FNUS75 KFGZ 200736 FWSFGZ SPOT FORECAST FOR SANDERS PILE BURN...NAVAJO REGION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1236 AM MST FRI AUG 20 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON AUGUST 20. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WESTERLY FLOW WILL BRING DRIER AIR ACROSS NORTHERN ARIZONA THROUGH FRIDAY...LOWERING THE CHANCE FOR RAIN TO ONLY A SLIGHT CHANCE. SHOWER AND THUNDERSTORM ACTIVITY WILL INCREASE LATE THIS WEEKEND THROUGH THE FIRST HALF OF NEXT WEEK AS MOIST SOUTHERLY FLOW RETURNS. .TODAY... SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....79 TO 83. MIN HUMIDITY........28 TO 32 PCT. WINDS (20 FT).......LIGHT WINDS BECOMING WEST AROUND 10 MPH IN THE AFTERNOON. LAL.................2. HAINES INDEX........4 LOW. MAX VENT RATE.......GOOD (68600 KNOT-FT). CLEARING INDEX......686. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....82 TO 85. MIN HUMIDITY........26 TO 30 PCT. WINDS (20 FT).......EAST WINDS AROUND 5 MPH SHIFTING TO THE SOUTHWEST IN THE AFTERNOON. LAL.................2. HAINES INDEX........5 MODERATE. MAX VENT RATE.......VERY GOOD (87000 KNOT-FT). CLEARING INDEX......870. $$ FORECASTER...STUBBLEFIELD REQUESTED BY...ESMERALDA TSOSIE REASON FOR REQUEST...PRESCRIBED .TAG 20100820.SANDE.01/FGZ