FNUS71 KAKQ 221208 FWSAKQ SPOT FORECAST FOR ANTIOCH PINES UNIT 1...DCR-DNH NATIONAL WEATHER SERVICE WAKEFIELD VA 808 AM EDT TUE MAR 22 2011 FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON MARCH 22. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A COLD FRONT LIES ACROSS CENTRAL VIRGINIA THIS MORNING AND IS EXPECTED TO PUSH FARTHER SOUTH TO NEAR THE NORTH CAROLINA BORDER BY THIS AFTERNOON. GENERALLY LIGHT SOUTHWEST TO WEST WINDS WILL SHIFT TO THE NORTHWEST TO NORTHEAST BEHIND THE FRONT AND AVERAGE 12 MPH OR LESS. THE FRONT WILL LIFT NORTHWARD AS A WARM FRONT THIS EVENING AND TONIGHT. THIS COULD TRIGGER SOME THUNDERSTORMS LATE LATE AFTERNOON AND TONIGHT ALONG AND SOUTH OF THE BOUNDARY AS A WEAK LOW DEVELOPS ON THE FRONT. THERE WILL BE MOSTLY MID TO HIGH CLOUDS OVER THE AREA THIS MORNING WITH SOME PATCHY FOG THAT WILL BURN OFF BY 10 AM. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). A SLIGHT CHANCE OF SHOWERS. MAX TEMPERATURE.....AROUND 70. MIN HUMIDITY........48 PERCENT. WIND (20FT/2MIN)....WEST WINDS AROUND 5 MPH EARLY IN THE MORNING...THEN BECOMING NORTHWEST TO NORTHEAST 8 TO 12 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-1800 FT AGL...INCREASING TO 2600-3600 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....NORTHWEST 8 TO 9 MPH...BECOMING NORTH 5 TO 12 MPH IN THE LATE MORNING AND AFTERNOON. VENTILATION RATE....VERY POOR (1600-25700 FT-MPH). TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........64 65 65 66 70 74 78 82 85 89 90 91 WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH CHC CHC CHC WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW TEMP............65 66 67 68 69 68 68 66 63 60 57 54 RH..............63 58 56 54 51 52 51 54 60 67 75 80 20 FT WIND DIR..N N N N NE NE NE NE E E E E 20 FT WIND SPD..7 6 6 5 5 5 5 4 4 3 3 4 20 FT WIND GUST.15 15 15 10 10 10 10 10 10 5 5 10 MIX HGT (KFT)...2.6 2.9 3.2 3.4 3.5 3.5 3.6 2.8 2.1 1.3 1.3 1.3 TRANSP WIND DIR.NW N NE NE N N N N NE E E E TRANSP WIND SPD.12 10 10 11 10 8 8 6 8 12 13 14 .TONIGHT... SKY/WEATHER.........CLOUDY (85-95 PERCENT). A CHANCE OF SHOWERS OR THUNDERSTORMS EARLY IN THE EVENING. MIN TEMPERATURE.....AROUND 46. MAX HUMIDITY........89 PERCENT. WIND (20FT/2MIN)....EAST WINDS AROUND 5 MPH EARLY IN THE EVENING...BECOMING LIGHT...THEN BECOMING EAST AROUND 5 MPH IN THE LATE EVENING AND EARLY MORNING...BECOMING LIGHT. MIXING HEIGHT.......1000-2800 FT AGL. TRANSPORT WINDS.....EAST 6 TO 14 MPH. VENTILATION RATE....VERY POOR (11300-15500 FT-MPH). .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SCATTERED SHOWERS AND THUNDERSTORMS LATE. MAX TEMPERATURE.....AROUND 76. MIN HUMIDITY........41 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTHWEST 5 TO 8 MPH IN THE LATE MORNING AND AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE. MIXING HEIGHT.......1100-3000 FT AGL...INCREASING TO 3300-3800 FT AGL LATE. TRANSPORT WINDS.....SOUTHWEST 9 TO 15 MPH. VENTILATION RATE....VERY POOR TO POOR (13500-38500 FT-MPH). FORECASTER...FOSTER REQUESTED BY...REBECCA WILSON TYPE OF REQUEST...PRESCRIBED .TAG 20110322.ANTIO.01/AKQ