FNUS71 KAKQ 211158 FWSAKQ SPOT FORECAST FOR INDIAN CREEK MARSH...US FWS NATIONAL WEATHER SERVICE WAKEFIELD VA 758 AM EDT SAT MAR 21 2009 FORECAST IS BASED ON IGNITION TIME OF 1030 EDT ON MARCH 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE BUILDS ACROSS THE MID ATLANTIC REGION TODAY THROUGH SUNDAY. A DRY COLD FRONT APPROACHES FROM THE NORTH LATE SUNDAY... THEN PUSHES SOUTH OF THE MID ATLANTIC REGION MONDAY MORNING. ANOTHER CANADIAN HIGH PRESSURE WILL BUILD ACROSS THE AREA MONDAY THROUGH THE MIDDLE OF NEXT WEEK. .TODAY... SKY/WEATHER.........SUNNY (10 PERCENT). MAX TEMPERATURE.....AROUND 46. MIN HUMIDITY........49 PERCENT. WIND (20FT/2MIN)....NORTHEAST WINDS 10 TO 15 MPH. MIXING HEIGHT.......1600-3500 FT AGL...INCREASING TO 3600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTHEAST 16 TO 25 MPH. VENTILATION RATE....VERY POOR TO FAIR (33200-52400 FT-MPH). TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM SKY (%).........18 22 27 31 33 36 38 40 43 45 45 40 WEATHER COV..... WEATHER TYPE.... TEMP............43 44 46 46 46 46 46 46 44 43 41 41 RH..............60 55 53 53 51 51 51 57 60 67 67 70 20 FT WIND DIR..NE NE NE NE NE NE NE NE NE NE NE NE 20 FT WIND SPD..17 17 16 16 15 14 14 14 14 12 12 11 20 FT WIND GUST.25 25 25 25 20 20 20 20 20 20 20 15 MIX HGT (KFT)...3.4 3.5 3.6 3.6 3.6 3.6 3.6 3.6 3.0 2.5 1.9 1.8 MIXNG WIND DIR..NE NE NE NE NE NE NE NE NE NE NE NE MIXNG WIND SPD..20 17 16 16 16 16 16 16 15 15 14 12 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). MIN TEMPERATURE.....AROUND 40. MAX HUMIDITY........73 PERCENT. WIND (20FT/2MIN)....NORTH WINDS 10 TO 15 MPH. MIXING HEIGHT.......1200-3000 FT AGL...DECREASING TO 300-1000 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....NORTHEAST 6 TO 15 MPH...DECREASING TO 3 TO 5 MPH LATE. VENTILATION RATE....VERY POOR TO POOR (800-40100 FT-MPH). .SUNDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). MAX TEMPERATURE.....AROUND 49. MIN HUMIDITY........49 PERCENT. WIND (20FT/2MIN)....NORTHEAST WINDS 6 TO 8 MPH...BECOMING EAST AROUND 6 MPH LATE. MIXING HEIGHT.......300-1700 FT AGL...INCREASING TO 800-2400 FT AGL LATE IN THE MORNING...THEN DECREASING TO 300 FT AGL LATE. TRANSPORT WINDS.....NORTHWEST 2 TO 5 MPH...BECOMING SOUTH 2 TO 7 MPH IN THE AFTERNOON. VENTILATION RATE....VERY POOR (800-7300 FT-MPH). FORECASTER...RUSNAK REQUESTED BY...JON BECK TYPE OF REQUEST...PRESCRIBED .TAG 20090321.INDIA.01/AKQ