FNUS75 KFGZ 190709 FWSFGZ SPOT FORECAST FOR SANDERS PILE BURN...NRA NAVAJO AREA NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1209 AM MST THU AUG 19 2010 FORECAST IS BASED ON IGNITION TIME OF 0700 MST ON AUGUST 19. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SLIGHTLY DRIER AIR WILL MOVE OVER THE BURN SITE FROM WEST TODAY AND FRIDAY. THIS WILL LOWER BUT NOT END THUNDERSTORM CHANCES. THUNDERSTORM ACTIVITY SHOULD INCREASE THIS WEEKEND AS MOIST SOUTHERLY FLOW RETURNS. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING...A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....83 TO 85. MIN HUMIDITY........24 TO 27 PCT. WINDS (20 FT).......SOUTHWEST WINDS AROUND 5 MPH. LAL.................3. HAINES INDEX........4 LOW. MAX VENT RATE.......FAIR (29900 KNOT-FT). CLEARING INDEX......299. $$ FORECASTER...STUBBLEFIELD REQUESTED BY...ESMERALDA TSOSIE REASON FOR REQUEST...PRESCRIBED .TAG 20100819.SANDE.01/FGZ