FNUS71 KAKQ 151106 FWSAKQ SPOT FORECAST FOR JAMES RIVER 3...U.S. FISH AND WILDLIFE SERVICE NATIONAL WEATHER SERVICE WAKEFIELD VA 706 AM EDT FRI APR 15 2011 FORECAST IS BASED ON IGNITION TIME OF 1200 EDT ON APRIL 15. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE BUILDS ACROSS NEW ENGLAND AND ATLANTIC CANADA TODAY AND TONIGHT. MEANWHILE...LOW PRESSURE OVER THE CENTRAL PLAINS TODAY TRAVERSES THE MID MISSISSIPPI VALLEY TONIGHT...AND THEN TRACKS ACROSS THE GREAT LAKES SATURDAY. A COLD FRONT ASSOCIATED WITH THIS LOW PRESSURE SYSTEM WILL APPROACH THE MID ATLANTIC SATURDAY...AND PUSH THROUGH THE REGION DURING THE EVENING. HIGH PRESSURE BUILDS ACROSS THE SOUTHEAST AND MID ATLANTIC SUNDAY INTO NEXT WEEK. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 68. MIN HUMIDITY........43 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING EAST 5 TO 12 MPH WITH GUSTS UP TO 20 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-1300 FT AGL...INCREASING TO 3300-4400 FT AGL. TRANSPORT WINDS.....SOUTHEAST 2 TO 6 MPH...INCREASING TO EAST 12 TO 18 MPH IN THE LATE MORNING AND AFTERNOON. VENTILATION RATE....VERY POOR TO FAIR (400-46800 FT-MPH)...INCREASING TO FAIR TO GOOD (52900-60700 FT-MPH) IN THE AFTERNOON. TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P SKY (%).........17 17 18 29 40 51 62 73 84 87 89 92 WEATHER COV..... WEATHER TYPE.... TEMP............66 66 66 66 66 65 63 60 57 55 53 52 RH..............47 45 45 45 47 48 54 60 69 74 80 86 20 FT WIND DIR..E E E E E E E E E E E E 20 FT WIND SPD..9 9 9 9 9 10 9 9 9 9 8 8 20 FT WIND GUST.15 20 20 20 20 20 20 15 15 15 15 15 MIX HGT (KFT)...3.8 4.1 4.4 4.0 3.7 3.3 2.9 2.5 2.2 1.9 1.6 1.3 TRANSP WIND DIR.SE SE SE SE E E E E E E E E TRANSP WIND SPD.16 16 16 16 17 18 20 20 21 21 22 21 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. A CHANCE OF SHOWERS LATE. MIN TEMPERATURE.....AROUND 51. MAX HUMIDITY........100 PERCENT. WIND (20FT/2MIN)....EAST WINDS 8 TO 10 MPH. MIXING HEIGHT.......1000-2900 FT AGL...DECREASING TO 300-700 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....EAST 20 TO 23 MPH. VENTILATION RATE....VERY POOR TO FAIR (5100-49000 FT-MPH). .SATURDAY... SKY/WEATHER.........CLOUDY (95-100 PERCENT). A CHANCE OF SHOWERS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 69. MIN HUMIDITY........64 PERCENT. WIND (20FT/2MIN)....SOUTHEAST WINDS 9 TO 16 MPH. GUSTS UP TO 30 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE. MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 2500-3000 FT AGL LATE. TRANSPORT WINDS.....SOUTHEAST 24 TO 32 MPH...INCREASING TO 37 TO 44 MPH IN THE AFTERNOON. VENTILATION RATE....VERY POOR TO POOR (5200-36500 FT-MPH)...INCREASING TO FAIR TO GOOD (57100-98100 FT-MPH) LATE IN THE MORNING. FORECASTER...MONTEFUSCO REQUESTED BY...KYLE KRZYWICKI TYPE OF REQUEST...PRESCRIBED .TAG 20110415.JAMES.01/AKQ