FNUS71 KAKQ 231257 FWSAKQ SPOT FORECAST FOR WILNA GRASSLANDS...US FISH AND WILDLIFE SERVICE NATIONAL WEATHER SERVICE WAKEFIELD VA 757 AM EST MON FEB 23 2009 FORECAST IS BASED ON IGNITION TIME OF 1600 EST ON FEBRUARY 23. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...ENHANCED FIRE DANGER CONDITIONS POSSIBLE TODAY... GUSTY WINDS ARE EXPECTED AGAIN TODAY...AS LOW PRESSURE MOVES OFF THE CANADIAN MARITIMES...AND HIGH PRESSURE REMAINS CENTERED ACROSS THE MIDWEST. THE HIGH WILL SLOWLY BUILD EASTWARD INTO THE MID ATLANTIC STATES FROM TONIGHT THROUGH WEDNESDAY...THEN OFFSHORE FOR THURSDAY. .TODAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 42. MIN HUMIDITY........20 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 12 TO 17 MPH. MIXING HEIGHT.......1800-3100 FT AGL...INCREASING TO 6500-7000 FT AGL. TRANSPORT WINDS.....NORTHWEST 20 TO 29 MPH. VENTILATION RATE....VERY POOR TO GOOD (31400-60700 FT-MPH)...INCREASING TO EXCELLENT (154300-165700 FT-MPH). TIME (EST) 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM SKY (%).........21 18 16 13 11 9 7 5 3 1 1 1 WEATHER COV..... WEATHER TYPE.... TEMP............39 37 35 34 32 31 29 29 28 27 26 25 RH..............21 26 29 32 36 39 42 42 46 48 50 52 20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW 20 FT WIND SPD..14 14 11 10 9 9 8 8 7 7 7 6 20 FT WIND GUST.25 20 20 15 15 15 15 15 10 10 10 10 MIX HGT (KFT)...7.0 6.8 6.6 6.3 5.8 5.4 4.9 4.6 4.4 4.2 3.9 3.7 MIXNG WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW MIXNG WIND SPD..26 28 28 29 29 29 28 26 25 24 24 23 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). MIN TEMPERATURE.....AROUND 20. MAX HUMIDITY........57 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 7 TO 12 MPH. MIXING HEIGHT.......4900-6600 FT AGL...DECREASING TO 2900-4600 FT AGL LATE IN THE EVENING. TRANSPORT WINDS.....NORTHWEST 23 TO 29 MPH. VENTILATION RATE....EXCELLENT (116200-160500 FT-MPH)...DECREASING TO FAIR (57000 FT-MPH). .TUESDAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 44. MIN HUMIDITY........21 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 5 TO 10 MPH. MIXING HEIGHT.......2000-3700 FT AGL...INCREASING TO 3000-4400 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTHWEST 13 TO 22 MPH...DECREASING TO AROUND 10 MPH LATE. VENTILATION RATE....VERY POOR TO FAIR (26400-55300 FT-MPH). FORECASTER...HURLEY REQUESTED BY...KYLE KRZYWICKI TYPE OF REQUEST...PRESCRIBED .TAG 20090223.WILNA.01/AKQ