FNUS71 KAKQ 121408 FWSAKQ SPOT FORECAST FOR BLACKWATER RX...USFWS BLACKWATER NWR NATIONAL WEATHER SERVICE WAKEFIELD VA 908 AM EST SAT FEB 12 2011 FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON FEBRUARY 12. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A WEAK LOW PRESSURE SYSTEM OFF THE NORTH CAROLINA COAST WILL MOVE NORTHEAST AND FARTHER OUT TO SEA TODAY. HIGH PRESSURE WILL REMAIN CENTERED OVER THE SOUTHERN STATES INTO EARLY NEXT WEEK...AS A STRONG LOW PRESSURE SYSTEM TRACKS ACROSS THE GREAT LAKES AND NEW ENGLAND. THIS PATTERN WILL BRING A WARMER AND DRY PERIOD TO THE MID ATLANTIC REGION. .TODAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 50. MIN HUMIDITY........28 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING WEST 6 TO 15 MPH WITH GUSTS UP TO 30 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-1800 FT AGL...INCREASING TO 5400-6300 FT AGL. TRANSPORT WINDS.....WEST 7 TO 15 MPH...INCREASING TO 32 TO 35 MPH. VENTILATION RATE....VERY POOR TO POOR (1600-42900 FT-MPH)...INCREASING TO EXCELLENT (163800-190400 FT-MPH). TIME (EST) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........17 15 12 13 14 15 15 16 17 24 31 38 WEATHER COV..... WEATHER TYPE.... TEMP............44 45 47 47 47 46 45 42 40 38 36 34 RH..............39 35 31 30 30 29 33 39 46 50 54 58 20 FT WIND DIR..W W W W W NW W NW NW NW NW NW 20 FT WIND SPD..10 13 14 14 14 14 11 9 7 5 4 3 20 FT WIND GUST.20 25 30 30 30 30 25 20 15 10 10 5 MIX HGT (KFT)...3.5 4.5 5.4 5.7 6.0 6.3 5.6 5.0 4.4 3.3 2.2 1.1 TRANSP WIND DIR.W W W W W W W W NW NW NW NW TRANSP WIND SPD.23 26 29 32 35 35 33 30 26 22 18 14 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT)...THEN BECOMING MOSTLY CLOUDY (50-60 PERCENT). MIN TEMPERATURE.....AROUND 26. MAX HUMIDITY........75 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS UP TO 20 MPH EARLY IN THE EVENING...BECOMING LIGHT. MIXING HEIGHT.......3300-5000 FT AGL...DECREASING TO 300-2200 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....NORTHWEST 22 TO 30 MPH...BECOMING WEST 9 TO 18 MPH LATE IN THE EVENING...THEN BECOMING SOUTHWEST 8 TO 10 MPH AFTER MIDNIGHT. VENTILATION RATE....GOOD TO EXCELLENT (100300-131800 FT-MPH)...DECREASING TO VERY POOR (1700-13100 FT-MPH). .SUNDAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 54. MIN HUMIDITY........30 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTHWEST 6 TO 14 MPH WITH GUSTS UP TO 25 MPH EARLY IN THE MORNING. MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 2000-2800 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 12 TO 18 MPH...INCREASING TO 22 TO 31 MPH IN THE LATE MORNING AND AFTERNOON...THEN DECREASING TO AROUND 21 MPH LATE. VENTILATION RATE....VERY POOR TO FAIR (2400-50800 FT-MPH)...INCREASING TO POOR TO GOOD (35100-76000 FT-MPH) IN THE AFTERNOON. FORECASTER...PROCH/ZIMMERMAN REQUESTED BY...ART CANTERBURY TYPE OF REQUEST...PRESCRIBED .TAG 20110212.BLACK.01/AKQ