017
FNUS71 KRNK 201411
FWSRNK
SPOT FORECAST FOR NORTH FORK RX...USFS
NATIONAL WEATHER SERVICE BLACKSBURG VA
1011 AM EDT FRI MAR 20 2026
FORECAST IS BASED ON IGNITION TIME OF 1800 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 WINDS, WITH GUSTS AROUND 10MPH. MIN RH SLIGHTLY
HIGHER, INTO THE MID 30 PERCENT RANGE.
SUNDAY, WINDS WILL RETURN BACK TO SOUTHWEST AND WILL BE INCREASE
AGAIN. SUSTAINED AROUND 10MPH WITH SOME GUSTS REACHING INTO THE
20MPH RANGE THROUGHOUT THE AFTERNOON. SUNDAY WILL BE THE WARMEST
DAY, WITH RH VALUES STILL IN THE MID 30 PERCENT RANGE.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). RAIN SHOWERS
LIKELY IN THE EVENING, THEN SCATTERED RAIN
SHOWERS OVERNIGHT.
CWR (0.01 IN).......40 PERCENT DECREASING TO 30 PERCENT EARLY IN
THE EVENING, THEN INCREASING TO 50 PERCENT LATE
IN THE EVENING INCREASING TO 60 PERCENT LATE IN
THE EVENING DECREASING TO 50 PERCENT DECREASING
TO 20 PERCENT OVERNIGHT DECREASING TO 10
PERCENT.
MIN TEMPERATURE.....AROUND 47.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 6 MPH WITH GUSTS TO AROUND 18
MPH BECOMING AROUND 5 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........SOUTHWEST 18 TO 25 MPH BECOMING WEST 6 TO 12
MPH EARLY IN THE EVENING, THEN SHIFTING TO THE
NORTHWEST AROUND 5 MPH OVERNIGHT.
SMOKE DISPERSAL.....GOOD (52100 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1400 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............4.
ADI.................53 EARLY IN THE EVENING DECREASING TO 3 LATE IN
THE NIGHT.
TIME (EDT) 6 PM 9 PM MIDNGT 3 AM
SKY (%).........77 65 69 64
WEATHER COV.....SCTTRD SCTTRD SCTTRD
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE
TSTM COV........
CWR.............40 30 50 10
TEMP............61 54 52 51
RH..............47 65 80 89
20 FT WIND......SW 6G18 W 6G17 W 6G14 W 6G13
MIX HGT (FT)....2400 500 500 400
MIXING WIND......SW 25 SW 9 W 8 NW 5
LVORI...........1 3 4 6
ADI.............53 6 5 3
VRATE MPH-FT/1K.60 5 4 2
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT) THEN BECOMING
SUNNY (20-30 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......4700 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 8 MPH.
SMOKE DISPERSAL.....POOR (1200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (33000 KNOT-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................3 EARLY IN THE MORNING INCREASING TO 44 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........78 81 78 61 59 56 55 55 54 44 33 23
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............49 48 48 49 53 58 62 64 66 67 67 66
RH..............92 93 90 89 79 65 56 48 43 40 38 39
20 FT WIND DIR..NW NW NW NW NW NW NW W W W W W
20 FT WIND SPD..4 4 3 3 3 4 4 5 5 5 5 5
20 FT WIND GUST.12 11 10 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...0.3 0.3 0.3 0.8 1.1 1.4 2.1 3.0 3.8 4.1 4.4 4.7
MIXNG WIND DIR..NW NW NW NW NW NW NW NW W W W W
MIXNG WIND SPD..5 6 6 6 7 7 7 8 8 8 8 8
LVORI...........6 6 6 6 4 3 2 2 2 1 1 1
ADI.............3 6 4 4 9 12 18 26 29 39 42 44
VRATE MPH-FT/1K.1 2 2 4 7 9 15 24 30 33 36 38
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........96 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......100 FT AGL.
MIXING WINDS........SOUTHWEST 2 TO 7 MPH DECREASING TO AROUND 2 MPH
OVERNIGHT.
SMOKE DISPERSAL.....FAIR (19200 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (300 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............5.
ADI.................1 TO 27.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........24 24 25 24 23 22 23 23 24 29 35 40
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............64 62 59 56 53 50 48 47 46 46 46 46
RH..............42 48 55 62 69 75 81 85 88 90 91 91
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..4 3 2 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.10 7 6 6 6 6 6 6 6 6 6 6
MIX HGT (KFT)...3.2 1.7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1
MIXNG WIND DIR..W W W W SW SW SW SW SW SW SW SW
MIXNG WIND SPD..7 6 5 5 3 3 3 2 2 2 2 2
LVORI...........2 2 3 3 3 4 5 5 6 7 7 7
ADI.............27 3 2 2 2 2 2 1 1 1 1 1
VRATE MPH-FT/1K.22 10 1 1 1 1 1 0 0 0 0 0
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH WITH
GUSTS TO AROUND 18 MPH LATE IN THE MORNING.
MIXING HEIGHT.......5900 FT AGL.
MIXING WINDS........WEST 2 TO 8 MPH INCREASING TO 17 TO 23 MPH.
SMOKE DISPERSAL.....POOR (200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (96700 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (88400
KNOT-FT) LATE IN THE AFTERNOON.
LVORI...............5.
ADI.................1 EARLY IN THE MORNING INCREASING TO 114 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........41 43 44 39 34 29 27 25 23 19 16 12
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............45 44 46 50 56 63 68 72 75 76 77 76
RH..............94 96 94 87 78 68 59 50 44 41 39 39
20 FT WIND DIR..W W W W SW SW SW W W W W W
20 FT WIND SPD..2 2 2 3 4 5 6 6 7 7 7 6
20 FT WIND GUST.7 7 8 10 11 13 14 17 18 18 18 17
MIX HGT (KFT)...0.1 0.1 0.1 0.6 1.0 1.5 2.6 3.7 4.8 5.2 5.5 5.9
MIXNG WIND DIR..SW W W W W W W W W W W W
MIXNG WIND SPD..2 2 3 6 8 12 16 21 23 23 21 17
LVORI...........7 8 6 5 4 3 1 1 1 1 1 1
ADI.............1 2 4 6 11 23 53 93 94 97 90 114
VRATE MPH-FT/1K.0 0 0 3 8 17 42 77 111 119 115 102
FORECASTER...GRUVER
REQUESTED BY...SAMUEL URFFER
TYPE OF REQUEST...PRESCRIBED
.TAG 2606782.0/RNK
.DELDT 03/20/26
.FORMATTERVERSION 2.0.0
.EMAIL SAMUEL.URFFER@USDA.GOV
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