FNUS75 KRIW 281603 FWSRIW SPOT FORECAST FOR GAMBLES BASIN...BLM WOD NATIONAL WEATHER SERVICE RIVERTON WY 1003 AM MDT SUN APR 28 2013 FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 29. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...ONE MORE WARM FAIRLY TRANQUIL SPRINGLIKE DAY IS IN STORE FOR TODAY BEFORE ANOTHER STRONG PACIFIC TROUGH BRINGS MORE ACTIVE WEATHER TO THE BURN AREA EARLY IN THE WEEK. WEST SOUTHWEST WIND GUSTS AHEAD OF THE APPROACHING STORM WILL BLOW AT SPEEDS OF 60 MPH ON MONDAY. ACCUMULATING SNOW IS EXPECTED TUESDAY. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...LIPSON .TODAY... SKY/WEATHER.........CLOUDY (80-90 PERCENT). ISOLATED RAIN SHOWERS EARLY IN THE MORNING...THEN SCATTERED RAIN SHOWERS AFTER 1100. ISOLATED THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....62 AT 7500 FEET AND 58 AT 8500 FEET. MIN HUMIDITY........21-23 PERCENT. 20 FOOT WINDS.......SOUTHWEST 10 TO 16 MPH WITH HIGHER GUSTS IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR ANY ISOLATED THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....WEST 15 TO 20 MPH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.11 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3300-4300 FT AGL INCREASING TO 5600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 18 TO 25 MPH. SMOKE DISPERSAL.....GOOD TO VERY GOOD (69600-105400 KNOT-FT). .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING PARTLY CLOUDY (45-55 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING. MIN TEMPERATURE.....44. MAX HUMIDITY........55 PERCENT. 20 FOOT WINDS.......NORTHWEST WINDS 8 TO 10 MPH WITH GUSTS TO AROUND 15 MPH EARLY IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH...THEN BECOMING SOUTH 9 TO 13 MPH AND GUSTY AFTER MIDNIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE EVENING. RIDGE TOP WINDS.....WEST AROUND 15 MPH BECOMING EAST AROUND 5 MPH LATE IN THE EVENING...THEN INCREASING TO WEST 15 TO 20 MPH AFTER MIDNIGHT. LAL.................2 UNTIL 2100...THEN 1. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3600-4600 FT AGL DECREASING TO 1700-2400 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....WEST AROUND 21 MPH BECOMING EAST AROUND 10 MPH LATE IN THE EVENING...THEN INCREASING TO WEST 17 TO 24 MPH AFTER MIDNIGHT. SMOKE DISPERSAL.....POOR TO GOOD (23200-61600 KNOT-FT). .MONDAY... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING MOSTLY CLOUDY (60-70 PERCENT). MAX TEMPERATURE.....60-64. MIN HUMIDITY........16-18 PERCENT. 20 FOOT WINDS.......WINDY. WEST SOUTHWEST WINDS 10 TO 13 MPH WITH HIGHER GUSTS INCREASING TO 30 TO 38 MPH WITH GUSTS TO AROUND 60 MPH. RIDGE TOP WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 50 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3300-4300 FT AGL. TRANSPORT WINDS.....WEST 22 TO 24 MPH INCREASING TO AROUND 53 MPH. SMOKE DISPERSAL.....GOOD (71600 KNOT-FT) INCREASING TO EXCELLENT (152500 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .MONDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS...THUNDERSTORMS AND SNOW SHOWERS IN THE EVENING...THEN SCATTERED SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 20S. WEST WINDS AROUND 13 MPH. .TUESDAY...MUCH COLDER. SNOW. LOWS AROUND 13. HIGHS IN THE UPPER 20S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 19. HIGHS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...WARMER. MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...LIPSON REQUESTED BY...RANCE NEIGHBORS REASON FOR REQUEST...PRESCRIBED .TAG 20130429.GAMBL.01/RIW