Wyoming Fire Weather Zone 306

.DISCUSSION...
ONE MORE HOT DAY FRIDAY BEFORE COOLER TEMPERATURES MOVE INTO THE AREA. AFTERNOON HUMIDITIES ARE QUITE LOW THIS AFTERNOON. FORTUNATELY THOUGH...GUSTY WINDS HAVE BEEN ON THE LIGHT SIDE. GUSTY WINDS WE ARE SEEING SHOULD DECREASE TOWARDS SUNSET. A WEAK COLD FRONT LOOKS TO MOVE INTO THE AREA FROM THE NORTHWEST FRIDAY WITH INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS. BEST COVERAGE OVER THE MOUNTAINS FRIDAY AFTERNOON AND EVENING. COOLER TEMPERATURES AND HIGHER HUMIDITIES ARE EXPECTED BEHIND THE FRONT THROUGH THE WEEKEND. UPPER NORTH PLATTE RIVER BASIN- 355 PM MDT THU SEP 18 2014 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 0300. MIN TEMPERATURE.....48-53. 24 HR TREND......4 DEGREES WARMER. MAX HUMIDITY........57-63 PERCENT. 24 HR TREND......12 PERCENT DRIER. HUMIDITY RECOVERY...FAIR. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. LAL.................1 UNTIL 0300...THEN 2. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....SOUTH AROUND 10 MPH. MIXING HEIGHT.......4800-5700 FT AGL DECREASING TO 200 FT AGL AFTER MIDNIGHT. SMOKE DISPERSAL.....POOR (1200-35600 KNOT-FT). HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN CHANCE OF SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS AFTER 1200. MAX TEMPERATURE.....74-79. 24 HR TREND......5 DEGREES COOLER. MIN HUMIDITY........26-32 PERCENT. 24 HR TREND......11 PERCENT WETTER. 20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH SHIFTING TO THE WEST IN THE AFTERNOON. GUSTS UP TO 20 MPH. LAL.................2 UNTIL 1200...THEN 3. CHC OF WETTING RAIN.10 PERCENT. TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE WEST IN THE AFTERNOON. MIXING HEIGHT.......4400-4900 FT AGL INCREASING TO 8900-9700 FT AGL IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (41100 KNOT-FT) INCREASING TO VERY GOOD (106600 KNOT-FT) IN THE AFTERNOON. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 2400. MIN TEMPERATURE.....43-48. 24 HR TREND......4 DEGREES COOLER. MAX HUMIDITY........90-96 PERCENT. 24 HR TREND......35 PERCENT WETTER. HUMIDITY RECOVERY...EXCELLENT. 20-FOOT WINDS.......SOUTHWEST UP TO 10 MPH IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH. LAL.................3 UNTIL 2100...THEN 2 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH. MIXING HEIGHT.......4700-5200 FT AGL DECREASING TO 300 FT AGL AFTER MIDNIGHT. SMOKE DISPERSAL.....POOR (1100-34400 KNOT-FT). HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....69-74. 24 HR TREND......4 DEGREES COOLER. MIN HUMIDITY........28-34 PERCENT. 24 HR TREND......3 PERCENT WETTER. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE NORTH IN THE AFTERNOON. MIXING HEIGHT.......3200-3700 FT AGL INCREASING TO 6400-7400 FT AGL IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO FAIR (14900-43400 KNOT-FT). HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 7... .SUNDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS GENERALLY LESS THAN 10 MPH. .MONDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 10 MPH. .WEDNESDAY...MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 70. .THURSDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
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