FNUS71 KAKQ 231424 FWSAKQ SPOT FORECAST FOR UNIT G AND H...US FISH AND WILDLIFE SERVICE NATIONAL WEATHER SERVICE WAKEFIELD VA 924 AM EST WED FEB 23 2011 FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON FEBRUARY 23. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE BECOMES CENTERED ALONG THE MID AND NORTHERN ATLANTIC SEABOARD TODAY...THEN SHIFTS OFF THE COAST TONIGHT. LOW PRESSURE WILL TRACK NORTHEAST FROM THE LOWER MISSISSIPPI VALLEY LATE THURSDAY...THEN ACROSS THE NORTHERN MID ATLANTIC STATES ON FRIDAY. A COLD FRONT ASSOCIATED SOUTHWEST OF THE LOW WILL PUSH THROUGH THE AREA FRIDAY AFTERNOON AND EARLY EVENING. HIGH PRESSURE RETURNS TO THE REGION FRIDAY NIGHT THROUGH THE WEEKEND. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 43. MIN HUMIDITY........26 PERCENT. WIND (20FT/2MIN)....NORTHEAST WINDS 5 TO 8 MPH...BECOMING LIGHT. MIXING HEIGHT.......300-1900 FT AGL...INCREASING TO 1700-2600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTH 3 TO 9 MPH. VENTILATION RATE....VERY POOR (1700-10700 FT-MPH). TIME (EST) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........0 0 0 1 2 3 4 5 6 6 7 7 WEATHER COV..... WEATHER TYPE.... TEMP............38 39 41 41 42 42 40 36 33 28 28 28 RH..............35 32 27 29 28 29 33 38 45 58 60 66 20 FT WIND DIR..N N N N NE NE NE NE NE E E SE 20 FT WIND SPD..5 5 5 5 4 4 3 2 1 1 2 2 20 FT WIND GUST.10 10 10 10 5 5 5 5 MIX HGT (KFT)...1.1 1.9 2.6 2.5 2.5 2.5 1.7 1.0 0.3 0.3 0.3 0.3 TRANSP WIND DIR.N N N N N N N N NE NE E E TRANSP WIND SPD.6 6 5 5 3 3 5 5 6 5 5 3 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). MIN TEMPERATURE.....AROUND 27. MAX HUMIDITY........88 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS. MIXING HEIGHT.......300-1000 FT AGL. TRANSPORT WINDS.....SOUTH 3 TO 7 MPH. VENTILATION RATE....VERY POOR (900-4100 FT-MPH). .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT)...THEN BECOMING MOSTLY CLOUDY (75-85 PERCENT). MAX TEMPERATURE.....AROUND 51. MIN HUMIDITY........48 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTH 5 TO 13 MPH EARLY IN THE MORNING. MIXING HEIGHT.......300-1900 FT AGL...INCREASING TO 1900-3000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 8 TO 17 MPH...INCREASING TO 18 TO 23 MPH IN THE AFTERNOON. VENTILATION RATE....VERY POOR TO FAIR (1600-51200 FT-MPH)...INCREASING TO POOR TO FAIR (36800-52900 FT-MPH) LATE. .FORECAST DAYS 3 THROUGH 5... .FRIDAY... SHOWERS LIKELY. LOWS IN THE LOWER 40S. HIGHS IN THE MID 50S. SOUTH WINDS AROUND 12 MPH. .SATURDAY... PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS AROUND 50. NORTHWEST WINDS AROUND 10 MPH. .SUNDAY... MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. SOUTHWEST WINDS AROUND 5 MPH. FORECASTER...HURLEY REQUESTED BY...ART CANTERBURY TYPE OF REQUEST...PRESCRIBED .TAG 20110223.UNITG.01/AKQ