FNUS75 KRIW 301337 FWSRIW SPOT FORECAST FOR FONTENELLE...USFS BTF NATIONAL WEATHER SERVICE RIVERTON WY 737 AM MDT MON JUL 30 2012 FORECAST IS BASED ON REQUEST TIME OF 0642 MDT ON JULY 30. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... THE MONSOONAL MOISTURE WILL REMAIN VERY CLOSE BY AND MAY PROVIDE JUST ENOUGH MOISTURE FOR AN ISOLATED AFTERNOON OR EVENING THUNDERSTORM. MOST OF THE STORMS WILL REMAIN TO THE SOUTH BUT THE CLOSE PROXIMITY OF THE MOISTURE PLUME AT LEAST KEEPS A SMALL CHANCE OF SHOWER OR THUNDERSTORM OVER THE FIRE. THE MONSOONAL MOISTURE PLUME WILL SHIFT SLIGHTLY NORTHWARD ON TUESDAY ALLOWING FOR A FEW MORE THUNDERSTORMS TO FORM ACROSS THE AREA. THE MAIN THREAT FROM THESE STORMS WILL BE GUSTY ERRATIC WINDS AND OCCASIONAL CLOUD TO GROUND LIGHTNING. IT WILL CONTINUE WARM DURING THE DAY AND COOL AT NIGHT. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...SKRBAC .TODAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT)...BECOMING PARTLY CLOUDY (40-50 PERCENT) AFTER 1600L. MAX TEMPERATURE.....AROUND 77-79 AT 8200 FEET. MIN HUMIDITY........13-17 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 6-12 MPH...GUSTY AND ERRATIC WINDS ARE POSSIBLE FOR ANY NEARBY SHOWERS OR THUNDERSTORMS. RIDGE TOP WINDS.....SOUTH 5 MPH SHIFTING TO THE SOUTHWEST LATE IN THE AFTERNOON AT 5-10 MPH. LAL.................1 UNTIL 1400 THEN 2. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......7800-8800 FT AGL INCREASING TO 9500-10000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 5 MPH SHIFTING TO THE SOUTHWEST AROUND 10 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR TO VERY GOOD (42000-100000 KNOT-FT). .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) UNTIL 2100L THEN MOSTLY CLEAR (25-35 PERCENT). MIN TEMPERATURE.....41-44. MAX HUMIDITY........86-89 PERCENT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH. LAL.................2 UNTIL 2100L THEN 1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......8000-9000 FT AGL DECREASING TO 4900-5900 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....NORTHWEST 8 TO 12 MPH. SMOKE DISPERSAL.....VERY GOOD (100000 KNOT-FT) DECREASING TO FAIR (58800 KNOT-FT) AFTER MIDNIGHT. .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING PARTLY CLOUDY (45-55 PERCENT). WIDELY SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....75-78. MIN HUMIDITY........18-21 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 6-12 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE WEST AT 10 MPH IN THE AFTERNOON. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.5 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5500-6500 FT AGL INCREASING TO 9300-10300 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTHWEST 9 TO 10 MPH SHIFTING TO THE WEST 12 TO 15 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (57500 KNOT-FT) INCREASING TO VERY GOOD (130500 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .TUESDAY NIGHT...PARTLY CLOUDY. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN SLIGHT CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 40S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY WITH WIDELY SCATTERED SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH. .FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...SKRBAC REQUESTED BY...BENTLEY REASON FOR REQUEST...WILDFIRE .TAG 20120730.FONTE.01/RIW