Wyoming Fire Weather Zone 290

.DISCUSSION...
A WEAK COLD FRONT WILL MOVE ACROSS SOUTHEAST WY AND THE WESTERN NE PANHANDLE TONIGHT. ISOLATED TO WIDELY SCATTERED SHOWERS AND STORMS WILL BE POSSIBLE THROUGH THE AFTN AND EVE WITH GUSTY OUTFLOW WINDS THE PRIMARY HAZARD. COOLER AND DRIER FOR SAT IN THE POST-FRONTAL AIR MASS WITH LITTLE OR NO CHANCE FOR PCPN. THE NEXT CHANCE FOR WETTING RAINS WILL BE FROM SUN NIGHT THROUGH TUE AS A POTENT WEATHER SYSTEM MOVES SLOWLY NORTHEAST ACROSS THE REGION. CRITICAL FIRE WEATHER IS NOT EXPECTED IN THE FORSEEABLE FUTURE. NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL GRASSLAND- 308 PM MDT FRI SEP 19 2014 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2100. MIN TEMPERATURE.....50-55. 24 HR TREND......2 DEGREES COOLER. MAX HUMIDITY........78-84 PERCENT. 24 HR TREND......UNCHANGED. HUMIDITY RECOVERY...GOOD. 20-FOOT WINDS.......NORTH AROUND 10 MPH IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH. LAL.................2 UNTIL 2100...THEN 3 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.5 PERCENT. TRANSPORT WINDS.....NORTH 5 TO 10 MPH. MIXING HEIGHT.......3500-4300 FT AGL DECREASING TO 400 FT AGL AFTER MIDNIGHT. SMOKE DISPERSAL.....POOR (2400-31900 KNOT-FT). HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....74-79. 24 HR TREND......5 DEGREES COOLER. MIN HUMIDITY........27-33 PERCENT. 24 HR TREND......4 PERCENT WETTER. 20-FOOT WINDS.......NORTH UP TO 10 MPH AND GUSTY. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....NORTH 5 TO 10 MPH. MIXING HEIGHT.......3000-3500 FT AGL INCREASING TO 5800-6600 FT AGL IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO FAIR (20200-53800 KNOT-FT). HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY NIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....48-53. 24 HR TREND......2 DEGREES COOLER. MAX HUMIDITY........72-78 PERCENT. 24 HR TREND......3 PERCENT DRIER. HUMIDITY RECOVERY...GOOD. 20-FOOT WINDS.......NORTHEAST AROUND 10 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH. MIXING HEIGHT.......3200-3700 FT AGL DECREASING TO 200-700 FT AGL AFTER MIDNIGHT. SMOKE DISPERSAL.....POOR (2900-31700 KNOT-FT). HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY. MAX TEMPERATURE.....71-76. 24 HR TREND......3 DEGREES COOLER. MIN HUMIDITY........35-41 PERCENT. 24 HR TREND......8 PERCENT WETTER. 20-FOOT WINDS.......SOUTHEAST 10 TO 15 MPH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH. MIXING HEIGHT.......2500-3000 FT AGL INCREASING TO 4800-5600 FT AGL IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO FAIR (22200-58300 KNOT-FT). HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 7... .MONDAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. SOUTH WINDS AROUND 10 MPH. .TUESDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 10 MPH. .WEDNESDAY...MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE LOWER 80S. .FRIDAY...MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE MID 70S.
View Complete Fire Weather Zones

Back to Fire Weather Page

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.