FNUS71 KRNK 301342 FWSRNK SPOT FORECAST FOR NO BUSINESS...USFS NATIONAL WEATHER SERVICE BLACKSBURG VA 942 AM EDT FRI APR 30 2010 FORECAST IS BASED ON IGNITION TIME OF 0915 EDT ON APRIL 30. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...LOW HUMIDITY WITH DEEP MIXING THIS AFTERNOON... SOUTHWEST WINDS WILL INCREASE SOME TODAY AS HIGH PRESSURE MOVES TO JUST OFF THE SOUTHEAST U.S. COAST. THE MORNING BLACKSBURG UPPER AIR SOUNDING INDICATED SOME VERY DRY AIR ALOFT. THE HUMIDITY AT 4000 FEET ABOVE GROUND LEVEL IS 23 PERCENT...AND SINCE DEEP MIXING IS FORECAST...THIS DRY AIR WILL LIKELY SURFACE ON YOUR FIRE THIS AFTERNOON. THE SPOT FORECAST MINIMUM HUMIDITY THIS AFTERNOON WILL BE BASED ON THIS POTENTIAL MIX DOWN OF DRY AIR. BOTH HUMIDITY AND WIND ARE EXPECTED TO INCREASE FOR SATURDAY. SOUTHWEST WINDS WILL BRING FLOW OFF THE GULF OF MEXICO WITH HIGHER DEW POINTS INTO THE REGION. THIS INCREASE IN MOISTURE WILL ALLOW FOR ISOLATED TO SCATTERED THUNDERSTORMS TO DEVELOP SATURDAY. A BETTER COVERAGE OF SHOWERS AND THUNDERSTORMS IS EXPECTED FROM SUNDAY EVENING INTO MONDAY AS A COLD FRONT SAGS INTO THE REGION. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 81. MIN HUMIDITY........23 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING SOUTHWEST 4 TO 7 MPH IN THE AFTERNOON. MIXING HEIGHT.......6100 FT AGL. TRANSPORT WINDS.....WEST 2 TO 4 MPH...BECOMING SOUTHWEST 10 TO 16 MPH EARLY IN THE AFTERNOON. TIME (EDT) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).............5 7 8 8 7 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE TEMP................58 69 74 77 80 MIN HUMIDITY........49 36 30 25 23 WIND (20 FT)........SW 2 W 2 W 4 SW 5 SW 5 20 FT WIND GUST.....5 5 10 15 15 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....AROUND 56. MAX HUMIDITY........80 PERCENT. WIND (20 FT)........SOUTH WINDS 5 TO 6 MPH UNTIL MIDNIGHT ...THEN BECOMING LIGHT AND VARIABLE. MIXING HEIGHT.......700 FT AGL. TRANSPORT WINDS.....SOUTHWEST 9 TO 17 MPH...BECOMING SOUTH 2 TO 5 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).............7 8 11 17 23 29 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TEMP................79 73 68 65 62 60 MIN HUMIDITY........27 38 46 55 62 68 WIND (20 FT)........SW 5 S 4 S 5 S 5 S 4 SW 3 20 FT WIND GUST.....10 10 10 10 10 5 .SATURDAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 78. MIN HUMIDITY........42 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING WEST 5 TO 9 MPH IN THE LATE MORNING AND AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. MIXING HEIGHT.......5800 FT AGL. TRANSPORT WINDS.....SOUTH 2 TO 5 MPH...INCREASING TO WEST 12 TO 18 MPH IN THE LATE MORNING AND AFTERNOON. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).............36 43 58 65 64 64 WEATHER COV......... CHANCE CHANCE CHANCE WEATHER TYPE........NONE NONE NONE RNSHWR RNSHWR RNSHWR TEMP................58 60 66 71 74 77 MIN HUMIDITY........77 71 63 58 50 45 WIND (20 FT)........SW 3 SW 3 SW 5 W 6 W 6 W 6 20 FT WIND GUST.....5 5 15 15 15 15 $$ FORECASTER...MANUEL REQUESTED BY...GEORGE ANNIS TYPE OF REQUEST...PRESCRIBED .TAG 20100430.NOBUS.02/RNK