FNUS71 KAKQ 291846 FWSAKQ SPOT FORECAST FOR UNITY ROAD...VDOF NATIONAL WEATHER SERVICE WAKEFIELD VA 246 PM EDT THU JUL 29 2010 FORECAST IS BASED ON REQUEST TIME OF 1431 EDT ON JULY 29. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A COLD FRONT WILL APPROACH THE AREA FROM THE NORTHWEST LATE THIS AFTERNOON INTO THIS EVENING...PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS. THE COLD FRONT WILL DROP SOUTHWARD INTO NORTH CAROLINA TONIGHT. HIGH PRESSURE WILL BUILD INTO THE MID ATLANTIC REGION FROM THE NORTH FRIDAY AND SATURDAY...THEN BECOME CENTERED OFF THE SOUTHERN NEW ENGLAND COAST SATURDAY NIGHT INTO EARLY NEXT WEEK. .REST OF TODAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....AROUND 98. MIN HUMIDITY........44 PERCENT. WIND (20FT/2MIN)....NORTHWEST WINDS 5 TO 6 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. MIXING HEIGHT.......6500 FT AGL. TRANSPORT WINDS.....SOUTHWEST 6 TO 7 MPH. VENTILATION RATE....VERY POOR TO POOR (32800-39100 FT-MPH). TIME (EDT) 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM SKY (%).........75 80 80 78 76 75 73 69 65 61 60 60 WEATHER COV.....SCT SCT SCT SCT SCT SCT CHC CHC CHC CHC CHC CHC WEATHER TYPE....TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TEMP............97 97 97 97 95 92 87 83 79 76 75 74 RH..............45 43 42 46 52 63 72 82 87 90 90 90 20 FT WIND DIR..W W NW N NE NE NE NE NE NE N N 20 FT WIND SPD..5 5 4 4 3 3 3 3 3 3 3 3 20 FT WIND GUST.10 10 10 10 5 5 5 5 5 5 5 5 MIX HGT (KFT)...6.5 6.5 6.5 6.5 5.3 4.2 3.0 2.1 1.2 0.3 0.3 0.3 TRANSP WIND DIR.SW SW SW SW SW W SW S S S S S TRANSP WIND SPD.7 7 7 6 6 6 6 6 5 5 3 2 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT)...THEN BECOMING PARTLY CLOUDY (35-45 PERCENT). SCATTERED SHOWERS AND THUNDERSTORMS UNTIL EARLY MORNING. MIN TEMPERATURE.....AROUND 71. MAX HUMIDITY........93 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING NORTH AROUND 5 MPH LATE. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS UNTIL EARLY MORNING. MIXING HEIGHT.......4500-5500 FT AGL...DECREASING TO 300 FT AGL. TRANSPORT WINDS.....SOUTHEAST 2 TO 6 MPH...BECOMING NORTH 6 TO 8 MPH LATE. VENTILATION RATE....VERY POOR (600-26900 FT-MPH). .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 90. MIN HUMIDITY........37 PERCENT. WIND (20FT/2MIN)....NORTHEAST WINDS 6 TO 8 MPH. MIXING HEIGHT.......300-1800 FT AGL...INCREASING TO 7500-8000 FT AGL. TRANSPORT WINDS.....NORTHWEST 7 TO 14 MPH. VENTILATION RATE....VERY POOR TO FAIR (2200-51200 FT-MPH)...INCREASING TO FAIR TO GOOD (50900-61800 FT-MPH) IN THE AFTERNOON. FORECASTER...MCGEE REQUESTED BY...ANGELA CONARY TYPE OF REQUEST...WILDFIRE .TAG 20100729.UNITY.01/AKQ