FNUS71 KAKQ 141227 FWSAKQ SPOT FORECAST FOR WILNA NATIONAL WEATHER SERVICE WAKEFIELD VA 827 AM EDT MON MAR 14 2011 FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON MARCH 14. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A FRONTAL BOUNDARY HAS STALLED OVER THE SOUTHEAST STATES. LOW PRESSURE WILL PUSH ALONG THE BOUNDARY LATE TODAY THROUGH WEDNESDAY. HIGH PRESSURE BUILDS BACK OVER THE REGION BY LATE WEEK. .REST OF TODAY... SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT). MAX TEMPERATURE.....AROUND 54. MIN HUMIDITY........32 PERCENT. WIND (20FT/2MIN)....NORTHEAST WINDS 6 TO 10 MPH. MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 3200-4300 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....NORTH 8 TO 15 MPH. VENTILATION RATE....VERY POOR TO FAIR (2400-47000 FT-MPH). TIME (EDT) 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID SKY (%).........55 58 59 60 62 63 64 65 63 61 59 57 WEATHER COV..... WEATHER TYPE.... TEMP............50 50 52 53 52 50 48 47 43 41 40 39 RH..............41 39 35 33 35 39 44 47 55 62 64 67 20 FT WIND DIR..N N N N NE NE NE E E E E E 20 FT WIND SPD..8 9 8 6 5 4 3 3 3 2 2 2 20 FT WIND GUST.15 15 15 15 10 10 5 5 5 5 5 5 MIX HGT (KFT)...3.5 3.7 3.9 4.1 4.3 3.4 2.5 1.6 1.2 0.7 0.3 0.3 TRANSP WIND DIR.N N N N N N N NE NE E E E TRANSP WIND SPD.13 10 9 8 8 8 8 8 9 10 10 9 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). MIN TEMPERATURE.....AROUND 33. MAX HUMIDITY........82 PERCENT. WIND (20FT/2MIN)....NORTHEAST WINDS AROUND 5 MPH EARLY IN THE EVENING...BECOMING LIGHT. MIXING HEIGHT.......1600-3400 FT AGL...DECREASING TO 300-1200 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....NORTHEAST 3 TO 10 MPH. VENTILATION RATE....VERY POOR (800-24200 FT-MPH). .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). MAX TEMPERATURE.....AROUND 52. MIN HUMIDITY........45 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTHEAST 6 TO 8 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-1900 FT AGL...INCREASING TO 2800-3600 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....SOUTHEAST 5 TO 13 MPH. VENTILATION RATE....VERY POOR TO POOR (1000-39600 FT-MPH). FORECASTER...MONTEFUSCO REQUESTED BY...KYLE KRZYWICKI TYPE OF REQUEST...PRESCRIBED .TAG 20110314.WILNA.01/AKQ