-9900 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1200, THEN MOSTLY CLOUDY UNTIL 1500, THEN  
PARTLY CLOUDY.  
MAX TEMPERATURE.....34-39.  
24 HR TREND......34 DEGREES WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH INCREASING TO AROUND 40 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......400-2400 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (26700-70900 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 14. HIGHS IN THE UPPER 20S. NORTHWEST WINDS AROUND  
20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE LOWER  
30S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE LOWER 40S.  
WEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 14. HIGHS IN THE MID 20S.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
8. HIGHS IN THE UPPER 20S.  
 

 
 
NEZ437-202300-  
LODGEPOLE CREEK/SOUTHERN NEBRASKA PANHANDLE-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....ZERO TO 5 ABOVE ZERO.  
24 HR TREND......14 DEGREES COOLER.  
MIN HUMIDITY........33-39 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH.  
MIXING HEIGHT.......2100-4100 FT AGL.  
SMOKE DISPERSAL.....GOOD (62600-85400 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....8 BELOW-13 BELOW ZERO.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........58-64 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......200-2000 FT AGL.  
SMOKE DISPERSAL.....POOR (8600-11700 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....35-40.  
24 HR TREND......35 DEGREES WARMER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH.  
MIXING HEIGHT.......400-2400 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (21200-53600 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
COLDER. PARTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE  
UPPER 20S. NORTHWEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE LOWER  
30S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 16. HIGHS IN  
THE LOWER 40S. NORTHWEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 14. HIGHS IN THE LOWER 20S.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 7.  
HIGHS IN THE UPPER 20S.  
 

 
 
WYZ417-202300-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....1 BELOW-6 BELOW ZERO.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........43-49 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 40  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......1500-3500 FT AGL.  
SMOKE DISPERSAL.....FAIR (51100-56100 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....7 BELOW-13 BELOW ZERO.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........59-65 PERCENT.  
24 HR TREND......18 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 25 MPH  
INCREASING TO 40 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......200-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (6400-9200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....29-34.  
24 HR TREND......34 DEGREES WARMER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. WEST 20 TO 25 MPH WITH GUSTS TO AROUND  
50 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 30 TO 35 MPH.  
MIXING HEIGHT.......300-1700 FT AGL.  
SMOKE DISPERSAL.....POOR (19100-37900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 13. HIGHS IN THE MID 20S. NORTHWEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 11. HIGHS IN THE UPPER  
20S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 15. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 11. HIGHS AROUND 20.    
SUNDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 4. HIGHS IN THE LOWER 20S.  
 

 
 
WYZ418-202300-  
MIDDLE NORTH PLATTE RIVER BASIN/NIOBRARA AND CONVERSE HIGH PLAINS-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....4 BELOW TO 1 ABOVE ZERO.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........45-51 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......1200-3200 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (34100-46700 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 2400.  
MIN TEMPERATURE.....7 BELOW-13 BELOW ZERO.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 30 MPH  
INCREASING TO 50 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......300-1000 FT AGL.  
SMOKE DISPERSAL.....POOR (8000-10400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY. PATCHY BLOWING  
SNOW.  
MAX TEMPERATURE.....27-35.  
24 HR TREND......35 DEGREES WARMER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......13 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. WEST 20 TO 25 MPH WITH GUSTS TO AROUND  
50 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 30 TO 35 MPH.  
MIXING HEIGHT.......300-1900 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (17900-42800 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PARTLY CLOUDY. LOWS AROUND 10. HIGHS IN THE MID 20S.  
NORTHWEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 9. HIGHS IN THE UPPER 20S.  
NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 15. HIGHS IN THE MID 30S. WEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 10. HIGHS AROUND 19.    
SUNDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 2. HIGHS IN THE LOWER 20S.  
 

 
 
WYZ419-202300-  
NORTH LARAMIE RANGE AND ADJACENT HIGH PLAINS-  
203 AM MST MON JAN 20 2025  
 
...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM  
MST WEDNESDAY...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....2 BELOW-8 BELOW ZERO.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........46-52 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1000-3000 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (22700-53800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 2300  
UNTIL 0300, THEN BLOWING SNOW.  
MIN TEMPERATURE.....5 BELOW-13 BELOW ZERO.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........56-62 PERCENT.  
24 HR TREND......34 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WINDY. WEST AROUND 20 MPH WITH GUSTS TO AROUND  
50 MPH INCREASING TO AROUND 30 MPH WITH GUSTS  
TO AROUND 70 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH INCREASING TO AROUND 40 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......400-1000 FT AGL.  
SMOKE DISPERSAL.....POOR (17300-23500 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY. PATCHY BLOWING  
SNOW. SLIGHT CHANCE OF FLURRIES AFTER 1700.  
MAX TEMPERATURE.....19-29.  
24 HR TREND......32 DEGREES WARMER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. WEST AROUND 35 MPH WITH GUSTS TO AROUND  
75 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 45 TO 50 MPH.  
MIXING HEIGHT.......400-1700 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (33100-54700 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
BREEZY. PATCHY BLOWING SNOW IN THE EVENING. PATCHY  
BLOWING SNOW AFTER MIDNIGHT. PARTLY CLOUDY WITH SLIGHT CHANCE OF  
SNOW SHOWERS. LOWS AROUND 10. HIGHS AROUND 19. WEST WINDS AROUND  
25 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 9. HIGHS IN THE LOWER 20S.  
WEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 18.  
HIGHS IN THE LOWER 30S. WEST WINDS AROUND 20 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY. LOWS  
AROUND 10. HIGHS AROUND 16.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
4. HIGHS AROUND 19.  
 

 
 
WYZ420-202300-  
NORTH LARAMIE VALLEY/SHIRLEY BASIN-  
203 AM MST MON JAN 20 2025  
 
...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM  
MST WEDNESDAY...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....6 BELOW-11 BELOW ZERO.  
24 HR TREND......15 DEGREES COOLER.  
MIN HUMIDITY........52-58 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......600-2600 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (20000-40100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 2300.  
MIN TEMPERATURE.....13 BELOW-21 BELOW ZERO.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........77-83 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......BREEZY. WEST AROUND 15 MPH WITH GUSTS TO AROUND  
35 MPH INCREASING TO AROUND 25 MPH WITH GUSTS  
TO AROUND 55 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH INCREASING TO AROUND 35 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......300-800 FT AGL.  
SMOKE DISPERSAL.....POOR (10700-17000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1200, THEN MOSTLY CLOUDY UNTIL 1500, THEN  
PARTLY CLOUDY. PATCHY BLOWING SNOW.  
MAX TEMPERATURE.....16-22.  
24 HR TREND......24 DEGREES WARMER.  
MIN HUMIDITY........43-49 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. WEST AROUND 30 MPH WITH GUSTS TO AROUND  
60 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 45 TO 50 MPH.  
MIXING HEIGHT.......500-2000 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (36900-71200 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PATCHY BLOWING SNOW IN THE EVENING. PARTLY CLOUDY  
WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS AROUND 4. HIGHS AROUND  
16. WEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 3. HIGHS AROUND 20. WEST  
WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 13.  
HIGHS AROUND 30. WEST WINDS AROUND 15 MPH.    
SATURDAY
 
COLDER. SNOW SHOWERS LIKELY. LOWS AROUND 8. HIGHS  
AROUND 15.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
1 BELOW. HIGHS AROUND 16.  
 

 
 
WYZ421-202300-  
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-  
203 AM MST MON JAN 20 2025  
 
...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH TUESDAY  
AFTERNOON...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....3 BELOW-9 BELOW ZERO.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........51-57 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......500-2500 FT AGL.  
SMOKE DISPERSAL.....POOR (11200-19000 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. PATCHY BLOWING SNOW AFTER 2300.  
MIN TEMPERATURE.....11 BELOW-16 BELOW ZERO.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........64-70 PERCENT.  
24 HR TREND......30 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......BREEZY. SOUTHWEST AROUND 15 MPH WITH GUSTS TO  
AROUND 35 MPH INCREASING TO AROUND 25 MPH WITH  
GUSTS TO AROUND 55 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......300-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (8500-18200 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY. PATCHY BLOWING  
SNOW.  
MAX TEMPERATURE.....14-20.  
24 HR TREND......18 DEGREES WARMER.  
MIN HUMIDITY........48-54 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......WINDY. SOUTHWEST 25 TO 30 MPH WITH GUSTS TO  
AROUND 60 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 35 MPH.  
MIXING HEIGHT.......500-1900 FT AGL.  
SMOKE DISPERSAL.....POOR (28000-38200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PATCHY BLOWING SNOW IN THE EVENING. PARTLY CLOUDY.  
LOWS AROUND 4. HIGHS AROUND 19. WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 3. HIGHS IN THE LOWER 20S.  
WEST WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 16.  
HIGHS AROUND 30. SOUTHWEST WINDS AROUND 15 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY. LOWS  
AROUND 10. HIGHS AROUND 17.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS NEAR  
ZERO. HIGHS AROUND 16.  
 

 
 
WYZ422-202300-  
CENTRAL AND WEST CARBON-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....4 BELOW-9 BELOW ZERO.  
24 HR TREND......15 DEGREES COOLER.  
MIN HUMIDITY........50-56 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 10 TO 15 MPH.  
MIXING HEIGHT.......500-2300 FT AGL.  
SMOKE DISPERSAL.....POOR (7200-19900 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 2400.  
MIN TEMPERATURE.....14 BELOW-19 BELOW ZERO.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......34 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH. GUSTS UP TO 35 MPH  
INCREASING TO 50 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......300-900 FT AGL.  
SMOKE DISPERSAL.....POOR (8800-15200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY. PATCHY BLOWING  
SNOW UNTIL 1400PATCHY BLOWING SNOW AFTER 1400.  
MAX TEMPERATURE.....14-19.  
24 HR TREND......22 DEGREES WARMER.  
MIN HUMIDITY........48-54 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......WINDY. SOUTHWEST 25 TO 30 MPH WITH GUSTS TO  
AROUND 55 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH.  
MIXING HEIGHT.......500-1900 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (28500-50900 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
MOSTLY CLEAR. PATCHY BLOWING SNOW. LOWS AROUND 1.  
HIGHS AROUND 19. WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 1. HIGHS IN THE LOWER 20S.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 15. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 15 MPH.   
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 10. HIGHS AROUND 18.    
SUNDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
NEAR ZERO. HIGHS AROUND 17.  
 

 
 
WYZ423-202300-  
SOUTHWEST CARBON COUNTY-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN SUNNY.  
MAX TEMPERATURE.....4 BELOW TO 1 ABOVE ZERO.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........46-52 PERCENT.  
24 HR TREND......23 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE WEST IN THE  
AFTERNOON.  
MIXING HEIGHT.......900-2900 FT AGL.  
SMOKE DISPERSAL.....POOR (7500-15800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....14 BELOW-22 BELOW ZERO.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........73-79 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 10 TO 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO AROUND 20 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......300-900 FT AGL.  
SMOKE DISPERSAL.....POOR (5800-8300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. PATCHY BLOWING SNOW AFTER 1000  
UNTIL 1300.  
MAX TEMPERATURE.....13-19.  
24 HR TREND......19 DEGREES WARMER.  
MIN HUMIDITY........44-50 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......400-1900 FT AGL.  
SMOKE DISPERSAL.....POOR (13900-26400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 3 BELOW. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS AROUND  
10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 3 BELOW. HIGHS IN THE  
LOWER 20S. SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 10. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.   
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 11. HIGHS IN THE LOWER 20S.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
2. HIGHS AROUND 20.  
 

 
 
WYZ424-202300-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
SLIGHT CHANCE OF SNOW UNTIL 0800.  
MAX TEMPERATURE.....1 BELOW-9 BELOW ZERO.  
24 HR TREND......11 DEGREES COOLER.  
MIN HUMIDITY........38-44 PERCENT.  
24 HR TREND......27 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......1600-3600 FT AGL.  
SMOKE DISPERSAL.....POOR (15000-29500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 0400.  
MIN TEMPERATURE.....14 BELOW-19 BELOW ZERO.  
24 HR TREND......6 DEGREES COOLER.  
MAX HUMIDITY........61-67 PERCENT.  
24 HR TREND......21 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH. GUSTS UP TO 30 MPH  
INCREASING TO 40 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......400-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (7200-9600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1200, THEN MOSTLY CLOUDY UNTIL 1500, THEN  
PARTLY CLOUDY. PATCHY BLOWING SNOW AFTER 1300.  
MAX TEMPERATURE.....14-20.  
24 HR TREND......24 DEGREES WARMER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......300-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (15400-36000 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PATCHY BLOWING SNOW IN THE EVENING. PARTLY CLOUDY  
WITH CHANCE OF SNOW SHOWERS. LOWS AROUND 1 BELOW. HIGHS AROUND  
13. WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 1 BELOW. HIGHS AROUND 18.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 11.  
HIGHS IN THE UPPER 20S. SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. SNOW SHOWERS LIKELY. LOWS AROUND 12. HIGHS  
AROUND 17.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
5. HIGHS AROUND 19.  
 

 
 
WYZ425-202300-  
UPPER NORTH PLATTE RIVER BASIN-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....3 BELOW-8 BELOW ZERO.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........42-48 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
MIXING HEIGHT.......1400-3400 FT AGL.  
SMOKE DISPERSAL.....POOR (9600-27800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....15 BELOW-20 BELOW ZERO.  
24 HR TREND......7 DEGREES COOLER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH. GUSTS UP TO 25 MPH  
INCREASING TO 35 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......700-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (8300-12700 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1200, THEN MOSTLY CLOUDY. PATCHY BLOWING  
SNOW AFTER 1000.  
MAX TEMPERATURE.....20-25.  
24 HR TREND......28 DEGREES WARMER.  
MIN HUMIDITY........35-41 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 35  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......700-2700 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (21200-59200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PATCHY BLOWING SNOW IN THE EVENING. PARTLY CLOUDY.  
LOWS AROUND 2. HIGHS AROUND 18. WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 1. HIGHS IN THE LOWER 20S.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 13. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.   
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 11. HIGHS AROUND 20.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
2. HIGHS IN THE LOWER 20S.  
 

 
 
WYZ426-202300-  
SNOWY RANGE/MEDICINE BOW NF-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....3 BELOW-11 BELOW ZERO.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......27 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1700-3700 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (25300-47400 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF BLOWING SNOW AFTER 2300  
UNTIL 2400, THEN BLOWING SNOW.  
MIN TEMPERATURE.....13 BELOW-19 BELOW ZERO.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........54-60 PERCENT.  
24 HR TREND......24 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST 15 TO 20 MPH. GUSTS UP TO 40 MPH  
INCREASING TO 55 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......400-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (11600-14500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
BLOWING SNOW UNTIL 0900PATCHY BLOWING SNOW  
AFTER 0900. SLIGHT CHANCE OF FLURRIES AFTER  
1700.  
MAX TEMPERATURE.....17-23.  
24 HR TREND......28 DEGREES WARMER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTHWEST AROUND 25 MPH WITH GUSTS TO  
AROUND 60 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH INCREASING TO WEST  
AROUND 40 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......500-2500 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (20400-57300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
SLIGHT CHANCE OF SNOW AND PATCHY BLOWING SNOW.  
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS NEAR ZERO. HIGHS  
AROUND 12. WEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 1 BELOW. HIGHS AROUND 18.  
WEST WINDS AROUND 15 MPH.    
FRIDAY
 
NOT AS COLD. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
LOWS AROUND 11. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS AROUND  
15 MPH.    
SATURDAY
 
COLDER. SNOW SHOWERS LIKELY. LOWS AROUND 9. HIGHS  
AROUND 14.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
1. HIGHS AROUND 18.  
 

 
 
WYZ427-202300-  
NORTH SNOWY RANGE FOOTHILLS-  
203 AM MST MON JAN 20 2025  
 
...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM  
MST WEDNESDAY...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....5 BELOW-10 BELOW ZERO.  
24 HR TREND......14 DEGREES COOLER.  
MIN HUMIDITY........47-53 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......900-2900 FT AGL.  
SMOKE DISPERSAL.....POOR (21900-37700 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 2300  
UNTIL 2400, THEN AREAS OF BLOWING SNOW UNTIL  
0100, THEN BLOWING SNOW.  
MIN TEMPERATURE.....8 BELOW-13 BELOW ZERO.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........54-60 PERCENT.  
24 HR TREND......19 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WINDY. WEST AROUND 20 MPH WITH GUSTS TO AROUND  
50 MPH INCREASING TO SOUTHWEST AROUND 30 MPH  
WITH GUSTS TO AROUND 65 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH INCREASING TO SOUTHWEST  
AROUND 35 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......500-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (15300-24000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1200, THEN MOSTLY CLOUDY UNTIL 1500, THEN  
PARTLY CLOUDY. BLOWING SNOW UNTIL 1300, THEN  
PATCHY BLOWING SNOW.  
MAX TEMPERATURE.....21-26.  
24 HR TREND......30 DEGREES WARMER.  
MIN HUMIDITY........33-39 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. WEST AROUND 35 MPH WITH GUSTS TO AROUND  
65 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 40 MPH INCREASING TO AROUND 50 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......700-2400 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (39300-88200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
BREEZY. PATCHY BLOWING SNOW. PARTLY CLOUDY WITH  
SLIGHT CHANCE OF SNOW SHOWERS. LOWS AROUND 7. HIGHS AROUND 16.  
WEST WINDS AROUND 25 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 6. HIGHS IN THE LOWER 20S.  
WEST WINDS AROUND 15 MPH.    
FRIDAY
 
NOT AS COLD. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 18. HIGHS IN THE LOWER 30S. WEST WINDS  
AROUND 20 MPH.    
SATURDAY
 
COLDER. SNOW SHOWERS LIKELY. LOWS AROUND 12. HIGHS  
AROUND 16.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
3. HIGHS AROUND 18.  
 

 
 
WYZ428-202300-  
SOUTHERN LARAMIE VALLEY-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....1 BELOW-7 BELOW ZERO.  
24 HR TREND......16 DEGREES COOLER.  
MIN HUMIDITY........43-49 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1900-3900 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (29500-64700 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 2300.  
MIN TEMPERATURE.....11 BELOW-16 BELOW ZERO.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........57-63 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST 15 TO 20 MPH. GUSTS UP TO 35 MPH  
INCREASING TO 45 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......400-900 FT AGL.  
SMOKE DISPERSAL.....POOR (9500-13000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
PATCHY BLOWING SNOW.  
MAX TEMPERATURE.....25-30.  
24 HR TREND......34 DEGREES WARMER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. WEST 25 TO 30 MPH WITH GUSTS TO AROUND  
60 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH INCREASING TO AROUND 50 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......400-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (26600 KNOT-FT) INCREASING TO GOOD (81400  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
COLDER. PATCHY BLOWING SNOW. PARTLY CLOUDY WITH  
SLIGHT CHANCE OF SNOW SHOWERS. LOWS AROUND 6. HIGHS AROUND 17.  
WEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 3. HIGHS IN THE MID 20S.  
WEST WINDS AROUND 15 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 15. HIGHS IN THE UPPER 30S. WEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MUCH COLDER. MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY.  
LOWS AROUND 10. HIGHS AROUND 15.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
1. HIGHS IN THE LOWER 20S.  
 

 
 
WYZ429-202300-  
SOUTHERN LARAMIE RANGE-  
203 AM MST MON JAN 20 2025  
 
...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY  
AFTERNOON...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....3 BELOW-9 BELOW ZERO.  
24 HR TREND......15 DEGREES COOLER.  
MIN HUMIDITY........42-48 PERCENT.  
24 HR TREND......22 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH INCREASING TO AROUND 35  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1300-3300 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (38600-76600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 2300  
UNTIL 0100, THEN AREAS OF BLOWING SNOW UNTIL  
0200, THEN BLOWING SNOW.  
MIN TEMPERATURE.....6 BELOW-11 BELOW ZERO.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........48-54 PERCENT.  
24 HR TREND......32 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WINDY. WEST AROUND 20 MPH WITH GUSTS TO AROUND  
45 MPH INCREASING TO AROUND 30 MPH WITH GUSTS  
TO AROUND 60 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH INCREASING TO AROUND 40 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......300-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (17800-17900 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
BLOWING SNOW UNTIL 1100, THEN PATCHY BLOWING  
SNOW.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......32 DEGREES WARMER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. WEST AROUND 35 MPH WITH GUSTS TO AROUND  
65 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 45 TO 50 MPH.  
MIXING HEIGHT.......400-1900 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (25300-63800 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
COLDER, WINDY. PATCHY BLOWING SNOW. PARTLY CLOUDY  
WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS AROUND 8. HIGHS AROUND  
15. WEST WINDS AROUND 30 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS AROUND 6. HIGHS IN THE LOWER 20S.  
WEST WINDS AROUND 20 MPH.    
FRIDAY
 
NOT AS COLD. PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 17. HIGHS IN THE MID 30S. WEST WINDS AROUND  
20 MPH.    
SATURDAY
 
MUCH COLDER. CLOUDY WITH SNOW SHOWERS LIKELY. LOWS  
AROUND 11. HIGHS AROUND 13.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 3.  
HIGHS AROUND 19.  
 

 
 
WYZ430-202300-  
LARAMIE FOOTHILLS AND HIGH PLAINS-  
203 AM MST MON JAN 20 2025  
 
...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY  
AFTERNOON...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....3 BELOW TO 2 ABOVE ZERO.  
24 HR TREND......14 DEGREES COOLER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH INCREASING TO AROUND 35  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1700-3700 FT AGL.  
SMOKE DISPERSAL.....FAIR (41900 KNOT-FT) INCREASING TO GOOD (97000  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY BLOWING SNOW AFTER 0100  
UNTIL 0500, THEN BLOWING SNOW.  
MIN TEMPERATURE.....5 BELOW-10 BELOW ZERO.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........46-52 PERCENT.  
24 HR TREND......39 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST 15 TO 20 MPH. GUSTS UP TO 30 MPH  
INCREASING TO 55 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 25 TO 30 MPH.  
MIXING HEIGHT.......300-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (15000-15900 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
BLOWING SNOW UNTIL 0900AREAS OF BLOWING SNOW  
AFTER 0900 UNTIL 1000, THEN PATCHY BLOWING  
SNOW.  
MAX TEMPERATURE.....31-36.  
24 HR TREND......34 DEGREES WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. WEST AROUND 30 MPH WITH GUSTS TO AROUND  
60 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 45 MPH INCREASING TO AROUND 55 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......400-1900 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (30000-69100 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
COLDER, BREEZY. PATCHY BLOWING SNOW. PARTLY CLOUDY  
WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS AROUND 12. HIGHS IN THE  
LOWER 20S. NORTHWEST WINDS AROUND 25 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS AROUND 10. HIGHS IN THE UPPER 20S.  
NORTHWEST WINDS AROUND 20 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 19. HIGHS IN THE LOWER 40S. WEST WINDS  
AROUND 15 MPH.    
SATURDAY
 
MUCH COLDER. CLOUDY WITH SNOW SHOWERS LIKELY. LOWS  
AROUND 12. HIGHS AROUND 19.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 5.  
HIGHS IN THE MID 20S.  
 

 
 
WYZ431-202300-  
LARAMIE EAST HIGH PLAINS-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....1 BELOW TO 4 ABOVE ZERO.  
24 HR TREND......14 DEGREES COOLER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......1900-3900 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (37500-77300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....7 BELOW-12 BELOW ZERO.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........53-59 PERCENT.  
24 HR TREND......32 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 25 MPH  
INCREASING TO 35 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......300-1500 FT AGL.  
SMOKE DISPERSAL.....POOR (9700-13300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY CLOUDY. PATCHY BLOWING  
SNOW AFTER 0700 UNTIL 1700.  
MAX TEMPERATURE.....34-39.  
24 HR TREND......36 DEGREES WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. WEST 20 TO 25 MPH WITH GUSTS TO AROUND  
50 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH INCREASING TO AROUND 45 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......400-2000 FT AGL.  
SMOKE DISPERSAL.....POOR TO GOOD (26400-65300 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
COLDER, BREEZY. PARTLY CLOUDY WITH SLIGHT CHANCE OF  
SNOW SHOWERS. LOWS AROUND 14. HIGHS IN THE MID 20S. NORTHWEST  
WINDS AROUND 25 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 12. HIGHS IN THE LOWER  
30S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS AROUND 18. HIGHS IN THE LOWER 40S. WEST WINDS  
AROUND 10 MPH.    
SATURDAY
 
MUCH COLDER. CLOUDY WITH SNOW SHOWERS LIKELY. LOWS  
AROUND 13. HIGHS AROUND 20.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 6.  
HIGHS IN THE MID 20S.  
 

 
 
WYZ432-202300-  
BORDEAUX/CHUGWATER/WHEATLAND-  
203 AM MST MON JAN 20 2025  
 
...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM  
MST WEDNESDAY...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....1 BELOW TO 4 ABOVE ZERO.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
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.......1600-3600 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (27300-47400 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....3 BELOW-8 BELOW ZERO.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........47-53 PERCENT.  
24 HR TREND......34 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......BREEZY. WEST AROUND 10 MPH WITH GUSTS TO AROUND  
35 MPH INCREASING TO AROUND 25 MPH WITH GUSTS  
TO AROUND 60 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 35 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......400-1500 FT AGL.  
SMOKE DISPERSAL.....POOR (14800-26600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....32-37.  
24 HR TREND......31 DEGREES WARMER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......WINDY. WEST AROUND 35 MPH WITH GUSTS TO AROUND  
70 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 50 TO 55 MPH.  
MIXING HEIGHT.......700-2000 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD (51800-85300 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PARTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE MID 20S.  
NORTHWEST WINDS AROUND 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 14. HIGHS AROUND 30.  
NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 40S. WEST  
WINDS AROUND 15 MPH.    
SATURDAY
 
MUCH COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW  
SHOWERS. LOWS AROUND 14. HIGHS IN THE LOWER 20S.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
8. HIGHS IN THE MID 20S.  
 

 
 
WYZ433-202300-  
GOSHEN/MIDDLE-LOWER NORTH PLATTE RIVER BASIN-  
203 AM MST MON JAN 20 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....ZERO TO 5 ABOVE ZERO.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......1900-3900 FT AGL.  
SMOKE DISPERSAL.....FAIR (48200-57900 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....8 BELOW-13 BELOW ZERO.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 5 MPH INCREASING TO AROUND 15 MPH  
WITH GUSTS TO AROUND 35 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO AROUND 25 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......300-1300 FT AGL.  
SMOKE DISPERSAL.....POOR (7500-14400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY  
UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....34-39.  
24 HR TREND......34 DEGREES WARMER.  
MIN HUMIDITY........23-29 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. WEST AROUND 25 MPH WITH GUSTS TO AROUND  
50 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 40 TO 45 MPH.  
MIXING HEIGHT.......500-2500 FT AGL.  
SMOKE DISPERSAL.....POOR (37500 KNOT-FT) INCREASING TO GOOD (90700  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
WEDNESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 13. HIGHS IN THE UPPER 20S. NORTHWEST WINDS AROUND  
20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 12. HIGHS IN THE LOWER  
30S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 18. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 10 MPH.    
SATURDAY
 
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.  
LOWS AROUND 13. HIGHS IN THE LOWER 20S.    
SUNDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS AROUND  
6. HIGHS IN THE UPPER 20S.  
 

 
 
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