FNUS71 KAKQ 171240 FWSAKQ SPOT FORECAST FOR CHUB UNIT 2 SOUTH...DCR-DNH NATIONAL WEATHER SERVICE WAKEFIELD VA 740 AM EST THU FEB 17 2011 FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON FEBRUARY 17. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...WARM AND DRY TODAY AND FRIDAY...AND EVEN DRIER SATURDAY... A DRY SOUTHWEST FLOW WILL PERSIST TODAY...ALONG WITH SOMEWHAT BREEZY CONDITIONS BY AFTERNOON. EVEN WARMER TEMPERATURES...STRONGER SOUTHWEST WINDS...AND CONTINUED DRY CONDITIONS MAY RESULT IN AN ENHANCED FIRE WEATHER DANGER SITUATION ON FRIDAY. EXTREMELY DRY CONDITIONS WILL BE LIKELY ON SATURDAY...WITH MINIMUM RELATIVE HUMIDITY VALUES FALLING TO BELOW 20 PERCENT OVER MOST OF THE REGION. WINDS WILL BE STRONG AND GUSTY OVER NORTHERN AND EASTERN SECTIONS...WITH A CRITICAL FIRE WEATHER DAY LIKELY. OVER SOUTH CENTRAL VIRGINIA...WINDS ARE NOT EXPECTED TO BE AS STRONG BUT A CRITICAL FIRE DAY IS STILL POSSIBLE DUE TO THE EXTREMELY LOW RH VALUES. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 69. MIN HUMIDITY........32 PERCENT. WIND (20FT/2MIN)....SOUTHWEST 10 TO 15 MPH. GUSTS UP TO 20 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-2100 FT AGL...INCREASING TO 3700-5500 FT AGL. TRANSPORT WINDS.....SOUTHWEST 10 MPH...INCREASING TO 21 TO 26 MPH. MPH. VENTILATION RATE....VERY POOR (1000-27300 FT-MPH)...INCREASING TO FAIR TO GOOD (58300-100000 FT-MPH) EARLY IN THE AFTERNOON...THEN INCREASING TO EXCELLENT (115200-121000 FT-MPH) EARLY IN THE AFTERNOON...DECREASING TO GOOD (67500 FT-MPH) LATE. TIME (EST) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........26 29 31 34 36 39 41 43 45 46 48 49 WEATHER COV..... WEATHER TYPE.... TEMP............59 63 66 68 69 69 68 65 61 59 57 55 RH..............42 38 36 34 35 33 37 46 58 60 64 72 20 FT WIND DIR..SW SW SW SW SW SW SW SW S S S S 20 FT WIND SPD..7 8 9 9 9 9 8 6 4 4 4 4 20 FT WIND GUST.15 15 15 20 20 20 15 15 10 10 10 10 MIX HGT (KFT)...2.1 3.4 4.8 5.0 5.3 5.5 3.7 2.0 0.3 0.3 0.3 0.3 TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW S S S TRANSP WIND SPD.15 20 24 26 26 25 21 16 12 9 8 8 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT)...THEN BECOMING MOSTLY CLOUDY (50-60 PERCENT). MIN TEMPERATURE.....AROUND 50. MAX HUMIDITY........80 PERCENT. WIND (20FT/2MIN)....SOUTHWEST WINDS 5 TO 7 MPH. MIXING HEIGHT.......300-2000 FT AGL. TRANSPORT WINDS.....SOUTHWEST 8 TO 17 MPH. VENTILATION RATE....VERY POOR (1800-28000 FT-MPH). .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). MAX TEMPERATURE.....AROUND 76. MIN HUMIDITY........30 PERCENT. WIND (20FT/2MIN)....SOUTHWEST WINDS 6 TO 13 MPH. GUSTS UP TO 25 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-1600 FT AGL...INCREASING TO 3400-5000 FT AGL. TRANSPORT WINDS.....WEST 15 TO 24 MPH...INCREASING TO 21 TO 25 MPH EARLY IN THE AFTERNOON. VENTILATION RATE....VERY POOR TO FAIR (3300-52000 FT-MPH)...INCREASING TO GOOD (61300-109000 FT-MPH) IN THE AFTERNOON. FORECASTER...RUSNAK REQUESTED BY...REBECCA WILSON TYPE OF REQUEST...PRESCRIBED .TAG 20110217.CHUBU.01/AKQ