FNUS71 KAKQ 241238 FWSAKQ SPOT FORECAST FOR EAST POOL RX...US FWS NATIONAL WEATHER SERVICE WAKEFIELD VA 738 AM EST TUE FEB 24 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON FEBRUARY 24. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...MINIMUM RELATIVE HUMIDITY VALUES WILL BOTTOM OUT NEAR 30 PERCENT THIS AFTERNOON... GUSTY NORTHWEST WINDS EARLY...ESPECIALLY NEAR THE COAST...WILL DIMINISH TODAY...AS HIGH PRESSURE FROM THE WEST BUILDS INTO THE MID ATLANTIC REGION. THE HIGH GRADUALLY PUSHES OFF THE COAST WEDNESDAY AND THURSDAY. A COLD FRONT APPROACHES FROM THE WEST ON FRIDAY...THEN STALLS OFF THE MID ATLANTIC COAST FRIDAY NIGHT AND SATURDAY. LOW PRESSURE MAY FORM ALONG THE FRONT NEAR THE SOUTHEAST REGION ON SATURDAY. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 42. MIN HUMIDITY........30 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 10 TO 15 MPH. MIXING HEIGHT.......2600-4300 FT AGL. TRANSPORT WINDS.....NORTHWEST 12 TO 21 MPH...DECREASING TO AROUND 10 MPH LATE. VENTILATION RATE....VERY POOR TO FAIR (25000-54100 FT-MPH). TIME (EST) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........2 2 2 3 3 4 5 6 6 6 5 5 WEATHER COV..... WEATHER TYPE.... TEMP............37 39 41 41 42 42 38 34 31 29 27 26 RH..............38 35 33 33 31 31 38 45 53 58 65 68 20 FT WIND DIR..NW NW NW NW NW NW NW N N NW NW NW 20 FT WIND SPD..11 11 10 9 8 7 6 6 5 5 3 2 20 FT WIND GUST.20 20 15 15 15 10 10 10 10 10 5 MIX HGT (KFT)...3.8 4.1 4.3 4.2 4.1 4.0 2.8 1.5 0.3 0.3 0.3 0.3 MIXNG WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW MIXNG WIND SPD..16 14 13 13 12 12 10 9 8 7 6 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). MIN TEMPERATURE.....AROUND 21. MAX HUMIDITY........81 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 5 TO 7 MPH EARLY IN THE EVENING...BECOMING LIGHT AND VARIABLE. MIXING HEIGHT.......300-1500 FT AGL. TRANSPORT WINDS.....NORTHWEST 2 TO 9 MPH. VENTILATION RATE....VERY POOR (600-12100 FT-MPH). .WEDNESDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 48. MIN HUMIDITY........36 PERCENT. WIND (20FT/2MIN)....LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO 8 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 2200-3600 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....NORTH 1 TO 2 MPH...BECOMING SOUTH 2 TO 10 MPH IN THE LATE MORNING AND AFTERNOON. VENTILATION RATE....VERY POOR (300-27700 FT-MPH). FORECASTER...HURLEY REQUESTED BY...JON BECK TYPE OF REQUEST...PRESCRIBED .TAG 20090224.EASTP.01/AKQ