FNAK79 PAFG 211421 FWSAFG SPOT FORECAST FOR SHEENJACK NATIONAL WEATHER SERVICE FAIRBANKS AK 621 AM AKDT TUE JUL 21 2009 FORECAST IS BASED ON REQUEST TIME OF 2309 AKDT ON JULY 20. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE ALOFT IS WEAKENING TODAY. CIRCULATION AROUND A DEEP LOW IN BRISTOL BAY WILL DOMINATE THROUGH FRIDAY. THEREAFTER HIGH PRESSURE WILL REBUILD OVER THE AREA. THERMAL TROUGH IN FIRE AREA WILL CAUSE SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TO DEVELOP THIS AFTERNOON AND EVENING AS WELL AS WEDNESDAY AFTERNOON AND EVENING. RH VALUES WILL BE IN THE LOW TO MID 20S TODAY INCREASING TO AROUND 30 ON WEDNESDAY. EAST WINDS 8 TO 10 MPH WILL PERSIST THE NEXT COUPLE OF DAYS. .TODAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 78. MIN HUMIDITY........23 PERCENT. WIND (20 FT)........EAST WINDS 6 TO 12 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. CWR.................2 PERCENT. LAL.................1. MIXING HEIGHT.......RISING TO 8000 FEET BY NOON. MIXING WINDS........SOUTHEAST 8-14 MPH .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED THUNDERSTORMS IN THE EVENING...THEN ISOLATED RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 55. MAX HUMIDITY........62 PERCENT. WIND (20 FT)........NORTHEAST WINDS 4 TO 8 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. CWR.................3 PERCENT. LAL.................1. MIXING HEIGHT.......LOWERING TO 2000 FEET. MIXING WINDS........SOUTHEAST 8-14 MPH. .WEDNESDAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). MAX TEMPERATURE.....AROUND 74. MIN HUMIDITY........30 PERCENT. WIND (20 FT)........EAST WINDS 8 TO 12 MPH. CWR.................0 PERCENT. LAL.................1. MIXING HEIGHT.......RISING TO 8000 BY NOON. MIXING WINDS........SOUTHEAST 8-14 MPH. .FORECAST DAYS 3 THROUGH 5... .THURSDAY... PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. EAST WINDS AROUND 6 MPH. .FRIDAY... MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. SOUTH WINDS AROUND 7 MPH. .SATURDAY... PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. LIGHT WINDS. $$ FORECASTER...LITTLE REQUESTED BY...JAMES HIGGINS TYPE OF REQUEST...WILDFIRE .TAG 20090720.SHEEN.01/AFG