Wyoming Fire Weather Zone 283

.DISCUSSION...
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER ZONES 140...414...415...AND 416)... A WEAK STORM SYSTEM WILL BRING ISOLATED TO WIDELY SCATTERED GUSTY THUNDERSTORMS ACROSS THE ENTIRE DISTRICT MAINLY DURING THE AFTERNOON HOURS TODAY WITH A BREAK EXPECTED THIS EVENING. MORE WIDESPREAD SHOWERS AND STORMS ARE EXPECTED ON SATURDAY...A FEW STRONGER STORMS COULD PRODUCE HAIL AND VERY GUSTY WIND...OTHERWISE...SUSTAINED WEST TO SOUTHWEST WINDS OF 20 TO 30 MPH WILL BE WIDESPREAD ON SATURDAY...ESPECIALLY ACROSS THE SOUTHERN HALF OF THE DISPATCH AREA. ...RAWLINS DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278... AND 279)... IT WILL CONTINUE TO BE WARM AND DRY TODAY WITH ONLY A SLIGHT CHANCE OF AN ISOLATED THUNDERSTORM IN ZONE 278 THIS AFTERNOON. ON SATURDAY...STRONG WEST WINDS ARE EXPECTED WITH MIN RH`S DROPPING INTO THE TEENS TO LOWER 20S INCREASING THE FIRE DANGER. IN ADDITION A COLD FRONT WILL SWEEP EAST ACROSS THE AREA SATURDAY WITH ISOLATED TO WIDELY SCATTERED THUNDERSTORMS...BUT WITH A BETTER CHANCE OF A WETTING RAIN. ...CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276... 282...283...285...286...287...288...AND 289)... A WEAK DISTURBANCE AND ASSOCIATED COLD FRONT WILL MOVE INTO THE NORTHERN PART OF THE DISTRICT THIS MORNING...WITH SHOWERS AND ISOLATED THUNDERSTORMS TAPERING OFF EARLY THIS MORNING...HOWEVER ANOTHER SYSTEM WILL MOVE IN FROM THE WEST LATER THIS AFTERNOON LEADING TO ISOLATED THUNDERSTORM POSSIBILITY ACROSS THE ENTIRE DISTRICT THIS AFTERNOON...WITH GUSTY WIND NEAR STORMS. SHOWERS AND STORMS WILL BECOME MORE WIDESPREAD ON SATURDAY WITH A BETTER CHANCE OF A WETTING RAIN AND INCREASED LIGHTNING ACTIVITY ACROSS THE DISPATCH AREA. ...CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 280...281... 285...289...AND 300)... A WEAK DISTURBANCE AND ASSOCIATED COLD FRONT WILL MOVE INTO THE NORTHERN PART OF THE DISTRICT THIS MORNING...KEEPING A FEW SHOWERS AND STORMS AROUND THROUGH NOON. ANOTHER SYSTEM WILL MOVE IN FROM THE WEST LATER THIS AFTERNOON...LEADING TO MORE ISOLATED THUNDERSTORM POTENTIAL ACROSS THE ENTIRE DISTRICT...WITH GUSTY WIND NEAR STORMS. ON SATURDAY...THE WINDS AND THE STORMS WILL BE STRONGER. WINDS WILL BE FAIRLY STEADY OUT OF THE SOUTHWEST AT 20 TO 30 MPH WITH GUSTS TO 50 MPH IN WIND PRONE AREAS OR WITH STORMS...MINIMUM RHS COULD DROP INTO THE UPPER TEENS. THUNDERSTORMS WILL LIKELY BE VERY GUSTY THROUGHOUT THE DAY WITH HAIL POTENTIAL DURING THE AFTERNOON AND TORRENTIAL DOWNPOURS POSSIBLE LATER IN THE AFTERNOON AND EVENING. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... UPPER WIND RIVER BASIN/WIND RIVER BASIN- 252 AM MDT FRI AUG 29 2014 .TODAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL HAIL AFTER 1200. CHANCE OF PRECIPITATION 20 PERCENT. MAX TEMPERATURE.....76-81. 24 HR TREND......2 DEGREES COOLER. MIN HUMIDITY........19-25 PERCENT. 24 HR TREND......3 PERCENT WETTER. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200...THEN NORTH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 0900...THEN NORTH UNTIL 1200...THEN WEST. MIXING HEIGHT.......1000-3500 FT AGL UNTIL 1200...THEN 5500-8000 FT AGL. SMOKE DISPERSAL.....POOR TO FAIR (32000-52000 KNOT-FT). HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....52-57. 24 HR TREND......1 DEGREE WARMER. MAX HUMIDITY........61-67 PERCENT. 24 HR TREND......3 PERCENT DRIER. HUMIDITY RECOVERY...GOOD. 20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 2100...THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400...THEN SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH. RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2100...THEN NORTHWEST UNTIL 2400...THEN SOUTHWEST. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH. MIXING HEIGHT.......4000-6500 FT AGL UNTIL 2400...THEN 0-500 FT AGL. SMOKE DISPERSAL.....FAIR TO GOOD (46000-66000 KNOT-FT) UNTIL 2400...THEN POOR (2000-4000 KNOT-FT). HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL HAIL AFTER 1200. CHANCE OF PRECIPITATION 20 PERCENT. MAX TEMPERATURE.....77-84. 24 HR TREND......2 DEGREES WARMER. MIN HUMIDITY........18-24 PERCENT. 24 HR TREND......1 PERCENT DRIER. 20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 0900...THEN UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200...THEN SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1500...THEN AROUND 25 MPH. LAL.................1 UNTIL 1200...THEN 3. CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200...THEN 20 PERCENT. TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200...THEN 25 TO 30 MPH. MIXING HEIGHT.......1500-4000 FT AGL UNTIL 1200...THEN 5500-8000 FT AGL. SMOKE DISPERSAL.....POOR TO FAIR (38000-58000 KNOT-FT) UNTIL 1200...THEN VERY GOOD TO EXCELLENT (130000-150000 KNOT-FT). HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 7...... .SATURDAY NIGHT...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS. LOWS AROUND 50. WEST WINDS AROUND 10 MPH. .SUNDAY...COOLER. MOSTLY CLEAR WITH ISOLATED SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. NORTHWEST WINDS AROUND 10 MPH. .LABOR DAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WEST WINDS AROUND 10 MPH. .TUESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 10 MPH. .WEDNESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS AROUND 80. .THURSDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
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