FNUS71 KRNK 221841 FWSRNK SPOT FORECAST FOR CUBVILLE...USFS NATIONAL WEATHER SERVICE BLACKSBURG VA 241 PM EDT THU APR 22 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON APRIL 22. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...RELATIVE HUMIDITY DROPPING TO AROUND 20 PERCENT... HIGH PRESSURE WILL WEAKEN THIS EVENING. DRY AIR IN PLACE OVER THE REGION WILL BRING RH VALUES NEAR 20 PERCENT. A WEAK UPPER LEVEL DISTURBANCE SLIDING IN FROM THE NORTHWEST MAY BRING ISOLATED SHOWERS TO THE MOUNTAINS LATE THIS AFTERNOON INTO EARLY EVENING. THE PERIOD WHEN SHOWERS MAY BE IN THE AREA WILL BE FROM 400 PM THROUGH 800 PM. A WEAK COLD FRONT WILL THEN DROP SOUTH ACROSS THE REGION OVERNIGHT BEFORE STALLING OVER NORTH CAROLINA BY EARLY FRIDAY. THIS FRONT SHOULD LIFT BACK NORTH INTO THE AREA FRIDAY INTO FRIDAY NIGHT BRINGING ANOTHER CHANCE OF SHOWERS. INCREASING HUMIDITY AND WARMER TEMPERATURES FOLLOW THE FRONT FOR THE WEEKEND...ALONG WITH CHANCES OF SHOWERS AND THUNDERSTORMS AHEAD OF A COLD FRONT EXPECTED TO CROSS THE AREA EARLY NEXT WEEK. .REST OF TODAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). ISOLATED SHOWERS LATE. MAX TEMPERATURE.....AROUND 65. MIN HUMIDITY........28 PERCENT. WIND (20 FT)........WEST WINDS 9 TO 10 MPH. CWR (0.01 IN).......20 PERCENT. MIXING HEIGHT.......8900 FT AGL. TRANSPORT WINDS.....WEST 16 TO 17 MPH. TIME (EDT) 2PM 3PM 4PM 5PM SKY (%).............47 39 41 49 WEATHER COV......... ISO ISO ISO WEATHER TYPE........ RW RW RW TEMP................66 68 69 65 MIN HUMIDITY........25 22 20 25 20 FT WIND DIR......NW NW W W 20 FT WIND SPD......8 8 7 7 20 FT WIND GUST.....20 20 20 15 CWR.................10 15 15 15 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS EARLY IN THE EVENING. MIN TEMPERATURE.....AROUND 45. MAX HUMIDITY........70 PERCENT. WIND (20 FT)........WEST WINDS 5 TO 8 MPH EARLY IN THE EVENING...BECOMING LIGHT AND VARIABLE. CWR (0.01 IN).......20 PERCENT. MIXING HEIGHT.......300 FT AGL. TRANSPORT WINDS.....SOUTHWEST 5 TO 12 MPH...BECOMING SOUTH AROUND 0 MPH EARLY IN THE EVENING. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).............48 45 41 38 35 42 WEATHER COV.........ISOLTD WEATHER TYPE........RNSHWR NONE NONE NONE NONE NONE TEMP................62 57 54 52 50 48 MIN HUMIDITY........33 42 46 52 58 60 WIND (20 FT)........W 6 W 5 W 3 W 2 NW 2 SW 2 20 FT WIND GUST.....15 10 5 5 5 5 CWR.................15 10 10 10 10 10 .FRIDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). A CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 62. MIN HUMIDITY........44 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING WEST AROUND 6 MPH LATE IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE AFTERNOON. CWR (0.01 IN).......30 PERCENT. MIXING HEIGHT.......3600 FT AGL. TRANSPORT WINDS.....SOUTHWEST 0 TO 3 MPH...BECOMING WEST 7 TO 14 MPH IN THE LATE MORNING AND AFTERNOON. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).............48 52 54 57 59 62 WEATHER COV......... CHANCE CHANCE WEATHER TYPE........NONE NONE NONE NONE RNSHWR RNSHWR TEMP................46 48 53 56 59 61 MIN HUMIDITY........65 65 59 52 46 44 WIND (20 FT)........SW 2 SW 2 W 3 W 5 W 5 W 5 20 FT WIND GUST.....5 5 10 10 15 10 CWR.................10 10 10 10 30 30 $$ FORECASTER...JACKSON REQUESTED BY...STEVE SMESTAD TYPE OF REQUEST...PRESCRIBED .TAG 20100422.CUBVI.03/RNK