FNUS75 KRIW 111125 FWSRIW SPOT FORECAST FOR WEST SLOPE RX...BLM WOD NATIONAL WEATHER SERVICE RIVERTON WY 525 AM MDT WED APR 11 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 11. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN APPROACHING STORM SYSTEM WILL RESULT IN INCREASING SOUTH TO SOUTHEAST WINDS ACROSS THE AREA TODAY ALONG WITH SCATTERED SHOWERS TONIGHT ALONG WITH ISOLATED EVENING THUNDERSTORMS WITH GUSTY ERRATIC WINDS. A COOL...UNSTABLE ATMOSPHERE WILL REMAIN OVER THE AREA THURSDAY WITH SCATTERED MAINLY AFTERNOON SHOWERS EXPECTED. WINDS WILL GENERALLY BE SOUTH TO SOUTHEAST IN THE MORNING BUT SHIFT TO THE SOUTHWEST IN THE AFTERNOON. MINIMUM RH'S WILL LIKELY DROP INTO THE TEENS THIS AFTERNOON AND THEN BE 10 TO 15 PERCENT HIGHER ON THURSDAY. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...SKRBAC .TODAY... SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT). MAX TEMPERATURE.....74-77. MIN HUMIDITY........17-20 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTH 10-15 WITH GUSTS TO 25 MPH IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH 5 TO 10 MPH INCREASING TO AROUND 15 MPH LATE IN THE AFTERNOON. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1500-2500 FT AGL INCREASING TO 7000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 8-12 MPH INCREASING TO SOUTH 17-23 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....POOR (20000 KNOT-FT) INCREASING TO VERY GOOD (140000 KNOT-FT) IN THE AFTERNOON. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). ISOLATED THUNDERSTORMS IN THE EVENING. SCATTERED RAIN SHOWERS THROUGH THE NIGHT. MIN TEMPERATURE.....42-45. MAX HUMIDITY........58-61 PERCENT. 20 FOOT WINDS.......SOUTHEAST WINDS 8 TO 12 MPH WITH GUSTS TO 22 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH SHIFTING TO THE SOUTH AROUND 20 MPH EARLY IN THE MORNING. LAL.................2 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.41 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4100-5100 FT AGL DECREASING TO 500-1000 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTHEAST 20-25 MPH. SMOKE DISPERSAL.....GOOD (97200 KNOT-FT) DECREASING TO POOR (15000 KNOT-FT) AFTER MIDNIGHT. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). ISOLATED RAIN SHOWERS IN THE MORNING...BECOMING SCATTERED IN THE AFTERNOON. MAX TEMPERATURE.....54-57. MIN HUMIDITY........28-31 PERCENT. 20 FOOT WINDS.......SOUTHEAST WINDS AROUND 12 MPH WITH GUSTS TO AROUND 25 MPH EARLY IN THE MORNING BECOMING SOUTHWEST IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH TO SOUTHEAST 15 TO 20 MPH SHIFTING TO THE SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON. LAL.................1. CHC OF WETTING RAIN.20 PERCENT IN THE AFTERNOON. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1500-2000 FT AGL INCREASING TO 4000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 15 TO 18 MPH BECOMING SOUTHWEST IN THE AFTERNOON. SMOKE DISPERSAL.....POOR THROUGH 1000L THEN BECOMING GOOD (34000-65000 KNOT-FT). .FORECAST DAYS 3 THROUGH 5... .THURSDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS IN THE EVENING...THEN ISOLATED SHOWERS AND SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH. .FRIDAY...MOSTLY CLOUDY. SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH. .SATURDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH. .SUNDAY...PARTLY CLOUDY. CHANCE OF RAIN AND SNOW. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...SKRBAC REQUESTED BY...MONONI REASON FOR REQUEST...PRESCRIBED .TAG 20120411.WESTS.01/RIW