347  
FNUS55 KCYS 201947  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
147 PM MDT TUE MAY 20 2025  
   
DISCUSSION  
 
GUSTY NORTHWEST WINDS WILL CONTINUE THROUGH WEDNESDAY. DROPPING  
RH ALONG I-80 BETWEEN RAWLINS AND CHEYENNE AND POINTS SOUTHWARD MAY  
LEAD TO ELEVATED FIRE WEATHER CONDITIONS WEDNESDAY AFTERNOON WITH  
WINDS CONTINUING AND RH DROPPING TO AROUND 20%, BUT FUELS REMAIN IN  
GREEN UP STATUS. RH BELOW 20% CAN BE EXPECTED FOR PARTS OF SOUTHEAST  
WYOMING AGAIN ON THURSDAY AND FRIDAY BUT WINDS WILL NOT BE AS STRONG.  
EACH DAY WILL BRING A CHANCE FOR ISOLATED TO WIDELY SCATTERED PM  
SHOWERS AND THUNDERSTORMS. COVERAGE IS EXPECTED TO BE FAIRLY SPARSE  
THROUGH FRIDAY, WITH BETTER CHANCES FOR WETTING RAINFALL OVER THE  
WEEKEND.  
 
NEZ434-211030-  
PINE RIDGE/NEBRASKA NATIONAL FOREST-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100. SLIGHT CHANCE OF SHOWERS UNTIL  
2400.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........89-95 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY SHIFTING TO  
THE WEST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1900-3900 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (5600-25000 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........33-39 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......2600-4600 FT AGL INCREASING TO 6700-8700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (53500 KNOT-FT) INCREASING TO EXCELLENT  
(152300 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0400.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT.  
MIXING HEIGHT.......2200-4200 FT AGL DECREASING TO 100-600 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3400-32700 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FROST UNTIL 0700.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 15 MPH  
INCREASING TO 30 MPH IN THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1900-3900 FT AGL INCREASING TO 6000-8000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (17300 KNOT-FT) INCREASING TO GOOD (89800  
KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.  
SOUTHEAST WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS.  
LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 60S. EAST WINDS AROUND  
10 MPH.    
SUNDAY  
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS IN THE  
MID 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
NEZ435-211030-  
BOX BUTTE/SOUTH SIOUX/NIOBRARA RIVER-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS UNTIL 2100SLIGHT CHANCE  
OF SHOWERS AFTER 2100 UNTIL 2400. PATCHY FROST  
AFTER 0300.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........92-98 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2100-4100 FT AGL DECREASING TO 500 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (5100-30100 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0900, THEN PARTLY CLOUDY.  
PATCHY FROST UNTIL 0700. CHANCE OF SHOWERS  
AFTER 1200 UNTIL 1500. SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 1200. SLIGHT CHANCE OF  
SHOWERS AFTER 1500.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL INCREASING TO 7000-8500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (56100 KNOT-FT) INCREASING TO EXCELLENT  
(158400 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY FROST AFTER 0300 UNTIL  
0500, THEN AREAS OF FROST.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........90-96 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTH AROUND 5 MPH IN THE EVENING BECOMING  
LIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH SHIFTING TO THE SOUTHEAST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2700-4700 FT AGL DECREASING TO 100-600 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (3200-41000 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FROST UNTIL 0700.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........27-33 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 15 MPH  
INCREASING TO 25 MPH IN THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1600-3600 FT AGL INCREASING TO 5600-7600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (19500 KNOT-FT) INCREASING TO GOOD (90500  
KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.  
SOUTHEAST WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. MOSTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
EAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
SOUTHEAST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
NEZ436-211030-  
LOWER NORTH PLATTE RIVER BASIN/SCOTTSBLUFF NATIONAL MONUMENT-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS UNTIL 2100, THEN SLIGHT  
CHANCE OF SHOWERS UNTIL 2400.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........87-93 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2300-4300 FT AGL DECREASING TO 500 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (4800-30900 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AFTER  
1200.  
MAX TEMPERATURE.....64-69.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......2900-4900 FT AGL INCREASING TO 7100-9100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (59800 KNOT-FT) INCREASING TO EXCELLENT  
(187700 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........86-92 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......2300-4300 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3300-33800 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FROST UNTIL 0700.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1800-3800 FT AGL INCREASING TO 5800-7800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (25600 KNOT-FT) INCREASING TO VERY GOOD  
(103900 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 80S.  
SOUTHEAST WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.  
EAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.  
NORTHEAST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE  
UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.  
 
 
 
NEZ437-211030-  
LODGEPOLE CREEK/SOUTHERN NEBRASKA PANHANDLE-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100. SLIGHT CHANCE OF SHOWERS UNTIL  
2400.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........83-89 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2800-4800 FT AGL DECREASING TO 500 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (5200-39300 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....65-70.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3200-5200 FT AGL INCREASING TO 7800-9800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (82300 KNOT-FT) INCREASING TO EXCELLENT  
(239600 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. PATCHY FROST AFTER 0500.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH AND GUSTY SHIFTING TO  
THE SOUTHWEST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......2100-4100 FT AGL DECREASING TO 100-600 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3500-30200 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FROST UNTIL 0700.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH AND GUSTY INCREASING TO  
SOUTHEAST AROUND 15 MPH WITH HIGHER GUSTS IN  
THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......1600-3600 FT AGL INCREASING TO 5500-7500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (28400 KNOT-FT) INCREASING TO GOOD (99400  
KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 80S.  
SOUTHEAST WINDS AROUND 15 MPH.    
SATURDAY  
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. EAST  
WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.  
NORTHEAST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE  
UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ417-211030-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100. SLIGHT CHANCE OF SHOWERS UNTIL  
2400. PATCHY FROST AFTER 0500.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........89-95 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 25 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (6000-27300 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........PARTLY CLOUDY. PATCHY FROST UNTIL 0700. SLIGHT  
CHANCE OF SHOWERS UNTIL 1200, THEN CHANCE OF  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........34-40 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......2300-4300 FT AGL INCREASING TO 6500-8500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (45600 KNOT-FT) INCREASING TO VERY GOOD  
(141600 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0400.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........84-90 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE SOUTHEAST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2700-4700 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3000-35900 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
AREAS OF FROST UNTIL 0700.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH AND GUSTY INCREASING TO  
SOUTHEAST AROUND 15 MPH WITH HIGHER GUSTS IN  
THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH INCREASING TO AROUND 20  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1700-3700 FT AGL INCREASING TO 5600-7400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (23800 KNOT-FT) INCREASING TO VERY GOOD  
(100600 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. EAST  
WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. MOSTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 60. EAST  
WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 60. NORTH  
WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE MID 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ418-211030-  
MIDDLE NORTH PLATTE RIVER BASIN/NIOBRARA AND CONVERSE HIGH PLAINS-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2100, THEN SLIGHT CHANCE OF  
SHOWERS UNTIL 2400. PATCHY FROST AFTER 0300  
UNTIL 0500, THEN AREAS OF FROST.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........87-93 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 25 MPH IN  
THE EVENING.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (5000-27700 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL  
1200, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2600-4600 FT AGL INCREASING TO 6600-8600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (48900 KNOT-FT) INCREASING TO EXCELLENT  
(157800 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0300.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........81-87 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......NORTH AROUND 5 MPH SHIFTING TO THE SOUTHEAST  
AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH SHIFTING TO THE SOUTHEAST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2700-4700 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3400-39800 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
AREAS OF FROST UNTIL 0700.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........23-29 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1500-3500 FT AGL INCREASING TO 5400-7400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (25000 KNOT-FT) INCREASING TO GOOD (99000  
KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S.  
SOUTHEAST WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. MOSTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
EAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.  
NORTHWEST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ419-211030-  
NORTH LARAMIE RANGE AND ADJACENT HIGH PLAINS-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS, THUNDERSTORMS  
AND SNOW SHOWERS UNTIL 2100, THEN SLIGHT CHANCE  
OF SHOWERS AND SNOW SHOWERS UNTIL 2400. AREAS  
OF FROST AFTER 2400.  
MIN TEMPERATURE.....31-37.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........78-84 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 10 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......2400-4400 FT AGL DECREASING TO 200-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (6600-38600 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS AFTER  
0900 UNTIL 1200, THEN CHANCE OF SNOW SHOWERS  
UNTIL 1300. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS AFTER 1200 UNTIL 1500.  
MAX TEMPERATURE.....51-61.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......2900-4900 FT AGL INCREASING TO 7700-9700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (68700 KNOT-FT) INCREASING TO EXCELLENT  
(220200 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 2400.  
MIN TEMPERATURE.....32-38.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........69-75 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......NORTH AROUND 5 MPH AND GUSTY SHIFTING TO THE  
SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH SHIFTING TO THE SOUTHEAST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3400-5400 FT AGL DECREASING TO 100-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (3100-47400 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
AREAS OF FROST UNTIL 0700. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....64-72.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 20  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1900-3900 FT AGL INCREASING TO 6800-8800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (25000 KNOT-FT) INCREASING TO VERY GOOD  
(128000 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
SOUTHEAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S.  
NORTHWEST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.    
TUESDAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.  
 
 
 
WYZ420-211030-  
NORTH LARAMIE VALLEY/SHIRLEY BASIN-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 2100,  
THEN SLIGHT CHANCE OF SHOWERS UNTIL 2400. AREAS  
OF FROST AFTER 2400 UNTIL 0200WIDESPREAD FROST  
AFTER 0200.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........78-84 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 10 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......3500-5500 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (71200 KNOT-FT) DECREASING TO POOR (7300  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. WIDESPREAD FROST UNTIL 0700.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 0900 UNTIL  
1100. SLIGHT CHANCE OF SHOWERS AFTER 0900 UNTIL  
1500. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200  
UNTIL 1500.  
MAX TEMPERATURE.....55-60.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........18-24 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......2800-4800 FT AGL INCREASING TO 7900-9900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (72100 KNOT-FT) INCREASING TO EXCELLENT  
(242100 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0100 UNTIL  
0300, THEN WIDESPREAD FROST.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........73-79 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......NORTH AROUND 10 MPH AND GUSTY SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......3600-5600 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....FAIR (57800 KNOT-FT) DECREASING TO POOR (4600  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
WIDESPREAD FROST UNTIL 0700, THEN AREAS OF  
FROST UNTIL 0800. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH AND GUSTY.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST  
AROUND 20 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1600-3600 FT AGL INCREASING TO 7300-9300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (18300 KNOT-FT) INCREASING TO EXCELLENT  
(169000 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
SOUTHWEST WINDS AROUND 5 MPH.    
SATURDAY  
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. SOUTH  
WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS AROUND 60.  
NORTHWEST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ421-211030-  
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2100, THEN SLIGHT CHANCE OF  
SHOWERS UNTIL 2400. AREAS OF FROST AFTER 0100.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........73-79 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 40 MPH  
DECREASING TO AROUND 5 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3400-5400 FT AGL DECREASING TO 200-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (71600 KNOT-FT) DECREASING TO POOR (4700  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. WIDESPREAD FROST UNTIL 0700.  
SLIGHT CHANCE OF SHOWERS AFTER 1200 UNTIL 1500.  
MAX TEMPERATURE.....54-62.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO AROUND 25 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......2800-4800 FT AGL INCREASING TO 7600-9600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (50600 KNOT-FT) INCREASING TO EXCELLENT  
(204000 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........57-63 PERCENT.  
24 HR TREND......19 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY SHIFTING TO  
THE EAST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE EAST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3500-5500 FT AGL DECREASING TO 100-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (2700-51500 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....68-76.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 15 MPH  
INCREASING TO 25 MPH IN THE AFTERNOON.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1500-3500 FT AGL INCREASING TO 8100-10100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (20900 KNOT-FT) INCREASING TO EXCELLENT  
(206500 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN  
THE MID 40S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND  
5 MPH.    
SATURDAY  
PARTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
NORTHWEST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.  
NORTHWEST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ422-211030-  
CENTRAL AND WEST CARBON-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2100. SLIGHT CHANCE OF  
SHOWERS AFTER 2400 UNTIL 0300.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........72-78 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 40 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3900-5900 FT AGL DECREASING TO 300-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (96900 KNOT-FT) DECREASING TO POOR (6900  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......WEST 15 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......2600-4600 FT AGL INCREASING TO 7700-9700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (69000 KNOT-FT) INCREASING TO EXCELLENT  
(241000 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........49-55 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY SHIFTING TO THE  
SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH BECOMING SOUTH AROUND 5 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3500-5500 FT AGL DECREASING TO 100-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....FAIR (58000 KNOT-FT) DECREASING TO POOR (3000  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........16 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHEAST AROUND 5 MPH AND GUSTY INCREASING TO  
SOUTHWEST AROUND 15 MPH WITH HIGHER GUSTS IN  
THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2600-4600 FT AGL INCREASING TO 8800-10800 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (23500 KNOT-FT) INCREASING TO EXCELLENT  
(236100 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID  
70S. SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WEST  
WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S.  
NORTHWEST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS AROUND 70.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ423-211030-  
SOUTHWEST CARBON COUNTY-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100SLIGHT CHANCE OF SHOWERSSLIGHT CHANCE  
OF SNOW SHOWERS AFTER 0500. AREAS OF FROST  
AFTER 0300 UNTIL 0400, THEN WIDESPREAD FROST.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........79-85 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH  
BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH BECOMING WEST AROUND 10  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......3700-5700 FT AGL DECREASING TO 300-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (75600 KNOT-FT) DECREASING TO POOR (4200  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. WIDESPREAD FROST UNTIL 0700, THEN  
AREAS OF FROST UNTIL 0800.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........15 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......2800-4800 FT AGL INCREASING TO 7400-9400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (64900 KNOT-FT) INCREASING TO EXCELLENT  
(220700 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........42-48 PERCENT.  
24 HR TREND......37 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY SHIFTING TO  
THE EAST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH BECOMING EAST AROUND 5  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......3200-5200 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (2500-51300 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....74-79.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........15 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST AROUND 5 MPH AND GUSTY INCREASING TO  
SOUTHWEST AROUND 15 MPH WITH HIGHER GUSTS IN  
THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2200-4200 FT AGL INCREASING TO 8700-10700 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (24400 KNOT-FT) INCREASING TO EXCELLENT  
(242700 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE  
UPPER 70S. SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.  
NORTH WINDS AROUND 5 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE  
LOWER 70S.    
TUESDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
70S.  
 
 
 
WYZ424-211030-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS, THUNDERSTORMS AND SNOW  
SHOWERS UNTIL 2100, THEN SLIGHT CHANCE OF  
SHOWERS AND SNOW SHOWERS UNTIL 2400, THEN  
CHANCE OF SNOW SHOWERS AND SHOWERS.  
MIN TEMPERATURE.....29-34.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........79-85 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH  
DECREASING TO AROUND 5 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2800-4800 FT AGL DECREASING TO 100-1000 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....FAIR (56400 KNOT-FT) DECREASING TO POOR (4300  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
WIDESPREAD FROST UNTIL 0700.  
MAX TEMPERATURE.....49-59.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......18 PERCENT DRIER.  
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 35 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......2400-4400 FT AGL INCREASING TO 6400-8400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (69100 KNOT-FT) INCREASING TO EXCELLENT  
(217400 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........39-45 PERCENT.  
24 HR TREND......47 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY SHIFTING TO THE  
SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH BECOMING SOUTH AROUND 5 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2900-4900 FT AGL DECREASING TO 0-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (1900-46400 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....62-72.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH IN THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3600-5600 FT AGL INCREASING TO 10200-12200 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (37100 KNOT-FT) INCREASING TO EXCELLENT  
(221900 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER  
60S. SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. SOUTHWEST  
WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS, THUNDERSTORMS AND  
SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WEST  
WINDS AROUND 5 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.  
 
 
 
WYZ425-211030-  
UPPER NORTH PLATTE RIVER BASIN-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL  
2400CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF  
SHOWERS AFTER 2400.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........74-80 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH  
BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3900-5900 FT AGL DECREASING TO 600-1200 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (85500 KNOT-FT) DECREASING TO POOR (7900  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......WEST 15 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 35 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......3100-5100 FT AGL INCREASING TO 8000-10000 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (90900 KNOT-FT) INCREASING TO EXCELLENT  
(271800 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........44-50 PERCENT.  
24 HR TREND......28 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY SHIFTING TO THE  
SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT.  
MIXING HEIGHT.......3600-5600 FT AGL DECREASING TO 400-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (60500 KNOT-FT) DECREASING TO POOR (4400  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....71-76.  
24 HR TREND......15 DEGREES WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH AND GUSTY SHIFTING TO THE  
SOUTHWEST WITH HIGHER GUSTS IN THE AFTERNOON.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO WEST AROUND  
25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3800-5800 FT AGL INCREASING TO 10300-12300 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (32100 KNOT-FT) INCREASING TO EXCELLENT  
(242500 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE  
LOWER 70S. SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. WEST WINDS AROUND  
5 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ426-211030-  
SNOWY RANGE/MEDICINE BOW NF-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100, THEN PARTLY CLOUDY.  
CHANCE OF THUNDERSTORMS, SNOW SHOWERS AND  
SHOWERS UNTIL 2400, THEN SLIGHT CHANCE OF  
SHOWERS AND SNOW SHOWERS.  
MIN TEMPERATURE.....26-32.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........78-84 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 45 MPH  
DECREASING TO 30 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3000-5000 FT AGL DECREASING TO 100-1200 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (68900 KNOT-FT) DECREASING TO POOR (8400  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....46-56.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......17 PERCENT DRIER.  
20-FOOT WINDS.......WEST 15 TO 20 MPH WITH GUSTS TO AROUND 40 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH INCREASING TO AROUND 40 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......2600-4600 FT AGL INCREASING TO 6700-8700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (92700 KNOT-FT) INCREASING TO EXCELLENT  
(264500 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....27-33.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........48-54 PERCENT.  
24 HR TREND......37 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH GUSTS TO AROUND 35 MPH  
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH BECOMING SOUTHWEST AROUND 10  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......3100-5100 FT AGL DECREASING TO 0-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....FAIR (56800 KNOT-FT) DECREASING TO POOR (2400  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....60-70.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 15 MPH  
INCREASING TO 25 MPH IN THE AFTERNOON.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3300-5300 FT AGL INCREASING TO 9800-11800 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (40300 KNOT-FT) INCREASING TO EXCELLENT  
(223000 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE MID 60S. SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS, THUNDERSTORMS  
AND SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS  
AROUND 60. SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS, THUNDERSTORMS AND  
SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. WEST  
WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS, SNOW SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN  
THE LOWER 60S.    
TUESDAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.  
 
 
 
WYZ427-211030-  
NORTH SNOWY RANGE FOOTHILLS-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 2100,  
THEN SLIGHT CHANCE OF SHOWERS UNTIL 2400.  
CHANCE OF SNOW SHOWERS AFTER 2300 UNTIL 2400.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........68-74 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 40 MPH  
DECREASING TO 30 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......3800-5800 FT AGL DECREASING TO 500-1100 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (96900 KNOT-FT) DECREASING TO POOR (12200  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....56-61.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........17 PERCENT.  
24 HR TREND......13 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 30 TO 35 MPH.  
MIXING HEIGHT.......2900-4900 FT AGL INCREASING TO 8100-10100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (102600 KNOT-FT) INCREASING TO  
EXCELLENT (299200 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........47-53 PERCENT.  
24 HR TREND......20 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH GUSTS TO AROUND 35 MPH  
SHIFTING TO THE SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH BECOMING SOUTH AROUND 10 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3600-5600 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (69900 KNOT-FT) DECREASING TO POOR (3900  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......16 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH AND GUSTY SHIFTING TO THE  
SOUTHWEST WITH HIGHER GUSTS IN THE AFTERNOON.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO WEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2900-4900 FT AGL INCREASING TO 9100-11100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (30000 KNOT-FT) INCREASING TO EXCELLENT  
(229200 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
MID 40S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 40. HIGHS IN THE LOWER 60S. WEST WINDS AROUND 10 MPH.   
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ428-211030-  
SOUTHERN LARAMIE VALLEY-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2100, THEN SLIGHT CHANCE OF  
SHOWERS UNTIL 2400.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........68-74 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 40 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......3600-5600 FT AGL DECREASING TO 600-1100 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (91000 KNOT-FT) DECREASING TO POOR (10800  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........16 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......WEST 15 TO 20 MPH WITH GUSTS TO AROUND 40 MPH.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH INCREASING TO AROUND 40 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......3300-5300 FT AGL INCREASING TO 8200-10200 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (110200 KNOT-FT) INCREASING TO  
EXCELLENT (318800 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. WIDESPREAD FROST AFTER 0400.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........62-68 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH GUSTS TO AROUND 35 MPH  
SHIFTING TO THE SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT.  
MIXING HEIGHT.......3600-5600 FT AGL DECREASING TO 400-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (74100 KNOT-FT) DECREASING TO POOR (4800  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
WIDESPREAD FROST UNTIL 0700. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH AND GUSTY.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO WEST  
AROUND 20 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3000-5000 FT AGL INCREASING TO 8000-10000 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (30000 KNOT-FT) INCREASING TO EXCELLENT  
(172200 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. NORTHWEST WINDS  
AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.    
TUESDAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS AROUND 70.  
 
 
 
WYZ429-211030-  
SOUTHERN LARAMIE RANGE-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS, SNOW SHOWERS  
AND SLIGHT CHANCE OF THUNDERSTORMS UNTIL 2100,  
THEN SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS  
UNTIL 2400.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........66-72 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 45 MPH  
DECREASING TO 30 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......3400-5400 FT AGL DECREASING TO 200-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (86600 KNOT-FT) DECREASING TO POOR (8000  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....53-59.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........17 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 45 MPH.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH INCREASING TO AROUND 40 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......3000-5000 FT AGL INCREASING TO 8000-10000 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (108200 KNOT-FT) INCREASING TO  
EXCELLENT (324600 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0300.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 35  
MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH BECOMING SOUTH AROUND  
10 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......3400-5400 FT AGL DECREASING TO 0-500 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (73900 KNOT-FT) DECREASING TO POOR (2500  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
WIDESPREAD FROST UNTIL 0700. CHANCE OF SHOWERS  
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH AND GUSTY.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......2200-4200 FT AGL INCREASING TO 5600-7600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (25500 KNOT-FT) INCREASING TO GOOD (95300  
KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 40. HIGHS IN THE UPPER 50S. NORTHWEST WINDS AROUND  
10 MPH.    
MEMORIAL DAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.    
TUESDAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 40. HIGHS IN THE MID 60S.  
 
 
 
WYZ430-211030-  
LARAMIE FOOTHILLS AND HIGH PLAINS-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100. SLIGHT CHANCE OF SHOWERS UNTIL  
2400.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........70-76 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 40 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......4000-6000 FT AGL DECREASING TO 400-1100 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (73200 KNOT-FT) DECREASING TO POOR (9000  
KNOT-FT) AFTER MIDNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....62-67.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH INCREASING TO AROUND 35  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3500-5500 FT AGL INCREASING TO 9300-11300 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (111700 KNOT-FT) INCREASING TO  
EXCELLENT (317400 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0300.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........77-83 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......NORTH AROUND 10 MPH AND GUSTY SHIFTING TO THE  
SOUTHWEST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT.  
MIXING HEIGHT.......4000-6000 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (67500 KNOT-FT) DECREASING TO POOR (3800  
KNOT-FT) AFTER MIDNIGHT.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
AREAS OF FROST UNTIL 0700. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....70-75.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL INCREASING TO 5700-7700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (35200 KNOT-FT) INCREASING TO GOOD (93200  
KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.  
SOUTHEAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. NORTHWEST WINDS  
AROUND 10 MPH.    
MEMORIAL DAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.    
TUESDAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 40S. HIGHS AROUND 70.  
 
 
 
WYZ431-211030-  
LARAMIE EAST HIGH PLAINS-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2100. SLIGHT CHANCE OF SHOWERS UNTIL  
2400.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........77-83 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......3700-5700 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (6400-46900 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....64-69.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH.  
MIXING HEIGHT.......3500-5500 FT AGL INCREASING TO 9000-11000 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (105300 KNOT-FT) INCREASING TO  
EXCELLENT (289600 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0400.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........83-89 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH AND GUSTY SHIFTING TO  
THE SOUTH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......2900-4900 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (3300-48000 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. AREAS OF FROST UNTIL 0700.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......11 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH 10 TO 15 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......1700-3700 FT AGL INCREASING TO 6100-8100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (40600 KNOT-FT) INCREASING TO GOOD (95700  
KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
MOSTLY CLEAR WITH CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.  
SOUTH WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.  
EAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
NORTHWEST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ432-211030-  
BORDEAUX/CHUGWATER/WHEATLAND-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 2100,  
THEN SLIGHT CHANCE OF SHOWERS UNTIL 2400.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........77-83 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 5 TO 10 MPH. GUSTS UP TO 25 MPH DECREASING  
TO 15 MPH AFTER MIDNIGHT.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2100-4100 FT AGL DECREASING TO 400-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (5500-28500 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AFTER 0900 UNTIL 1500.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200 UNTIL  
1500.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......3200-5200 FT AGL INCREASING TO 8200-10200 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (76500 KNOT-FT) INCREASING TO EXCELLENT  
(207000 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF FROST AFTER 0500.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........80-86 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH AND GUSTY SHIFTING TO  
THE SOUTHWEST AFTER MIDNIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE  
SOUTHEAST AFTER MIDNIGHT.  
MIXING HEIGHT.......2700-4700 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3200-34700 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
AREAS OF FROST UNTIL 0700. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1700-3700 FT AGL INCREASING TO 6300-8300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (28400 KNOT-FT) INCREASING TO VERY GOOD  
(106200 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.  
SOUTHEAST WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.  
EAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.  
NORTHWEST WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.  
 
 
 
WYZ433-211030-  
GOSHEN/MIDDLE-LOWER NORTH PLATTE RIVER BASIN-  
147 PM MDT TUE MAY 20 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS UNTIL 2100, THEN SLIGHT  
CHANCE OF SHOWERS UNTIL 2400.  
MIN TEMPERATURE.....AROUND 38.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........85-91 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH. GUSTS UP TO 25 MPH IN  
THE EVENING.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2000-4000 FT AGL DECREASING TO 500 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (4500-27200 KNOT-FT).  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY SUNNY. SLIGHT CHANCE OF  
SHOWERS. SLIGHT CHANCE OF THUNDERSTORMS AFTER  
1200 UNTIL 1500.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........30 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......3000-5000 FT AGL INCREASING TO 7800-9800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (61400 KNOT-FT) INCREASING TO EXCELLENT  
(183400 KNOT-FT) IN THE AFTERNOON.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........86-92 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH IN THE EVENING BECOMING  
LIGHT.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH SHIFTING TO THE SOUTHEAST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2600-4600 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (3100-35400 KNOT-FT).  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FROST UNTIL 0700.  
MAX TEMPERATURE.....74-79.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........27 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH WITH HIGHER GUSTS.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1800-3800 FT AGL INCREASING TO 6200-8200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (28600 KNOT-FT) INCREASING TO VERY GOOD  
(103900 KNOT-FT) IN THE AFTERNOON.  
   
FORECAST DAYS 3 THROUGH 7  
   
FRIDAY  
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 80S. EAST  
WINDS AROUND 10 MPH.    
SATURDAY  
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.  
EAST WINDS AROUND 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. NORTH  
WINDS AROUND 10 MPH.    
MEMORIAL DAY  
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.    
TUESDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S.  
 
 
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