170
FNUS71 KRNK 270838
FWSRNK
SPOT FORECAST FOR ONE MILE...USFS
NATIONAL WEATHER SERVICE BLACKSBURG VA
438 AM EDT FRI MAR 27 2026
FORECAST IS BASED ON IGNITION TIME OF 0730 EDT ON MARCH 27.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A COLD FRONT IS EXPECTED TO PUSH THROUGH THE REGION DURING THE MID
MORNING HOURS TODAY. THIS WILL LEAD TO SCATTERED RAIN SHOWERS
NEAR THE PRESCRIBED BURN LOCATION. ALONG WITH RAIN SHOWERS, THE WINDS
ARE EXPECTED TO SHIFT FROM WESTERLY AHEAD OF THE FRONT TO NORTHWESTERLY
BEHIND THE FRONTAL PASSAGE. THIS WIND SHIFT IS EXPECTED TO OCCUR AROUND
THE 10AM-12PM TIMEFRAME. WINDS LOOK TO REMAIN OUT OF THE NORTHWEST
THROUGH THE REMAINDER OF FRIDAY AND SATURDAY AT THE BURN LOCATION.
ALONG WITH THE WIND SHIFT, WINDS LOOK TO INCREASE TO AROUND 5-10 MPH
WITH GUSTS UP TO 25 MPH. THESE WIND GUSTS ARE EXPECTED TO LINGER THROUGH
SATURDAY MORNING BEFORE DIMINISHING BY SATURDAY AFTERNOON AND EVENING.
MINIMUM RH VALUES LOOK TO REMAIN ELEVATED TODAY IN THE LOW 70S, BUT WILL
BOTTOM OUT INTO THE LOW 20% RANGE BY SATURDAY AFTERNOON.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
SHOWERS IN THE MORNING, THEN RAIN SHOWERS IN
THE AFTERNOON.
CWR (0.01 IN).......30 PERCENT DECREASING TO 20 PERCENT EARLY IN
THE MORNING, THEN INCREASING TO 90 PERCENT EARLY IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........68 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 7 MPH WITH GUSTS TO AROUND 22
MPH SHIFTING TO THE NORTHWEST 5 TO 6 MPH LATE
IN THE MORNING.
MIXING HEIGHT.......2100 FT AGL.
MIXING WINDS........WEST 17 TO 24 MPH SHIFTING TO THE NORTH 10 TO
15 MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....FAIR (14100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (42400 KNOT-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................17 TO 46.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........78 86 78 71 77 80 83 95 91 91 91
WEATHER COV.....CHC SCH CHC CHC SCH CHC LKY DEF DEF LKY CHC
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
CWR.............30 20 30 30 20 40 70 90 90 70 50
TEMP............60 59 58 62 63 64 62 62 61 57 55
RH..............82 85 89 78 75 70 71 68 70 73 74
20 FT WIND DIR..W W W NW NW NW NW NW N NW NW
20 FT WIND SPD..7 7 6 6 6 6 5 5 5 5 5
20 FT WIND GUST.22 21 19 16 14 14 13 12 12 13 12
MIX HGT (KFT)...2.1 2.1 2.1 2.1 2.1 1.9 1.8 1.6 1.7 1.6 1.6
MIXNG WIND DIR..W W W NW NW NW N N N N N
MIXNG WIND SPD..24 21 18 17 15 13 12 10 10 10 10
LVORI...........3 4 4 3 3 3 3 3 3 3 3
ADI.............46 41 37 33 29 25 21 18 17 17 17
VRATE MPH-FT/1K.49 44 40 35 31 25 21 16 17 16 16
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
PARTLY CLOUDY (25-35 PERCENT). CHANCE OF RAIN
SHOWERS EARLY IN THE EVENING. SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE EVENING.
CWR (0.01 IN).......30 PERCENT DECREASING TO 10 PERCENT EARLY IN
THE EVENING.
MIN TEMPERATURE.....AROUND 26.
MAX HUMIDITY........79 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 7 MPH. GUSTS UP TO 24 MPH
IN THE LATE EVENING AND OVERNIGHT.
MIXING HEIGHT.......1600 FT AGL.
MIXING WINDS........NORTHWEST 10 TO 17 MPH INCREASING TO 20 TO 22
MPH OVERNIGHT.
SMOKE DISPERSAL.....GOOD (45600 KNOT-FT) EARLY IN THE EVENING
DECREASING TO FAIR (14700 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............3.
ADI.................6 TO 26.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........93 89 62 57 40 33 38 45 25 23 17 13
WEATHER COV.....CHC SCH
WEATHER TYPE....RW RW
TSTM COV........
CWR.............30 10 20 10 0 0 0 0 0 0 0 0
TEMP............53 51 48 45 42 40 38 36 33 31 28 27
RH..............76 78 79 77 77 75 73 71 69 67 66 62
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..5 5 5 6 6 6 6 6 7 6 6 6
20 FT WIND GUST.13 14 14 16 17 18 18 19 19 19 19 19
MIX HGT (KFT)...1.7 1.6 1.6 1.7 2.0 2.0 2.2 2.6 2.2 2.1 2.4 2.4
MIXNG WIND DIR..N NW NW NW NW NW NW NW NW NW NW NW
MIXNG WIND SPD..10 10 12 13 15 16 17 20 21 21 22 22
LVORI...........3 4 4 4 4 4 3 3 3 3 3 2
ADI.............19 7 8 9 6 7 12 26 14 14 14 15
VRATE MPH-FT/1K.18 17 19 22 29 32 39 50 45 44 52 52
SATURDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........24 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH. GUSTS UP TO 23 MPH
IN THE MORNING AND EARLY AFTERNOON.
MIXING HEIGHT.......4700 FT AGL.
MIXING WINDS........NORTHWEST 17 TO 26 MPH.
SMOKE DISPERSAL.....GOOD (54100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (85900 KNOT-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................11 EARLY IN THE MORNING INCREASING TO 118 IN
THE AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........22 27 24 24 16 7 6 6 5 4 3 2
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............27 27 27 28 31 36 40 43 45 47 47 47
RH..............63 61 60 60 51 42 35 31 28 25 24 25
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..6 6 6 6 6 6 6 6 6 6 6 5
20 FT WIND GUST.18 18 18 18 18 17 17 16 16 14 14 12
MIX HGT (KFT)...2.6 2.8 3.3 3.8 4.0 4.3 4.4 4.6 4.7 4.7 4.7 4.7
MIXNG WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
MIXNG WIND SPD..23 25 26 26 24 23 22 21 20 18 18 17
LVORI...........2 1 1 1 1 1 1 1 1 1 1 1
ADI.............11 88 108 118 118 116 113 111 108 104 100 94
VRATE MPH-FT/1K.62 71 88 98 99 98 96 94 92 89 86 81
FORECASTER...BUNKER
REQUESTED BY...PHILIP BRASS
TYPE OF REQUEST...PRESCRIBED
.TAG 2608010.1/RNK
.DELDT 03/27/26
.FORMATTERVERSION 2.0.0
.EMAIL PHILIP.S.BRASS@USDA.GOV
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