FNUS75 KFGZ 211136 FWSFGZ SPOT FORECAST FOR SANDERS PILE BURN...NRA NAVAJO AREA NATIONAL WEATHER SERVICE FLAGSTAFF AZ 436 AM MST SAT AUG 21 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON AUGUST 21. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...THE HIGH PRESSURE RIDGE WILL MOVE NORTH TODAY PRODUCING A MORE SOUTHEASTERLY FLOW PATTERN ACROSS THE REGION AND BRINGING ADDITIONAL MOISTURE UP INTO NORTHERN ARIZONA THROUGH THE WEEKEND. EXPECT INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS OVER THE BURN SITE THROUGH SUNDAY. 20 FOOT WINDS MAY BECOME ERRATIC AND GUSTY IN THE AFTERNOON DUE TO THUNDERSTORM OUTFLOW BOUNDARIES. .TODAY... SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....84-87. MIN HUMIDITY........25-30 PCT. WINDS (20 FT).......SOUTHEASTERLY WINDS IN THE MORNING 2-5 MPH BECOMING VARIABLE IN THE AFTERNOON 3-7 MPH. LAL.................2. HAINES INDEX........5 MODERATE. MAX VENT RATE.......GOOD (66200 KNOT-FT). CLEARING INDEX......662. $$ FORECASTER...BOHLIN REQUESTED BY...ESMERALDA TSOSIE REASON FOR REQUEST...PRESCRIBED .TAG 20100821.SANDE.01/FGZ