FNUS75 KRIW 241031 FWSRIW SPOT FORECAST FOR UPPER BILLIES RX...BLM RSD NATIONAL WEATHER SERVICE RIVERTON WY 431 AM MDT THU MAY 24 2012 FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON MAY 24. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... CONDITIONS TODAY WILL BE SIMILAR TO WEDNESDAY AT THE BURN SITE. WINDS SHOULD BE SLIGHTLY WEAKER TODAY...EXPECT AROUND ANY AFTERNOON SHOWERS OR THUNDERSTORMS. SHOWER COVERAGE SHOULD BE LESS TODAY. WINDS ARE EXPECTED TO SHIFT TO THE SOUTHEAST TONIGHT AS WARMER AIR WORKS ITS WAY INTO THE REGION. WIDESPREAD SHOWERS WILL DEVELOP FRIDAY AND FRIDAY NIGHT. WET AND UNSETTLED WEATHER WILL CONTINUE THROUGH SUNDAY. A COLD FRONT WILL SURGE EAST ACROSS THE AREA SATURDAY AFTERNOON...BRINGING MORE WET AND COOL CONDITIONS AS WELL AS A BETTER CHANCE OF THUNDERSTORMS. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...WOLCOTT .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS IN THE MORNING...THEN SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....39-42. MIN HUMIDITY........36-39 PERCENT. 20 FOOT WINDS.......WEST WINDS 8 TO 12 MPH WITH GUSTS UP TO 20 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....WEST 15 TO 20 MPH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.10 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-3500 FT AGL INCREASING TO 7000-8000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 18 TO 22 MPH. SMOKE DISPERSAL.....FAIR BECOMING EXCELLENT IN THE AFTERNOON. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. SCATTERED RAIN OR SNOW SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING...THEN ISOLATED SNOW SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....28-31. MAX HUMIDITY........74-77 PERCENT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. RIDGE TOP WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE SOUTHEAST 10 TO 15 MPH AFTER MIDNIGHT. LAL.................2 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.5 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6500-7500 FT AGL DECREASING TO 2500-3500 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....WEST 13 TO 18 MPH SHIFTING TO THE SOUTHEAST 15 TO 20 MPH AFTER MIDNIGHT. SMOKE DISPERSAL.....VERY GOOD DECREASING TO POOR AFTER MIDNIGHT. .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE MORNING. ISOLATED THUNDERSTORMS THROUGH THE DAY. RAIN SHOWERS LIKELY IN THE AFTERNOON. MAX TEMPERATURE.....48-51. MIN HUMIDITY........38-41 PERCENT. 20 FOOT WINDS.......SOUTHEAST WINDS 13 TO 18 MPH WITH GUSTS UP TO 30 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....SOUTHEAST 20 TO 25 MPH IN THE AFTERNOON. LAL.................2. CHC OF WETTING RAIN.60 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-3500 FT AGL INCREASING TO 5000-6000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 25 TO 30 MPH. SMOKE DISPERSAL.....GOOD TO EXCELLENT. .FORECAST DAYS 3 THROUGH 5... .FRIDAY NIGHT...SHOWERS LIKELY AND ISOLATED THUNDERSTORMS IN THE EVENING...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER 30S. WINDS GENERALLY LESS THAN 10 MPH. .SATURDAY...SHOWERS...SNOW SHOWERS LIKELY AND ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS AROUND 11 MPH. .SUNDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW SHOWERS AND ISOLATED THUNDERSTORMS. LOWS AROUND 30. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 12 MPH. .MEMORIAL DAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...WOLCOTT REQUESTED BY...GREG RESER REASON FOR REQUEST...PRESCRIBED .TAG 20120523.UPPER.01/RIW