FNUS71 KRNK 131438 FWSRNK SPOT FORECAST FOR APCO 2012...NPS NATIONAL WEATHER SERVICE BLACKSBURG VA 1038 AM EDT THU SEP 13 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON SEPTEMBER 13. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE SHOULD KEEP US DRY INTO THE END OF THE WEEK WITH GRADUAL INCREASE IN HUMIDITY. A WEAK AND MAINLY DRY FRONT PASSES BY SATURDAY. BEHIND THE FRONT...AN EASTERLY FLOW AND SOME UPPER DISTURBANCES MAY KEEP THE AREA WET AND COOL SUNDAY AND MONDAY. STILL EXPECTING A GRADUAL SHIFT IN TRANSPORT WINDS FROM EAST OR SOUTHEAST THIS MORNING TO SOUTH TONIGHT AND SOUTHWEST ON FRIDAY. HOWEVER SPEEDS WILL REMAIN LIGHT WITH OVERALL VALUES OF BELOW 10 MPH. THE MORNING INVERSION WILL ALSO BE SLOW TO MIX OUT WITH PART OF THE HIGH PRESSURE RIDGE IN PLACE. THUS LOOKING AT LATE MORNING TO MIDDAY BEFORE THINGS MIX OUT TODAY AND PERHAPS 10 OR 11 AM ON FRIDAY. WITH DEWPOINTS STARTING TO SLOWLY INCREASE BY FRIDAY NIGHT WILL SEE HUMIDITY LEVELS JUMP UP TO 60-70 PERCENT SHORTLY AFTER DARK...WITH FURTHER SATURATION OVERNIGHT TO AROUND 90 PERCENT AS TEMPS DROP PRETTY QUICK TO NEAR THE DEWPOINTS DURING THE LATE EVENING. .TODAY... SKY/WEATHER.........SUNNY (0-5 PERCENT). MAX TEMPERATURE.....AROUND 79. MIN HUMIDITY........38 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......1900 FT AGL...INCREASING TO 3600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTH AROUND 0 MPH...BECOMING SOUTHEAST 0 TO 1 MPH IN THE MORNING. TIME (EDT) 11 AM 1 PM 3 PM 5 PM SKY (%).............0 0 0 3 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE TSTM COV............ TEMP................69 77 79 79 RH..................60 45 39 39 20 FT WIND..........N 1 E 2 E 3 E 3 20 FT WIND GUST..... 5 5 5 CWR.................0 0 0 0 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). MIN TEMPERATURE.....AROUND 55. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......300 FT AGL. TRANSPORT WINDS.....SOUTH AROUND 0 MPH. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).............4 6 6 6 11 15 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TSTM COV............ TEMP................75 70 65 62 60 59 RH..................47 60 69 77 84 88 20 FT WIND..........E 3 SE 2 SE 2 S 1 SW 0 W 0 20 FT WIND GUST.....5 5 CWR.................0 0 0 0 0 0 .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT)...THEN BECOMING PARTLY SUNNY (55-65 PERCENT). MAX TEMPERATURE.....AROUND 80. MIN HUMIDITY........46 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING SOUTH TO SOUTHWEST 3 TO 8 MPH IN THE AFTERNOON. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......2100 FT AGL...INCREASING TO 3500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 1 TO 3 MPH...BECOMING SOUTHWEST 3 TO 7 MPH IN THE AFTERNOON. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).............23 43 62 70 71 57 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TSTM COV............ TEMP................57 59 66 72 77 78 RH..................100 90 76 63 50 46 20 FT WIND..........W 0 NW 0 SW 0 S 1 SW 1 SW 2 20 FT WIND GUST..... CWR.................0 0 0 0 0 0 $$ FORECASTER...HUDGINS REQUESTED BY...PEGGY AINSLIE TYPE OF REQUEST...PRESCRIBED .TAG 20120913.APCO2.01/RNK