209
FNUS71 KRNK 221116
FWSRNK
SPOT FORECAST FOR WILHOIT...VA DOF
NATIONAL WEATHER SERVICE BLACKSBURG VA
716 AM EDT WED OCT 22 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON OCTOBER 22.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WIND AND RH VALUES LOOK TO BE LESS THAN IDEAL TODAY AS A COLD FRONT
HAS PASSED THROUGH THE AREA YESTERDAY LEADING TO GUSTY WINDS OF AROUND
20-25 MPH TODAY. THIS COMBINED WITH MINIMUM RH VALUES IN THE MID TO UPPER
20S THANKS TO SOME DOWNSLOPE WESTERLY WINDS OFF THE BLUE RIDGE WILL LEAD
TO AN INCREASED FIRE DANGER TODAY. WITH WINDS AND RH VALUES REACHING
CRITICAL THRESHOLDS, DISPERSIONS WILL SIMILARLY INCREASE TO ABOVE 110
WHICH IS QUITE HIGH LEADING TO A POSSIBLE OVER VENTILATED FIRE THAT
MAY GET OUT OF HAND. WITH THESE RH AND WIND VALUES, A FIRE DANGER
STATEMENT HAS BEEN ISSUED FOR TODAY FOR THE BURN LOCATION AND
SURROUNDING AREAS. WINDS DO LOOK TO REMAIN WESTERLY ALL DAY, BUT
ARE EXPECTED TO DIMINISH THROUGHOUT THE EVENING AS THE SUN GOES
DOWN, AND DEEP LAYER MIXING SLOWS DOWN.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 11 MPH. GUSTS UP TO 22 MPH LATE
IN THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL.
MIXING WINDS........WEST 8 TO 17 MPH INCREASING TO 21 TO 25 MPH
LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (3400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (94700 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (110100
KNOT-FT) IN THE AFTERNOON.
LVORI...............2.
ADI.................8 EARLY IN THE MORNING INCREASING TO 117 IN THE
AFTERNOON.
TIME (EDT) 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM
SKY (%).........1 0 0 0 3 3 6 5 2 2
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
TEMP............51 53 56 60 62 64 65 66 66 66
RH..............76 66 55 41 38 34 32 30 29 30
20 FT WIND DIR..W W W W W W W W W W
20 FT WIND SPD..6 6 7 9 10 10 11 10 10 9
20 FT WIND GUST.11 11 13 14 14 16 17 18 18 14
MIX HGT (KFT)...0.5 1.2 3.7 4.4 4.9 5.5 6.1 6.4 6.5 6.4
MIXNG WIND DIR..W W W W W W W W W W
MIXNG WIND SPD..8 12 17 21 22 23 23 24 25 24
LVORI...........3 2 1 1 1 1 1 1 1 1
ADI.............8 18 60 81 91 99 103 113 117 111
VRATE MPH-FT/1K.4 14 62 92 109 127 139 157 164 154
TONIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MIN TEMPERATURE.....AROUND 41.
MAX HUMIDITY........69 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 6 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTHWEST AROUND
5 MPH OVERNIGHT.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........WEST 12 TO 18 MPH DECREASING TO 5 TO 7 MPH
EARLY IN THE EVENING.
SMOKE DISPERSAL.....FAIR (26000 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1900 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............2.
ADI.................2 TO 39.
TIME (EDT) 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM
SKY (%).........2 2 2 1 2 2 9 4 3 5 4 5
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............63 58 55 53 51 50 49 48 46 45 44 44
RH..............33 41 44 48 50 52 53 56 59 60 63 63
20 FT WIND DIR..W W W W W W W W W SW SW SW
20 FT WIND SPD..6 5 4 4 4 4 5 5 5 5 5 5
20 FT WIND GUST.12 8 6 6 6 6 8 7 7 7 7 7
MIX HGT (KFT)...1.6 0.7 0.5 0.5 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5
MIXNG WIND DIR..W W W W W W W W W W W W
MIXNG WIND SPD..18 12 6 5 6 7 7 7 7 7 7 7
LVORI...........1 2 2 2 2 2 2 3 3 3 3 3
ADI.............39 5 3 2 2 3 3 3 3 3 3 3
VRATE MPH-FT/1K.30 8 3 2 3 3 3 3 3 3 3 3
THURSDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......6700 FT AGL.
MIXING WINDS........WEST 5 TO 14 MPH INCREASING TO 18 TO 23 MPH
LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (2100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (82200 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (102200
KNOT-FT) IN THE AFTERNOON.
LVORI...............2.
ADI.................3 EARLY IN THE MORNING INCREASING TO 109 IN THE
AFTERNOON.
TIME (EDT) 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM
SKY (%).........5 6 4 4 3 2 3 6 8 7 4 2
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............43 43 42 48 53 57 60 62 64 65 65 64
RH..............63 64 69 57 47 40 36 33 30 29 28 29
20 FT WIND DIR..SW SW SW W W W W W W W W W
20 FT WIND SPD..5 5 5 6 6 7 8 8 8 8 8 7
20 FT WIND GUST.7 7 7 10 12 14 14 14 14 14 14 14
MIX HGT (KFT)...0.5 0.5 0.5 1.5 2.8 3.9 4.6 5.5 6.3 6.5 6.6 6.7
MIXNG WIND DIR..SW SW SW W W W W W W W W W
MIXNG WIND SPD..6 5 6 9 14 18 21 22 22 23 23 22
LVORI...........3 3 3 2 1 1 1 1 1 1 1 1
ADI.............3 5 6 18 50 68 82 92 100 106 109 102
VRATE MPH-FT/1K.3 2 3 14 40 72 95 118 138 149 154 147
FORECASTER...BUNKER
REQUESTED BY...SHANE BURGESS
TYPE OF REQUEST...PRESCRIBED
.TAG 2524073.0/RNK
.DELDT 10/22/25
.FORMATTERVERSION 2.0.0
.EMAIL RICHARD.BURGESS@DOF.VIRGINIA.GOV
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