FNUS71 KRNK 072117 FWSRNK SPOT FORECAST FOR WHITETOP...USFS NATIONAL WEATHER SERVICE BLACKSBURG VA 517 PM EDT SAT APR 7 2012 FORECAST IS BASED ON IGNITION TIME OF 1620 EDT ON APRIL 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE WILL MAINTAIN DRY WEATHER OVER THE REGION THROUGH THE WEEKEND. ON SUNDAY...THE APPROACH AND PASSAGE OF A MOSTLY DRY COLD FRONT WILL BRING GUSTY NORTHWEST WINDS...WITH GUSTS OF 20 TO 30 MPH POSSIBLE ACROSS THE HIGHER ELEVATIONS. AFTER A VERY DRY DAY ON SATURDAY WITH RELATIVE HUMIDITIES IN THE TEENS TO LOWER 20S...RELATIVE HUMIDITIES WILL RECOVER SLIGHTLY TONIGHT BEFORE FALLING BACK INTO THE MID 20S TO LOWER 30S ON BOTH SUNDAY AND MONDAY AFTERNOON. FOR THE AREA IMPACTED BY THE PRESCRIBED BURN...FUEL MOISTURES ARE AVERAGING IN THE 8 TO 9 PERCENT RANGE AT THE IGNITION TIME. RELATIVE HUMIDITY VALUES ARE IN THE 10 TO 15 PERCENT RANGE AT LOWER ELEVATIONS...RANGING UPWARD TO 25 TO 30 PERCENT AT THE HIGHER ELEVATIONS. THESE RELATIVE HUMIDITY VALUES WILL SLOWLY RECOVER INTO THE 20 TO 25 PERCENT RANGE BY 7 PM...THEN ABOVE 30 PERCENT AFTER 8 PM EDT. BE ADVISED THAT THESE READINGS ARE CURRENTLY WITHIN THE HIGH FIRE DANGER POTENTIAL RANGE...BUT WILL RISE OUT OF THE CRITICAL RANGE AFTER 8 PM EDT. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). MIN TEMPERATURE.....AROUND 38. MAX HUMIDITY........65 PERCENT. WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH EARLY IN THE EVENING...BECOMING LIGHT AND VARIABLE. CWR (0.01 IN).......0 PERCENT. MIXING HEIGHT.......1800 FT AGL...DECREASING TO 300 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....NORTHWEST 7 TO 13 MPH...BECOMING LIGHT SOUTH LATE. TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).............0 0 0 4 8 12 17 22 25 28 30 31 WEATHER COV......... WEATHER TYPE........ TSTM COV............ TEMP................55 54 53 51 50 48 47 46 44 44 43 42 RH..................25 27 30 34 37 42 45 47 50 52 54 56 20 FT WIND DIR......NW W W W SW SW SW SW SW SW S S 20 FT WIND SPD......5 4 2 2 2 2 2 2 2 2 2 2 20 FT WIND GUST.....15 10 5 5 5 5 5 5 5 5 5 5 CWR.................0 0 0 0 0 0 0 0 0 0 0 0 .SUNDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). MAX TEMPERATURE.....AROUND 63. MIN HUMIDITY........35 PERCENT. WIND (20 FT)........LIGHT AND VARIABLE WINDS...BECOMING WEST 8 TO 13 MPH WITH GUSTS UP TO 25 MPH IN THE LATE MORNING AND AFTERNOON. CWR (0.01 IN).......10 PERCENT. MIXING HEIGHT.......2200 FT AGL...INCREASING TO 5300 FT AGL. TRANSPORT WINDS.....SOUTHWEST 0 TO 7 MPH...INCREASING TO NORTHWEST 15 TO 25 MPH IN THE LATE MORNING AND AFTERNOON...THEN INCREASING TO 25 TO 30 MPH LATE. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).............37 46 44 44 48 49 WEATHER COV......... WEATHER TYPE........NONE NONE NONE NONE NONE NONE TSTM COV............ TEMP................41 42 49 54 58 61 RH..................60 59 50 44 40 38 20 FT WIND..........SW 2 W 3 W 7 W 10 W 10 W 10 20 FT WIND GUST.....5 10 20 25 25 25 CWR.................0 0 0 0 10 10 $$ FORECASTER...BEASLEY REQUESTED BY...ZACHARY PENNINGTON TYPE OF REQUEST...PRESCRIBED .TAG 20120407.WHITE.01/RNK