FNUS75 KRIW 191511 FWSRIW SPOT FORECAST FOR ANTHONY TIMBERS...BLM WOD NATIONAL WEATHER SERVICE RIVERTON WY 911 AM MDT MON OCT 19 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON OCTOBER 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... AN AREA OF LOW PRESSURE MOVING THROUGH THE DESERT SOUTHWEST WILL CONTINUE TO PUSH A COLD FRONT AND ITS ASSOCIATED SCATTERED SHOWER ACTIVITY OVER THE BURN SITE TODAY. ABOVE FREEZING TEMPERATURES ARE EXPECTED TO KEEP SHOWER ACTIVITY AS RAIN THROUGH THE LATE AFTERNOON. AS THE FRONT MOVES THROUGH DURING THE EARLY EVENING HOURS...WIND WILL SHIFT TO THE NORTH AND RAIN SHOWERS WILL BEGIN TO MIX WITH SNOW. CONTINUED COOLING TEMPERATURES TONIGHT WILL CAUSE ALL SHOWERS WILL CONVERT TO SNOWFALL DURING THE LATE EVENING TO EARLY MORNING HOURS. SNOWFALL WILL CONTINUE THROUGH TUESDAY MORNING BEFORE WEAKENING. COOLER TEMPERATURES OVER THE BURN SITE TUESDAY WILL KEEP SHOWER ACTIVITY AS SNOWFALL THROUGH THE AFTERNOON FOR MUCH OF THE BURN SITE. SOME AREAS CLOSER TO 8000 FT WILL EXPERIENCE SLIGHTLY WARMER TEMPERATURES AND MAY SEE THE POTENTIAL FOR SOME RAIN MIXING WITH THE SNOWFALL AS THE AFTERNOON PROGRESSES. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...BRANHAM .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF RAIN SHOWERS THROUGH THE DAY. ISOLATED THUNDERSTORMS DEVELOPING AFTER 1300. MAX TEMPERATURE.....52-55. MIN HUMIDITY........30-35 PERCENT. 20 FOOT WINDS.......SOUTH 7-10 MPH WITH GUSTS OF 15 TO 20 MPH POSSIBLE. GUSTY AND ERRATIC WIND EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO AROUND 6300 FT AGL BY 1300. TRANSPORT WINDS.....SOUTH 12 TO 17 MPH. SMOKE DISPERSAL.....FAIR TO GOOD (58300-86600 KNOT-FT). .TONIGHT... SKY/WEATHER.........CLOUDY (80-90 PERCENT). CHANCE OF RAIN SHOWERS MIXED WITH SNOW AFTER 1900...THEN SNOW SHOWERS LIKELY AFTER 2400. MIN TEMPERATURE.....28-33. MAX HUMIDITY........86-89 PERCENT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH BECOMING WEST NORTHWEST 8 TO 12 MPH AFTER 0100. RIDGE TOP WINDS.....NORTH 10 TO 15 MPH SHIFTING TO THE WEST AFTER 0100. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......DECREASING TO 800-1000 FT AGL AFTER 0200. TRANSPORT WINDS.....NORTH 10 TO 16 MPH SHIFTING TO THE WEST NORTHWEST 12 TO 16 MPH AFTER 0100. SMOKE DISPERSAL.....POOR (0-24800 KNOT-FT). .TUESDAY... SKY/WEATHER.........CLOUDY (80-90 PERCENT). SNOW SHOWERS LIKELY THROUGH 1300...THEN CHANCE OF SNOW SHOWERS. MAX TEMPERATURE.....36-40. MIN HUMIDITY........77-82 PERCENT. 20 FOOT WINDS.......NORTHWEST 8 TO 12...BECOMING NORTH AFTER 1600. RIDGE TOP WINDS.....NORTH 10 TO 15 MPH. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO 3100 FT AGL BY 1300. TRANSPORT WINDS.....NORTH 13 TO 15 MPH. SMOKE DISPERSAL.....POOR (35300-38400 KNOT-FT). .FORECAST DAYS 3 THROUGH 5... .TUESDAY NIGHT...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN THE EVENING...THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE MID 20S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS AROUND 40. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH. .FRIDAY...PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...BRANHAM REQUESTED BY...ZACKARY IRONS REASON FOR REQUEST...PRESCRIBED .TAG 20091019.ANTHO.02/RIW