FNUS71 KAKQ 161308 FWSAKQ SPOT FORECAST FOR PORTER TRACT...JORDAUSFWS NATIONAL WEATHER SERVICE WAKEFIELD VA 808 AM EST WED FEB 16 2011 FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON FEBRUARY 16. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...INCREASED FIRE DANGER IN EFFECT UNTIL 6 PM EST THIS EVENING... ...RELATIVE HUMIDITY VALUES BELOW 25 PERCENT EXPECTED THIS AFTERNOON... HIGH PRESSURE OVER THE MID ATLANTIC STATES WILL PUSH OFF THE COAST THROUGH TONIGHT. RH VALUES ARE EXPECTED TO FALL BELOW 25% ONCE AGAIN OVER MOST OF THE AREA TODAY (BELOW 20% ALONG AND WEST OF THE I-95 CORRIDOR). RH VALUES INCREASE SOMEWHAT ON THURSDAY...BUT SOUTH TO SOUTHWEST WINDS WILL ALSO BE ON THE INCREASE. WARM TEMPERATURES...STRONG SW WINDS AND CONTINUED DRY CONDITIONS COULD RESULT IN CRITICAL FIRE WEATHER CONDITIONS BY FRIDAY AND SATURDAY. NO SIGNIFICANT PRECIPITATION FORECASTED FOR THE UPCOMING WEEK. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 55. MIN HUMIDITY........39 PERCENT. WIND (20FT/2MIN)....LIGHT WINDS...BECOMING SOUTH 5 TO 9 MPH WITH GUSTS UP TO 20 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......300-2200 FT AGL...INCREASING TO 2400-3500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 3 TO 12 MPH...INCREASING TO 12 TO 14 MPH IN THE AFTERNOON. VENTILATION RATE....VERY POOR TO POOR (700-38600 FT-MPH). TIME (EST) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P SKY (%).........28 27 26 27 27 28 22 16 11 10 9 9 WEATHER COV..... WEATHER TYPE.... TEMP............51 52 54 55 55 55 54 51 49 47 46 45 RH..............44 43 40 38 38 38 43 54 63 68 71 76 20 FT WIND DIR..S S S S S S S S S S S S 20 FT WIND SPD..5 8 9 9 9 9 9 8 7 5 5 5 20 FT WIND GUST.10 15 20 20 20 20 15 15 10 10 10 10 MIX HGT (KFT)...1.2 2.2 3.2 3.3 3.4 3.5 2.4 1.3 0.3 0.3 0.3 0.3 TRANSP WIND DIR.S S S S S S S S S S S S TRANSP WIND SPD.10 12 13 14 13 13 12 10 9 9 9 9 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....AROUND 42. MAX HUMIDITY........96 PERCENT. WIND (20FT/2MIN)....SOUTHWEST WINDS 5 TO 7 MPH. MIXING HEIGHT.......300-1300 FT AGL. TRANSPORT WINDS.....SOUTHWEST 8 TO 10 MPH. VENTILATION RATE....VERY POOR (1700-11500 FT-MPH). .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). MAX TEMPERATURE.....AROUND 61. MIN HUMIDITY........43 PERCENT. WIND (20FT/2MIN)....SOUTH WINDS 6 TO 10 MPH. MIXING HEIGHT.......300-1400 FT AGL...INCREASING TO 1800-3600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 7 TO 16 MPH...INCREASING TO 14 TO 17 MPH IN THE AFTERNOON. VENTILATION RATE....VERY POOR TO POOR (1600-36300 FT-MPH)...INCREASING TO VERY POOR TO FAIR (21100-53200 FT-MPH) IN THE AFTERNOON. FORECASTER...ALBRIGHT REQUESTED BY...JORDAN BLACK TYPE OF REQUEST...PRESCRIBED .TAG 20110216.PORTE.01/AKQ