FNUS75 KRIW 011153 FWSRIW SPOT FORECAST FOR YELLOW ROSE...IA RWC NATIONAL WEATHER SERVICE RIVERTON WY 553 AM MDT WED AUG 1 2012 FORECAST IS BASED ON REQUEST TIME OF 0001 MDT ON AUGUST 01. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING... .DISCUSSION... MONSOONAL MOISTURE WILL REMAIN OVER THE AREA TODAY. A FEW SHOWERS ARE POSSIBLE THIS MORNING...BUT WITH DAYTIME HEATING SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING. THE MAIN HAZARDS WILL BE STRONG AND ERRATIC WINDS...AS WELL AS DANGEROUS CLOUD TO GROUND LIGHTNING...AND BRIEF HEAVY RAINFALL. VERY DRY AND BREEZY CONDITIONS ARE EXPECTED OVER THE WILDFIRE AREA THURSDAY AND FRIDAY...WITH A DRY COLD FRONT MOVING ACROSS THE AREA FRIDAY. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...MURRELL .TODAY... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING...THEN SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 85. MIN HUMIDITY........15-20 PERCENT. 20 FOOT WINDS.......SOUTH 4-8 MPH...BECOMING WEST TO SOUTHWEST 5-10 MPH BETWEEN 10 AM AND NOON. WINDS BECOMING PREDOMINATELY INFLUENCED BY VERY GUSTY AND ERRATIC THUNDERSTORM WINDS AFTER 2 PM. RIDGE TOP WINDS.....WEST SOUTHWEST 10 TO 15 MPH. LAL.................1 UNTIL NOON...THEN 4. CHC OF WETTING RAIN.10 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2300 FT AGL INCREASING TO 9400 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST AROUND 15 MPH. SMOKE DISPERSAL.....INCREASING TO VERY GOOD BY THE AFTERNOON. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) WITH WIDELY SCATTERED SHOWERS AND THUNDERSTORMS THROUGH 10 PM...THEN ISOLATED SHOWERS THROUGH 2 AM. BECOMING MOSTLY CLEAR AFTER 2 AM. MIN TEMPERATURE.....55-60. MAX HUMIDITY........50 PERCENT. 20 FOOT WINDS.......PREDOMINATELY INFLUENCED BY GUSTY AND ERRATIC THUNDERSTORM WINDS IN THE EVENING...THE BECOMING SOUTH TO SOUTHWEST 5-10 MPH BY AROUND MIDNIGHT. RIDGE TOP WINDS.....WEST TO NORTHWEST AROUND 15 MPH. LAL.................3 UNTIL 10 PM...THEN 1. CHC OF WETTING RAIN.10 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6700-7700 FT AGL DECREASING TO 2000 FT AGL BY AROUND 9 PM. TRANSPORT WINDS.....WEST TO NORTHWEST AROUND 15 MPH. SMOKE DISPERSAL.....GOOD (99400 KNOT-FT) DECREASING TO POOR (31800 KNOT-FT) AFTER MIDNIGHT. .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (15 PERCENT). MAX TEMPERATURE.....AROUND 85. MIN HUMIDITY........10 PERCENT. 20 FOOT WINDS.......SOUTHWEST 5-10 MPH...BECOMING WEST 10 TO 15 MPH WITH FREQUENT GUSTS TO AROUND 25 MPH IN THE AFTERNOON. RIDGE TOP WINDS.....WEST NORTHWEST 15 TO 20 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3900 FT AGL INCREASING TO 9200 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 15 TO 25 MPH. SMOKE DISPERSAL.....INCREASING TO EXCELLENT BY AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 50S. WEST TO SOUTHWEST WINDS AROUND 10 MPH. .FRIDAY...MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE LOWER 80S. WEST WINDS 10 TO 15 MPH. .SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS AROUND 80. WINDS GENERALLY LESS THAN 10 MPH. .SUNDAY...MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...MURRELL REQUESTED BY...MATTHEW REASON FOR REQUEST...WILDFIRE .TAG 20120801.YELLO.01/RIW