FNUS71 KAKQ 191103 FWSAKQ SPOT FORECAST FOR HOLLAND MARSH...US FISH AND WILDLIFE SERVICE (NWR) NATIONAL WEATHER SERVICE WAKEFIELD VA 703 AM EDT THU MAR 19 2009 FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON MARCH 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A COLD FRONT WILL PUSH THROUGH THE REGION LATER TODAY. SOUTHWEST WINDS ARE EXPECTED TO BECOME WEST BY EARLY AFTERNOON...THEN ABRUPTLY SHIFT TO THE NORTH SOMETIME BETWEEN 3 AND 6 PM. RAIN WILL BECOME LIKELY BY EVENING. NORTH WINDS WILL BRING MUCH COOLER WEATHER TO THE MID ATLANTIC ON FRIDAY...ESPECIALLY ALONG THE COAST. HIGH PRESSURE RETURNS LATER FRIDAY THROUGH THE WEEKEND WITH DRY CONDITIONS AND COOL TEMPERATURES PREVAILING THROUGH SATURDAY. A WARMING TREND BEGINS SUNDAY. .TODAY... SKY/WEATHER.........PARTLY SUNNY (40-50 PERCENT)...BECOMING MOSTLY CLOUDY LATE. A CHANCE OF SHOWERS LATE. MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........46 PERCENT. WIND (20FT/2MIN)....SOUTHWEST WINDS 10 TO 11 MPH...BECOMING NORTH 12 TO 16 MPH LATE. MIXING HEIGHT.......900 FT AGL...INCREASING TO 2500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 10 TO 18 MPH...BECOMING NORTH 15 TO 20 MPH LATE. VENTILATION RATE....POOR (22000-44300 FT-MPH). TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........30 35 40 44 51 58 70 75 90 90 90 91 WEATHER COV..... CHC CHC CHC CHC CHC LKY LKY LKY WEATHER TYPE.... RW RW RW RW RW RW RW RW TEMP............60 62 63 63 64 64 62 58 56 53 52 52 RH..............56 54 52 47 48 50 52 66 70 75 77 80 20 FT WIND DIR..SW SW SW SW W NW N N N N N N 20 FT WIND SPD..9 9 9 9 10 11 14 15 15 14 14 14 20 FT WIND GUST.15 15 15 15 15 15 20 20 20 20 20 20 MIX HGT (KFT)...1.9 2.0 2.7 2.8 2.7 2.5 2.0 1.5 1.5 1.0 1.5 1.3 MIXNG WIND DIR..SW SW SW W W NW N N N N N NE MIXNG WIND SPD..17 18 17 15 17 17 20 22 22 25 23 20 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). SHOWERS LIKELY IN THE EVENING. A CHANCE OF RAIN AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 42. MAX HUMIDITY........95 PERCENT. WIND (20FT/2MIN)....NORTHEAST WINDS 13 TO 17 MPH. MIXING HEIGHT.......500-2000 FT AGL. TRANSPORT WINDS.....NORTHEAST 16 TO 25 MPH...BECOMING NORTH 13 TO 18 MPH LATE. VENTILATION RATE....VERY POOR TO POOR (5300-34000 FT-MPH). .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT)...THEN BECOMING MOSTLY SUNNY (40-50 PERCENT). A CHANCE OF RAIN EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 47. MIN HUMIDITY........57 PERCENT. WIND (20FT/2MIN)....NORTH WINDS 13 TO 18 MPH. MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 2400-2900 FT AGL LATE. TRANSPORT WINDS.....NORTH 15 TO 22 MPH. VENTILATION RATE....VERY POOR TO FAIR (4400-50700 FT-MPH). FORECASTER...BROWN REQUESTED BY...TIM CRAIG TYPE OF REQUEST...PRESCRIBED .TAG 20090319.HOLLA.01/AKQ