FNUS71 KRNK 021118 FWSRNK SPOT FORECAST FOR SANDSTONE RX...NPS NATIONAL WEATHER SERVICE BLACKSBURG VA 718 AM EDT FRI APR 2 2010 FORECAST IS BASED ON IGNITION TIME OF 0740 EDT ON APRIL 02. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...VERY LOW RELATIVE HUMIDITIES AGAIN THIS AFTERNOON MAINTAINING AN INCREASED FIRE DANGER THREAT... A LARGE RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL REMAIN OVER THE EASTERN PORTION OF THE NATION INTO SATURDAY...MAINTAINING CLEAR AND VERY WARM TEMPERATURES BY DAY...WITH MILD TEMPERATURES AT NIGHT. THE MINIMUM RELATIVE HUMIDITY WILL AGAIN FALL INTO THE 15 TO 25 PERCENT RANGE IN MOST AREAS TODAY...WITH THE MINIMUM RELATIVE HUMIDITY MAINLY IN THE 25 TO 30 PERCENT RANGE ON SATURDAY. A WEAKENING MAINLY DRY COOL FRONT WILL MOVE EAST THROUGH THE AREA SATURDAY NIGHT. THIS FRONT WILL BRING ONLY SLIGHTLY COOLER WEATHER BACK INTO THE REGION ON SUNDAY INTO EARLY NEXT WEEK WHILE THE WEATHER REMAINS DRY. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 87. MIN HUMIDITY........18 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO 6 MPH LATE. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......8000 FT AGL. TRANSPORT WINDS.....SOUTHEAST 0 TO 9 MPH...BECOMING SOUTH LATE. TIME (EDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).............0 0 1 2 3 5 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TEMP................54 60 72 77 81 85 MIN HUMIDITY........54 46 30 24 21 18 WIND (20 FT)........E 3 NE 2 NW 1 SW 2 S 4 S 5 20 FT WIND GUST.....5 5 5 10 10 CWR.................0 0 0 0 0 0 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). MIN TEMPERATURE.....AROUND 53. MAX HUMIDITY........63 PERCENT. WIND (20 FT)........SOUTHEAST WINDS AROUND 5 MPH EARLY IN THE EVENING...BECOMING LIGHT AND VARIABLE...THEN BECOMING SOUTHEAST 5 TO 6 MPH LATE IN THE EVENING. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......1200 FT AGL. TRANSPORT WINDS.....SOUTHEAST 10 TO 17 MPH...DECREASING TO AROUND 7 MPH LATE. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).............6 8 10 11 13 13 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TEMP................82 73 67 63 61 58 MIN HUMIDITY........21 29 36 42 46 52 WIND (20 FT)........S 4 SE 3 SE 3 SE 4 SE 5 SE 5 20 FT WIND GUST.....10 10 10 10 10 10 CWR.................0 0 0 0 0 0 .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 80. MIN HUMIDITY........26 PERCENT. WIND (20 FT)........SOUTH WINDS 8 TO 13 MPH. GUSTS UP TO 25 MPH LATE IN THE MORNING. CWR (0.01 IN).......10 PERCENT. MIXING HEIGHT.......8100 FT AGL. TRANSPORT WINDS.....SOUTH 0 TO 5 MPH...INCREASING TO SOUTHWEST 22 TO 25 MPH. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).............13 13 16 20 28 50 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TEMP................56 56 64 72 77 79 MIN HUMIDITY........59 60 45 34 29 26 WIND (20 FT)........SE 5 SE 5 S 6 S 9 S 10 S 10 20 FT WIND GUST.....10 15 15 25 25 25 CWR.................0 0 0 0 10 10 $$ FORECASTER...WERT REQUESTED BY...PEGGY AINSLIE TYPE OF REQUEST...PRESCRIBED .TAG 20100402.SANDS.02/RNK