FNUS71 KAKQ 151047 FWSAKQ SPOT FORECAST FOR WILNA 2 4...US FISH & WILDLIFE SERVICE NATIONAL WEATHER SERVICE WAKEFIELD VA 647 AM EDT TUE MAR 15 2011 FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON MARCH 15. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE WILL SLIDE OFF THE COAST TODAY. MEANWHILE...A LOW PRESSURE SYSTEM OVER THE TENNESSEE VALLEY WILL LIFT EAST NORTHEAST ACROSS THE REGION TONIGHT AND INTO WEDNESDAY. HIGH PRESSURE BUILDS BACK OVER THE AREA THURSDAY...THEN MOVES OFF THE COAST FOR FRIDAY. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT)...THEN BECOMING MOSTLY CLOUDY (75-85 PERCENT). A SLIGHT CHANCE OF SHOWERS LATE. MAX TEMPERATURE.....AROUND 53. MIN HUMIDITY........42 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTHEAST 5 TO 10 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 2800-4000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....EAST 6 TO 15 MPH...BECOMING SOUTHEAST 16 TO 17 MPH IN THE AFTERNOON. VENTILATION RATE....VERY POOR TO FAIR (1200-47300 FT-MPH)...INCREASING TO FAIR (52200-55800 FT-MPH) EARLY IN THE AFTERNOON. TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........49 71 78 85 85 84 84 83 83 82 85 87 WEATHER COV..... SCH SCH SCH SCH CHC CHC CHC WEATHER TYPE.... RW RW RW RW RW RW RW TEMP............42 46 49 52 52 51 51 50 50 49 49 49 RH..............62 55 50 44 46 52 54 58 61 66 68 68 20 FT WIND DIR..E E E E SE SE SE SE SE SE SE SE 20 FT WIND SPD..7 8 9 9 9 8 7 6 5 4 5 5 20 FT WIND GUST.10 15 15 15 15 10 10 10 10 5 10 10 MIX HGT (KFT)...2.2 2.8 3.4 4.0 3.8 3.6 3.4 3.0 2.5 2.1 1.9 1.6 TRANSP WIND DIR.E SE SE SE SE SE SE SE SE SE SE SE TRANSP WIND SPD.15 16 16 16 16 17 17 18 20 20 18 17 .TONIGHT... SKY/WEATHER.........CLOUDY (85-95 PERCENT). A SLIGHT CHANCE OF SHOWERS EARLY IN THE EVENING...THEN A CHANCE OF SHOWERS EARLY IN THE EVENING. RAIN AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 47. MAX HUMIDITY........83 PERCENT. WIND (20FT/2MIN)....SOUTHEAST WINDS 5 TO 9 MPH. MIXING HEIGHT.......1400-3000 FT AGL...DECREASING TO 300-1000 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTHEAST 15 TO 20 MPH. VENTILATION RATE....VERY POOR TO FAIR (3200-47400 FT-MPH). .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). RAIN IN THE MORNING. MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........44 PERCENT. WIND (20FT/2MIN)....WEST WINDS 7 TO 10 MPH. MIXING HEIGHT.......300-1900 FT AGL...INCREASING TO 5000-5900 FT AGL. TRANSPORT WINDS.....SOUTH AROUND 14 MPH...BECOMING WEST 12 TO 15 MPH. VENTILATION RATE....VERY POOR TO POOR (2700-44600 FT-MPH)...INCREASING TO FAIR TO GOOD (58700-76400 FT-MPH) EARLY IN THE AFTERNOON. FORECASTER...WAMSLEY REQUESTED BY...KYLE KRZYWICKI TYPE OF REQUEST...PRESCRIBED .TAG 20110315.WILNA.01/AKQ