994
FNUS71 KRNK 301014
FWSRNK
SPOT FORECAST FOR COATES BURN...VIRGINIA DEPARTMENT OF FORESTRY
NATIONAL WEATHER SERVICE BLACKSBURG VA
614 AM EDT WED SEP 30 2026
FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON SEPTEMBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EARLY MORNING STRATUS AND FOG WILL LINGER THROUGH THE MID MORNING
HOURS BEFORE EVENTUALLY GIVING WAY TO PARTLY CLOUDY SKIES AS AN
UPPER LEVEL CIRRUS DECK MOVES INTO THE REGION. SOME ISOLATED LOW LEVEL
CU MAY ALSO DEVELOP AT THE TOP OF THE BOUNDARY LAYER BY THE NOON HOUR.
WINDS TODAY WILL PREDOMINANTLY REMAIN LIGHT IN THE 5-10 MPH RANGE OUT
OF THE SOUTHWEST. WITH DRY AIR STILL IN PLACE OVER THE REGION, MINIMUM
RH VALUES LOOK TO DROP INTO THE MID TO UPPER 30S AT THE LOCATION OF THE
PRESCRIBED BURN BY THIS AFTERNOON. THIS IS PARTIALLY DUE TO WARMER
TEMPERATURES AND SOME SUBTLE DOWNSLOPING TODAY. WHILE RH VALUES LOOK
TO DROP DOWN INTO THE MID TO UPPER 30S, WINDS WILL BE OF LITTLE CONCERN.
MIXING HEIGHTS WILL ALSO CLIMB INTO THE IDEAL RANGE OF 5000-6000 FEET
BY THIS AFTERNOON. OVERALL, THERE ARE NO FIRE WEATHER CONCERNS AT THE SPOT
LOCATION TODAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH.
MIXING HEIGHT.......5800 FT AGL.
MIXING WINDS........SOUTHWEST 6 TO 7 MPH.
SMOKE DISPERSAL.....FAIR (24300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (35000 KNOT-FT) IN THE
AFTERNOON.
LVORI...............1.
ADI.................32 TO 45.
TIME (EDT) 1PM 2PM 3PM 4PM 5PM
SKY (%).........28 37 25 21 33
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0
TEMP............83 84 85 86 86
RH..............49 45 42 39 38
20 FT WIND DIR..SW SW SW S S
20 FT WIND SPD..5 5 5 5 5
20 FT WIND GUST.8 8 8 8 8
MIX HGT (KFT)...4.8 5.6 5.7 5.8 5.8
MIXNG WIND DIR..SW SW SW SW SW
MIXNG WIND SPD..6 6 7 7 7
LVORI...........1 1 1 1 1
ADI.............32 36 41 45 45
VRATE MPH-FT/1K.28 32 36 40 40
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT).
CWR (0.01 IN).......0 PERCENT.
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........94 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........SOUTH 2 TO 6 MPH.
SMOKE DISPERSAL.....FAIR (14600 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (700 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............5.
ADI.................1 TO 21.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........47 46 38 39 42 40 72 68 61 30 42 34
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............83 80 73 70 69 67 65 64 63 62 60 59
RH..............43 49 60 65 70 75 79 83 85 87 91 92
20 FT WIND DIR..S S S S S S S S S SW S SW
20 FT WIND SPD..4 4 3 3 3 3 2 2 2 2 2 2
20 FT WIND GUST.7 6 6 6 5 6 5 5 5 5 5 5
MIX HGT (KFT)...3.1 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
MIXNG WIND DIR..SW S S S S S S S S S S S
MIXNG WIND SPD..6 3 2 2 3 3 3 2 2 2 2 2
LVORI...........2 2 3 3 3 4 4 5 5 6 7 7
ADI.............21 2 1 1 1 2 1 1 1 1 1 1
VRATE MPH-FT/1K.17 3 1 1 1 1 1 1 1 1 1 1
FORECASTER...BUNKER
REQUESTED BY...JON A. WILLOUGHBY
TYPE OF REQUEST...PRESCRIBED
.TAG 2622814.0/RNK
.DELDT 09/30/26
.FORMATTERVERSION 2.0.0
.EMAIL JON.WILLOUGHBY@DOF.VIRGINIA.GOV
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