FNUS71 KRNK 111118 FWSRNK SPOT FORECAST FOR APCO 2012...NPS NATIONAL WEATHER SERVICE BLACKSBURG VA 718 AM EDT TUE SEP 11 2012 FORECAST IS BASED ON IGNITION TIME OF 0930 EDT ON SEPTEMBER 12. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE ALOFT AND AT THE SURFACE WILL REMAIN FIRMLY ENTRENCHED ACROSS THE REGION THROUGH THE END OF THE WEEK. THE CENTER OF THE SURFACE HIGH WILL GRADUALLY SHIFT EAST TOWARD THE DELMARVA REGION BY THURSDAY. THIS WILL PROVIDE THE REGION WITH WEAK EASTERLY FLOW...WHICH WILL GRADUALLY INCREASE SURFACE MOISTURE LEVELS THROUGH THE LATER HALF OF THE WEEK. THROUGH WEDNESDAY...AS DEWPOINTS REMAIN MOSTLY IN THE 40S AND TEMPERATURES WARM TOWARD 80...ESPECIALLY ACROSS THE PIEDMONT...MINIMUM AFTERNOON RELATIVE HUMIDITY VALUES WILL BEGIN TO APPROACH CRITICAL LEVELS...BUT AT THIS TIME ARE EXPECTED TO REMAIN MOSTLY IN THE 30 TO 35 PERCENT RANGE. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). TEMPERATURE.........MAX 75. RH..................30 TO 35 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......2200 FT AGL...INCREASING TO 4200 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....SOUTHEAST 2 MPH. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).............5 5 3 3 6 5 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TSTM COV............ TEMP................50 53 61 67 72 73 RH..................100 82 60 48 38 34 20 FT WIND..........N 0 N 0 E 2 E 2 E 1 SE 1 20 FT WIND GUST..... 5 5 MIX HGT (FT)........300 300 2200 3500 4100 4200 TRANSPORT WIND......S 0 S 0 SE 1 E 1 NE 2 E 1 CWR.................0 0 0 0 0 0 .TONIGHT... SKY/WEATHER.........CLEAR (0-10 PERCENT). TEMPERATURE.........MIN 48. RH..................MAX 96 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......1600 FT AGL...DECREASING TO 300 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTH 0 TO 1 MPH. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).............2 0 2 8 10 10 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TSTM COV............ TEMP................70 64 60 57 54 53 RH..................40 63 70 75 76 77 20 FT WIND..........SE 1 SE 0 SW 0 W 0 N 0 N 0 20 FT WIND GUST..... MIX HGT (FT)........2900 300 300 300 300 300 TRANSPORT WIND......SE 1 S 0 S 0 S 0 S 0 S 0 CWR.................0 0 0 0 0 0 .WEDNESDAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). TEMPERATURE.........62 AT IGNITION...MAX 80. RH..................71 PERCENT AT IGNITION...MIN 30 TO 35 PERCENT. WIND (20 FT)........WINDS SOUTHEAST AT 3 MPH AT IGNITION...OTHERWISE SOUTHEAST 3 TO 5 MPH. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......1700 FT AGL...INCREASING TO 3700 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....SOUTH 5 MPH. MIXING HEIGHT.......1700 FT AGL...INCREASING TO 3700 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....SOUTHEAST 5 MPH. TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).............10 10 13 1 7 8 9 9 10 9 8 7 WEATHER COV......... WEATHER TYPE........ TSTM COV............ TEMP................50 49 53 58 62 67 70 72 75 77 78 78 RH..................86 96 82 71 61 52 49 45 41 38 36 37 20 FT WIND DIR......N W W SW S S S S S S S S 20 FT WIND SPD......0 0 0 2 2 2 3 3 3 3 2 2 20 FT WIND GUST..... 5 5 5 5 5 5 5 5 MIX HGT (KFT).......0.3 0.3 0.3 1.0 1.7 2.5 2.8 3.2 3.6 3.6 3.7 3.7 TRANSP WIND DIR.....S S S S S S SE SE SE SE SE S TRANSP WIND SPD.....0 0 0 1 1 2 3 3 5 3 3 2 CWR.................0 0 0 0 0 0 0 0 0 0 0 0 $$ FORECASTER...BEASLEY REQUESTED BY...PEGGY AINSLIE TYPE OF REQUEST...PRESCRIBED .TAG 20120911.APCO2.02/RNK