884
FNUS71 KRNK 101205
FWSRNK
SPOT FORECAST FOR GRAYSON HIGHLANDS STATE PARK RX BURN...DCR/VIRGINIA STATE PARKS
NATIONAL WEATHER SERVICE BLACKSBURG VA
805 AM EDT FRI APR 10 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON APRIL 10.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
BLUE SKY DAY WITH DECENT MIXING ONCE THE AFTERNOON ARRIVES.
MIXING WINDS WILL SIT BETWEEN 10-15 MPH OUT OF THE WEST
TODAY, AND LOW RELATIVE HUMIDITY DROPPING DOWN TO 30% IN THE AFTERNOON
WILL BE CONDUCIVE TO BURNING.
SATURDAY WILL BE SIMILAR, WITH HIGHER RELATIVE HUMIDITY IN THE AFTERNOON
WHICH ONLY REACHES NEAR 50%. WINDS WILL ALSO BE STRONGER, AND SHIFT
TO THE NORTHWEST. THERE MAY BE SOME SURFACE GUSTS UP TO 20 MPH
AS WELL.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......4500 FT AGL.
MIXING WINDS........WEST 2 TO 9 MPH INCREASING TO 8 TO 12 MPH LATE
IN THE MORNING.
SMOKE DISPERSAL.....POOR (100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (34900 KNOT-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................2 EARLY IN THE MORNING INCREASING TO 47 IN THE
AFTERNOON.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........0 0 0 0 0 0 0 5 7 9
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
TEMP............44 48 53 58 60 62 63 64 63 63
RH..............46 44 40 36 34 33 31 30 30 31
20 FT WIND DIR..W NW W W W W W W W W
20 FT WIND SPD..4 4 4 4 4 5 5 5 6 6
20 FT WIND GUST.8 8 8 10 13 13 13 14 14 14
MIX HGT (KFT)...0.1 0.1 1.0 1.9 2.8 3.8 4.5 4.5 4.5 4.4
MIXNG WIND DIR..SW W W NW W W W W W W
MIXNG WIND SPD..2 6 9 12 12 9 8 8 9 9
LVORI...........2 2 2 2 1 1 1 1 1 1
ADI.............2 5 11 29 41 46 45 46 47 47
VRATE MPH-FT/1K.0 1 9 22 31 36 36 37 40 40
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........67 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 6 MPH.
MIXING HEIGHT.......0 FT AGL.
MIXING WINDS........WEST 5 TO 9 MPH.
SMOKE DISPERSAL.....FAIR (25900 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (200 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............2.
ADI.................2 TO 36.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........0 0 7 13 11 11 14 15 12 13 13 22
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............61 58 54 52 50 49 49 49 48 48 48 47
RH..............32 36 42 45 49 52 53 53 56 59 61 65
20 FT WIND DIR..W W W W W W W W W W W NW
20 FT WIND SPD..6 6 6 6 6 6 6 6 6 6 6 6
20 FT WIND GUST.14 14 12 12 12 12 12 13 13 13 13 13
MIX HGT (KFT)...3.4 1.8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
MIXNG WIND DIR..W W W W W W W W W W W W
MIXNG WIND SPD..9 8 7 6 5 5 5 6 6 6 6 6
LVORI...........1 2 2 2 2 2 2 2 3 3 3 3
ADI.............36 4 3 3 2 2 2 2 3 3 3 4
VRATE MPH-FT/1K.30 14 1 0 0 0 0 0 0 0 0 0
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CWR (0.01 IN).......10 PERCENT.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........51 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH. GUSTS UP TO 22 MPH
IN THE LATE MORNING AND EARLY AFTERNOON.
MIXING HEIGHT.......3600 FT AGL.
MIXING WINDS........WEST 3 TO 9 MPH SHIFTING TO THE NORTHWEST 10 TO
18 MPH IN THE LATE MORNING AND EARLY AFTERNOON,
THEN SHIFTING TO THE WEST 7 TO 8 MPH LATE IN
THE AFTERNOON.
SMOKE DISPERSAL.....POOR (200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (43400 KNOT-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................4 EARLY IN THE MORNING INCREASING TO 62 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........41 51 48 38 33 28 29 31 35 35 35 35
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 10 10 10 10
TEMP............47 48 49 51 54 57 59 61 62 63 63 63
RH..............66 66 67 67 65 64 61 57 54 52 51 52
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..6 6 6 6 7 8 8 7 6 6 5 5
20 FT WIND GUST.13 14 14 14 16 18 18 18 16 14 14 12
MIX HGT (KFT)...0.1 0.1 0.1 0.6 1.5 1.9 2.8 3.2 3.6 3.5 3.4 3.3
MIXNG WIND DIR..W W W W NW NW NW NW NW NW W W
MIXNG WIND SPD..5 3 5 9 15 18 18 16 13 10 8 7
LVORI...........3 3 3 3 3 1 1 1 1 1 1 2
ADI.............4 4 5 9 28 45 62 61 56 45 37 30
VRATE MPH-FT/1K.0 0 0 5 21 35 50 50 46 37 29 23
FORECASTER...JOYNER
REQUESTED BY...JORDON BLEVINS
TYPE OF REQUEST...PRESCRIBED
.TAG 2609938.0/RNK
.DELDT 04/10/26
.FORMATTERVERSION 2.0.0
.EMAIL JORDON.BLEVINS@DCR.VIRGINIA.GOV
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