FNUS75 KRIW 172259 FWSRIW SPOT FORECAST FOR FONTENELLE FIRE...USFS BTF NATIONAL WEATHER SERVICE RIVERTON WY 459 PM MDT TUE JUL 17 2012 FORECAST IS BASED ON REQUEST TIME OF 1243 MDT ON JULY 17. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SOUTH SOUTHWEST FLOW ALOFT WILL CONTINUE OVER THE FIRE AREA THROUGH FRIDAY. WEDNESDAY WILL HAVE LESS MOISTURE ALOFT WITH LESS CLOUD COVER EARLY. THIS WILL ALLOW MORE HEATING AND MORE INSTABILITY WEDNESDAY AFTERNOON AND EVENING. SHOWERS AND THUNDERSTORMS WILL START DEVELOPING AROUND NOON AND SHOULD BE OVER BY 7 PM MDT. THURSDAY WILL SEE MORE TROPICAL MOISTURE SURGE UP WITH MORE CLOUD COVER AND A GREATER COVERAGE OF SHOWERS AND THUNDERSTORMS. RAINFALL WILL BE HIT AND MISS OVER AND AROUND THE FIRE AREA. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...C.BAKER .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT) THEN BECOMING PARTLY CLOUDY AFTER NOON(50-60 PERCENT). SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....72-76. MIN HUMIDITY........20-25 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.15 PERCENT. RAINFALL............ .05 TO .10 WITH ISOLATED .25. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5600-6600 FT AGL INCREASING TO 8600-9600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 10 TO 16 MPH. SMOKE DISPERSAL.....GOOD TO VERY GOOD (69200-109600 KNOT-FT). .WEDNESDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING UNTIL 7 PM THEN CLEARING. MIN TEMPERATURE.....44-46. MAX HUMIDITY........78-83 PERCENT. 20 FOOT WINDS.......SOUTHWEST AT 8 TO 12 MPH UNTIL SUNSET WITH GUSTS FROM 15 TO 20 MPH...THEN BECOMING SOUTH AT 4 TO 7 MPH AFTER SUNSET. THEN VARIABLE IN DIRECTION AT 3 TO 6 MPH AFTER MIDNIGHT. GUSTY AND ERRATIC WINDS TO 35 MPH EXPECTED NEAR THUNDERSTORMS IN THE EVENING. RIDGE TOP WINDS.....SOUTHWEST 12 TO 16 MPH WITH GUSTS AROUND 20 MPH UNTIL SUNSET. THEN BECOMING SOUTH TO SOUTHWEST AT 5 TO 10 MPH AFTER SUNSET. LAL.................2 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.10 PERCENT. RAINFALL............ .05 TO .10 WITH ISOLATED .25. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......DECREASING TO AROUND 1000 FEET AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH UNTIL SUNSET. SOUTH TO SOUTHWEST AROUND 10 MPH BY MIDNIGHT. SMOKE DISPERSAL.....DECREASING TO FAIR BY 2100...DECREASING TO POOR AFTER MIDNIGHT. .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY EARLY THEN PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....74-77. MIN HUMIDITY........20-25 PERCENT. 20 FOOT WINDS.......VARIABLE AT 3 TO 6 MPH UNTIL 1000. THEN SOUTH TO SOUTHEAST AT 7 TO 10 MPH AFTER 1000 WITH GUSTS TO 15 MPH IN THE AFTERNOON. GUSTY AND ERRATIC WINDS TO 35 MPH EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH TO SOUTHWEST 5 TO 10 MPH UNTIL 1000. THEN SOUTH TO SOUTHWEST AT 10 TO 15 MPH AFTER 1000. WIND GUSTS AROUND 20 MPH IN THE AFTERNOON. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.10 PERCENT. RAINFALL............ .05 TO .10 WITH ISOLATED .25. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO 8000-9000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH BY 1200 AND CONTINUING IN THE AFTERNOON. SMOKE DISPERSAL.....BECOMING GOOD BY 1200...THEN INCREASING TO VERY GOOD BY 1400. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS GENERALLY LESS THAN 10 MPH. .SUNDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...C.BAKER REQUESTED BY...CHRIS CHURCH REASON FOR REQUEST...WILDFIRE .TAG 20120717.FONTE.01/RIW