045
FNUS71 KRNK 212123
FWSRNK
SPOT FORECAST FOR NORTH FORK RX...USFS
NATIONAL WEATHER SERVICE BLACKSBURG VA
523 PM EDT SAT MAR 21 2026
FORECAST IS BASED ON IGNITION TIME OF 2300 EDT ON MARCH 21.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
SKY COVER THIS AFTERNOON WILL GRADUALLY WANE, BECOMING CLEAR
DURING THE OVERNIGHT HOURS, WHILE WINDS ALSO DECREASE. AFTER THE
MORNING INVERSION BREAKS SUNDAY, WINDS TURN WESTERLY AT 5 TO 10
MPH, WITH GUSTS UP TO 20 MPH DURING THE AFTERNOON. TEMPERATURES
WILL REACH NEAR 80 DEGREES BY TOMORROW AFTERNOON UNDER MOSTLY
SUNNY SKIES. RH VALUES TOMORROW AFTERNOON WILL BE 30 TO 35%,
RECOVERING TO OVER 80% OVERNIGHT, THEN FALLS BACK TO NEAR 40% FOR
MONDAY.
CLOUDS INCREASE SUNDAY NIGHT AHEAD OF A COLD FRONT APPROACHING THE
AREA FROM THE NORTH. THIS SYSTEM WILL BRING CHANCES FOR RAIN
SHOWERS AND ISOLATED THUNDERSTORMS TO THE BURN LOCATION LATE
SUNDAY NIGHT INTO MONDAY MORNING, RAIN AMOUNTS UP TO A TWO TENTHS
OF AN INCH. PRECIPITATION LOOKS TO BE OUT OF THE AREA BY MONDAY
AFTERNOON. HOWEVER, GUSTY WESTERLY WINDS WILL PERSIST FROM SUNDAY
NIGHT THROUGH MONDAY, ESPECIALLY ALONG HIGHER RIDGES.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MIN TEMPERATURE.....AROUND 47.
MAX HUMIDITY........91 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........WEST 3 TO 5 MPH.
SMOKE DISPERSAL.....POOR (900 KNOT-FT).
TIME (EDT) 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........17 14 10 33 20 27 22
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0
TEMP............52 50 49 48 48 47 47
RH..............66 69 73 77 79 80 83
20 FT WIND DIR..W W W W W W W
20 FT WIND SPD..2 2 2 2 2 2 3
20 FT WIND GUST.4 4 4 5 5 6 6
MIX HGT (KFT)...0.3 0.3 0.3 0.3 0.3 0.3 0.3
MIXNG WIND DIR..W W W W W W W
MIXNG WIND SPD..3 3 3 3 3 5 5
VRATE MPH-FT/1K.1 1 1 1 1 1 1
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 8 MPH WITH GUSTS
TO AROUND 18 MPH IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......5600 FT AGL.
MIXING WINDS........WEST 5 TO 14 MPH INCREASING TO AROUND 26 MPH.
SMOKE DISPERSAL.....POOR (1300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (86400 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (116500
KNOT-FT) LATE IN THE AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........37 38 29 26 30 33 21 24 39 42 34 27
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............47 47 47 51 58 64 69 73 76 77 77 77
RH..............86 87 91 88 79 67 58 48 42 39 37 36
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..3 3 4 5 5 6 6 7 7 8 8 8
20 FT WIND GUST.6 7 8 10 12 14 17 18 18 18 18 18
MIX HGT (KFT)...0.3 0.3 0.4 0.6 1.2 1.7 2.3 3.3 4.3 4.8 5.4 5.6
MIXNG WIND DIR..W W W W W W W W W W W W
MIXNG WIND SPD..5 5 6 7 9 12 13 14 16 21 25 26
VRATE MPH-FT/1K.1 2 2 4 12 19 29 47 70 99 134 149
SUNDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). ISOLATED
THUNDERSTORMS OVERNIGHT. CHANCE OF RAIN SHOWERS
OVERNIGHT.
CWR (0.01 IN).......10 PERCENT INCREASING TO 50 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........84 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 7 MPH. GUSTS UP TO 21 MPH EARLY
IN THE EVENING THEN 23 MPH LATE IN THE EVENING.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........WEST 15 TO 22 MPH DECREASING TO 6 TO 8 MPH
EARLY IN THE EVENING.
SMOKE DISPERSAL.....EXCELLENT (76000 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (2600 KNOT-FT) LATE IN THE
NIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........31 17 11 19 26 34 46 57 69 76 84 91
WEATHER COV..... CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ ISO ISO ISO
CWR.............0 0 10 10 10 10 10 10 40 40 40 50
TEMP............76 73 70 68 67 65 65 64 64 62 61 59
RH..............38 42 47 51 56 61 64 67 70 74 77 80
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..7 6 6 7 7 7 7 7 6 6 6 6
20 FT WIND GUST.17 16 14 14 14 16 16 17 18 18 18 18
MIX HGT (KFT)...4.0 1.1 0.5 0.5 0.5 0.6 0.7 0.8 0.9 1.2 1.5 1.7
MIXNG WIND DIR..W W W W W W W W W W W W
MIXNG WIND SPD..22 15 8 6 6 7 7 7 7 7 7 8
VRATE MPH-FT/1K.87 15 4 3 3 4 5 5 6 8 11 14
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
MOSTLY SUNNY (20-30 PERCENT). CHANCE OF RAIN
SHOWERS EARLY IN THE MORNING.
CWR (0.01 IN).......50 PERCENT DECREASING TO 0 PERCENT EARLY IN THE
MORNING.
MAX TEMPERATURE.....AROUND 54.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 7 MPH WITH GUSTS TO AROUND
19 MPH.
MIXING HEIGHT.......4400 FT AGL.
MIXING WINDS........NORTHWEST 10 TO 17 MPH.
SMOKE DISPERSAL.....FAIR (15000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (66700 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........87 83 79 65 50 36 27 18 9 7 5 3
WEATHER COV.....CHC CHC
WEATHER TYPE....RW RW
TSTM COV........
CWR.............50 50 0 0 0 0 0 0 0 0 0 0
TEMP............57 55 53 52 52 51 51 52 52 52 52 51
RH..............83 84 83 78 72 66 59 53 48 44 41 40
20 FT WIND DIR..W NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..6 6 6 6 6 7 7 7 7 7 7 7
20 FT WIND GUST.18 18 18 19 19 19 19 19 19 19 19 18
MIX HGT (KFT)...1.7 1.7 1.8 2.0 2.2 2.4 2.7 3.1 3.4 3.7 4.1 4.4
MIXNG WIND DIR..NW NW N N N N N NW NW NW NW NW
MIXNG WIND SPD..10 12 14 15 15 15 15 16 16 16 17 17
VRATE MPH-FT/1K.17 21 24 29 33 36 42 48 54 62 70 77
FORECASTER...SAVA
REQUESTED BY...SAMUEL URFFER
TYPE OF REQUEST...PRESCRIBED
.TAG 2607020.0/RNK
.DELDT 03/21/26
.FORMATTERVERSION 2.0.0
.EMAIL SAMUEL.URFFER@USDA.GOV
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