FNUS75 KRIW 122314 FWSRIW SPOT FORECAST FOR ALPINE LAKE...BIA WIND RIVER AGENCY NATIONAL WEATHER SERVICE RIVERTON WY 514 PM MDT SUN AUG 12 2012 FORECAST IS BASED ON REQUEST TIME OF 1632 MDT ON AUGUST 12. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...DRY WEATHER FOR TONIGHT AND MOST OF MONDAY. AN ISOLATED SHOWER OR STORM MAY FORM OVER THE HIGHER PEAKS OF THE WIND RIVER MOUNTAINS AFTER 200 PM MONDAY AFTERNOON UNTIL SUNSET MONDAY EVENING. A GUSTY WIND TO 40 MPH MAY OCCUR NEAR ANY SHOWER OR STORM. THE WEATHER PATTERN WILL BE SIMILAR ON TUESDAY WITH RESPECT TO THE ISOLATED SHOWERS OR STORMS IN THE AFTERNOON AND EVENING. THE MAIN CHANGE ON TUESDAY WILL BE A STRONGER WEST WIND OVER THE HIGHER PEAKS WHICH WOULD IMPACT FIRE BEHAVIOR. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...AR .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....AROUND 50. MAX HUMIDITY........50-55 PERCENT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. RIDGE TOP WINDS.....WEST TO NORTHWEST AROUND 10 MPH UNTIL SUNSET... THEN WEST AT 5 TO 10 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......DECREASING TO 1000-2000 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....WEST AT 10 TO 15 MPH. SMOKE DISPERSAL.....DECREASING TO FAIR AFTER SUNSET...THEN POOR AFTER MIDNIGHT. .MONDAY... SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1400. MAX TEMPERATURE.....73-77. MIN HUMIDITY........12-17 PERCENT. 20 FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 1100. THEN WEST 13 TO 18 MPH AFTER 1100 WITH GUSTS TO 25 MPH. GUSTY AND ERRATIC WINDS TO 40 MPH NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....WEST 20 TO 25 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.......INCREASING TO 7500-8500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST AROUND 20 MPH. SMOKE DISPERSAL.....INCREASING TO EXCELLENT BY 1300. .MONDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2200. MIN TEMPERATURE.....49-52. MAX HUMIDITY........44-48 PERCENT. 20 FOOT WINDS.......WEST TO NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 20 MPH UNTIL SUNSET. THEN BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH BY MIDNIGHT. GUSTY AND ERRATIC WINDS TO 40 MPH EXPECTED NEAR THUNDERSTORMS IN THE EVENING. RIDGE TOP WINDS.....WEST 15 TO 20 MPH UNTIL SUNSET. THEN WEST AT 10 TO 15 MPH AFTER SUNSET. LAL.................2 UNTIL 2200...THEN 1. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......DECREASING TO 2500-3500 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....WEST AROUND 15 MPH. SMOKE DISPERSAL.....DECREASING TO FAIR AFTER MIDNIGHT. .TUESDAY... SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....74-77. MIN HUMIDITY........15-20 PERCENT. 20 FOOT WINDS.......WEST WINDS 10 TO 15 MPH UNTIL 1100. THEN WEST WIND AT 15 TO 20 MPH AFTER 1100 WITH GUSTS AROUND 25 MPH. GUSTY AND ERRATIC WINDS TO 40 MPH EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....WEST 15 TO 20 MPH INCREASING TO 20 TO 25 MPH AFTER 1100 WITH GUSTS TO 35 MPH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO 6500-7500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST AROUND 25 MPH. SMOKE DISPERSAL.....INCREASING TO EXCELLENT BY 1200. .FORECAST DAYS 3 THROUGH 5... .TUESDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. WEST WINDS AROUND 15 MPH. .WEDNESDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH. .FRIDAY...PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...ROSS REQUESTED BY...ROBERT JONES REASON FOR REQUEST...WILDFIRE .TAG 20120812.ALPIN.01/RIW