FNUS75 KRIW 192047 FWSRIW SPOT FORECAST FOR FONTENELLE FIRE...IA TDC NATIONAL WEATHER SERVICE RIVERTON WY 247 PM MDT THU JUL 19 2012 FORECAST IS BASED ON REQUEST TIME OF 1337 MDT ON JULY 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE OVER THE COLORADO ROCKIES WILL ROTATE MOISTURE NORTH ACROSS THE REGION TONIGHT AND FRIDAY. THIS ADDED MOISTURE WILL LEAD TO A BETTER CHANCE OF SHOWERS BEGINNING TONIGHT AND CONTINUING THROUGH FRIDAY EVENING. ENOUGH ATMOSPHERIC MOISTURE WILL BE PRESENT ON FRIDAY TO GENERATE WET SHOWERS AND THUNDERSTORMS. CLOUD COVER WILL BE MORE EXTENSIVE FRIDAY WHICH WILL SLIGHTLY COOL TEMPERATURES. DRIER AIR WORKS INTO THE REGION SATURDAY...SO COVERAGE OF SHOWERS AND THUNDERSTORMS WILL BE LESS THAN FRIDAY AND TEMPERATURES WILL BE SIMILAR TO THOSE SEEN TODAY. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...JONES .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) WITH ISOLATED RAIN SHOWERS. ISOLATED THUNDERSTORMS POSSIBLE UNTIL 2100. MIN TEMPERATURE.....40-43 AT 8200 FT 52-55 AT 9700 FT. MAX HUMIDITY........78-84 PERCENT AT 8200 FT 68-73 PERCENT AT 9700 FT. 20 FOOT WINDS.......WESTERLY 5 TO 8 MPH UNTIL 2200...THEN BECOMING DOWNSLOPE/DOWNVALLEY 4 TO 7 MPH. WINDS COULD BE GUSTY AND ERRATIC UP TO 30 MPH NEAR ANY SHOWERS OR STORMS. RIDGE TOP WINDS.....WEST AROUND 10 MPH. LAL.................2 UNTIL 2100...THEN LAL 1. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......GRADUALLY DECREASING TO LESS THAN 1500 FT AGL BY 2200. TRANSPORT WINDS.....BECOMING DOWNSLOPE/DOWNVALLEY 5 TO 9 MPH BY 2200. SMOKE DISPERSAL.....DECREASING TO POOR BY 2200. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) WITH ISOLATED RAIN SHOWERS. ISOLATED THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....76-79 AT 8200 FT. 70-73 AT 9700 FT MIN HUMIDITY........25-28 PERCENT AT 8200 FT. 33-36 PERCENT AT 9700 FT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4 TO 7 MPH UNTIL 0900... THEN GRADUALLY BECOMING UPSLOPE/UPVALLEY 5 TO 9 MPH BY 1100. GUSTY AND ERRATIC WIND UP TO AROUND 25 MPH NEAR SHOWERS AND STORMS. RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH. LAL.................1 UNTIL 1200...THEN LAL 2. CHC OF WETTING RAIN.10 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......LESS THAN 3000 FT AGL UNTIL 0900...THEN GRADUALLY INCREASING TO AROUND 7500 FT AGL BY 1400. TRANSPORT WINDS.....DOWNSLOPE/DOWNVALLEY 4 TO 8 MPH UNTIL 0900... THEN BECOMING SOUTHWEST 10 TO 15 MPH BY 1300. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GRADUALLY INCREASING TO GOOD BY 1300. .FRIDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) WITH ISOLATED RAIN SHOWERS AND THUNDERSTORMS UNTIL 2100. THEN BECOMING PARTLY CLOUDY (30-40 PERCENT) BY 0400. MIN TEMPERATURE.....37-40 AT 8200 FT 49-52 AT 9700 FT. MAX HUMIDITY........82-86 PERCENT AT 8200 FT 74-78 PERCENT AT 9700 FT. 20 FOOT WINDS.......SOUTHWEST 5 TO 10 MPH UNTIL 2100...THEN BECOMING DOWNSLOPE/DOWNVALLEY 4 TO 8 MPH. WINDS COULD BE GUSTY AND ERRATIC UP TO 25 MPH NEAR ANY SHOWERS OR STORMS. RIDGE TOP WINDS.....WEST-SOUTHWEST AROUND 10 MPH. LAL.................2 UNTIL 2100...THEN LAL 1. CHC OF WETTING RAIN.10 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......GRADUALLY DECREASING TO LESS THAN 1500 FT AGL BY 2100. TRANSPORT WINDS.....WEST-SOUTHWEST 10 TO 15 MPH UNTIL 2000...THEN BECOMING DOWNSLOPE/DOWNVALLEY 5 TO 9 MPH BY 2100. SMOKE DISPERSAL.....GOOD UNTIL 1900...THEN DECREASING TO POOR BY 2100. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). ISOLATED RAIN SHOWERS AND THUNDERSTORMS AFTER 1300. MAX TEMPERATURE.....79-82 AT 8200 FT. 74-77 AT 9700 FT MIN HUMIDITY........18-21 PERCENT AT 8200 FT. 22-25 PERCENT AT 9700 FT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4 TO 7 MPH UNTIL 0900... THEN GRADUALLY BECOMING UPSLOPE/UPVALLEY 5 TO 9 MPH BY 1100. RIDGE TOP WINDS.....WEST-SOUTHWEST 5 TO 10 MPH. LAL.................1 UNTIL 1300...THEN LAL 2. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......LESS THAN 3000 FT AGL UNTIL 0900...THEN GRADUALLY INCREASING TO AROUND 9500 FT AGL BY 1400. TRANSPORT WINDS.....DOWNSLOPE/DOWNVALLEY 4 TO 8 MPH UNTIL 0900... THEN BECOMING WEST-SOUTHWEST AROUND 10 MPH BY 1400. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GRADUALLY INCREASING TO GOOD BY 1400. .FORECAST DAYS 3 THROUGH 5... .SATURDAY NIGHT...PARTLY CLOUDY WITH ISOLATED EVENING SHOWERS AND THUNDERSTORMS. LOWS NEAR 40. .SUNDAY...PARTLY CLOUDY WITH WIDELY SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. LOWS NEAR 40. HIGHS IN THE MID 70S. WINDS GENERALLY LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY WITH WIDELY SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. LOWS NEAR 40. HIGHS IN THE MID 70S. WINDS GENERALLY LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY. LOWS NEAR 40. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...JONES REQUESTED BY...CHRIS CHURCH REASON FOR REQUEST...WILDFIRE .TAG 20120719.FONTE.02/RIW