282
FNUS71 KRNK 201249
FWSRNK
SPOT FORECAST FOR BRUSH MOUNTAIN EAST FUELS BREAK...US FOREST SERVICE
NATIONAL WEATHER SERVICE BLACKSBURG VA
849 AM EDT FRI MAR 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON MARCH 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WARMER TODAY UNDER MOSTLY CLEAR SKIES. TEMPERATURES RISE INTO THE MID
TO UPPER 60S WITH RH VALUES FALLING INTO THE MID TO LOWER 30 PERCENT
RANGE. BETTER MIXING TODAY AND WINDS SLIGHTLY HIGHER, FROM THE SOUTHWEST.
AROUND 10MPH BY THIS AFTERNOON WITH GUSTS POSSIBLY INTO THE 20 MPH RANGE
AT TIMES. SHOULD SEE WINDS DECREASE SOME AFTER SUNSET...NOT AS GUSTY, BUT
COULD REMAIN SUSTAINED AROUND 10MPH OR LESS ON MORE EXPOSED RIDGES.
WARMER AGAIN ON SATURDAY WITH WINDS TRANSITIONING FROM THE WEST.
SLIGHTLY LESS WITH GUSTS AROUND 10MPH. MIN RH SLIGHTLY HIGHER, INTO
THE MID 30 PERCENT RANGE.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). ISOLATED RAIN
SHOWERS LATE IN THE AFTERNOON.
CWR (0.01 IN).......0 PERCENT INCREASING TO 20 PERCENT LATE IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH WITH
GUSTS TO AROUND 18 MPH IN THE AFTERNOON.
MIXING HEIGHT.......4800 FT AGL.
MIXING WINDS........SOUTHWEST 7 TO 16 MPH INCREASING TO 20 TO 29
MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (96300 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (91900
KNOT-FT) LATE IN THE AFTERNOON.
LVORI...............3.
ADI.................7 EARLY IN THE MORNING INCREASING TO 112 IN THE
AFTERNOON.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........27 38 39 58 70 77 77 78 70
WEATHER COV..... ISO
WEATHER TYPE.... RW
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 20
TEMP............40 48 54 60 63 65 67 66 66
RH..............77 62 55 46 42 41 39 40 40
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..2 2 3 4 5 6 6 6 6
20 FT WIND GUST.10 10 12 14 16 17 18 18 18
MIX HGT (KFT)...0.4 0.8 1.3 2.8 4.2 4.8 4.7 4.3 3.7
MIXNG WIND DIR..W SW SW SW SW SW SW SW SW
MIXNG WIND SPD..7 9 13 16 20 23 26 29 29
LVORI...........4 3 2 1 1 1 1 1 1
ADI.............7 10 22 57 97 94 107 112 103
VRATE MPH-FT/1K.3 7 17 45 82 111 125 125 106
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT). ISOLATED RAIN
SHOWERS EARLY IN THE EVENING. SCATTERED RAIN
SHOWERS LATE IN THE EVENING, THEN ISOLATED RAIN
SHOWERS OVERNIGHT.
CWR (0.01 IN).......20 PERCENT DECREASING TO 10 PERCENT LATE IN THE
EVENING, THEN INCREASING TO 40 PERCENT LATE IN
THE EVENING INCREASING TO 50 PERCENT OVERNIGHT
DECREASING TO 40 PERCENT DECREASING TO 20
PERCENT OVERNIGHT DECREASING TO 10 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 6 MPH WITH GUSTS TO AROUND
18 MPH IN THE EVENING AND OVERNIGHT BECOMING
LIGHT.
MIXING HEIGHT.......600 FT AGL.
MIXING WINDS........SOUTHWEST 18 TO 24 MPH SHIFTING TO THE WEST 7
TO 16 MPH EARLY IN THE EVENING.
SMOKE DISPERSAL.....GOOD (45500 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (4100 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............4.
ADI.................63 EARLY IN THE EVENING DECREASING TO 3 LATE IN
THE NIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........73 72 79 61 42 66 67 66 54 68 70 65
WEATHER COV.....ISO ISO ISO SCT SCT SCT ISO
WEATHER TYPE....RW RW RW RW RW RW RW
TSTM COV........
CWR.............20 20 20 10 10 40 50 40 20 10 0 0
TEMP............65 62 59 58 57 56 55 55 55 54 54 53
RH..............42 46 51 56 60 64 68 72 78 80 83 86
20 FT WIND DIR..SW SW SW SW SW W W W W W W W
20 FT WIND SPD..6 5 5 5 5 5 5 5 5 4 4 3
20 FT WIND GUST.18 18 17 17 17 16 16 16 16 14 14 13
MIX HGT (KFT)...2.2 0.7 0.7 0.7 0.6 0.7 0.6 0.7 1.0 0.9 0.8 0.7
MIXNG WIND DIR..SW SW SW SW SW SW W W W W W W
MIXNG WIND SPD..24 18 14 13 14 15 15 16 15 13 9 7
LVORI...........1 2 2 2 3 2 3 3 4 4 4 6
ADI.............63 12 9 8 9 10 10 11 10 8 6 3
VRATE MPH-FT/1K.52 13 10 9 8 10 9 11 16 12 8 5
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
MOSTLY SUNNY (35-45 PERCENT).
CWR (0.01 IN).......10 PERCENT.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........41 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......4300 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 14 MPH.
SMOKE DISPERSAL.....POOR (2600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (43200 KNOT-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................3 EARLY IN THE MORNING INCREASING TO 59 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........68 85 85 84 79 74 71 68 65 54 44 33
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 10 10 10 10
TEMP............54 52 53 54 57 60 64 66 68 70 70 70
RH..............89 93 89 88 80 71 62 54 48 44 41 41
20 FT WIND DIR..W W W W NW NW NW W W W W W
20 FT WIND SPD..3 2 2 2 2 2 3 3 3 3 3 3
20 FT WIND GUST.12 12 11 11 11 11 11 11 10 10 10 10
MIX HGT (KFT)...0.6 0.6 0.6 1.2 1.7 1.9 2.3 2.7 3.1 3.5 3.9 4.3
MIXNG WIND DIR..W W W W NW NW NW NW NW NW W W
MIXNG WIND SPD..6 5 6 8 12 14 14 13 12 12 12 12
LVORI...........6 6 6 5 3 3 1 1 1 1 1 1
ADI.............3 4 4 12 25 34 40 43 45 49 54 59
VRATE MPH-FT/1K.3 3 4 9 20 27 31 34 36 41 45 50
FORECASTER...GRUVER
REQUESTED BY...WILLIAM BRIMM
TYPE OF REQUEST...PRESCRIBED
.TAG 2606754.0/RNK
.DELDT 03/20/26
.FORMATTERVERSION 2.0.0
.EMAIL WILLIAM.BRIMM@USDA.GOV,ROBERT.CLAYTOR@USDA.GOV
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