Spot Forecast
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
474
FNUS71 KRNK 271155
FWSRNK
Spot Forecast for Pryor RX Burn...North Carolina Forest Service
National Weather Service Blacksburg VA
755 AM EDT Wed Aug 27 2025
Forecast is based on ignition time of 0800 EDT on August 27.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Inversion gradually erodes through 10am, with better mixing by
11am-noon into the afternoon. Mixing winds will be light from
the northwest but expect good mixing heights this afternoon. Min
RH will be in the 35-40 percent range under mainly sunny skies.
Inversion sets up again between 7-8pm this evening.
Thursday is another decent day though could have more high clouds
around earlier in the day and Min RH will be 40-45 percent, while
mixing winds shift to the southwest Thursday afternoon.
.TODAY...
Sky/weather.........Sunny (0-10 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 77.
Min humidity........37 percent.
Wind (20 ft)........Light winds becoming north around 5 mph late in
the morning, then becoming light in the
afternoon.
Mixing height.......8100 ft AGL.
Mixing winds........Northwest 3 to 7 mph.
Smoke dispersal.....Poor (1600 knot-ft) early in the morning
increasing to good (35600 knot-ft) in the
afternoon.
LVORI...............2.
ADI.................4 early in the morning increasing to 50 in the
afternoon.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........0 0 2 7 4 9 6 3 4 8
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0
Temp............59 64 69 71 73 74 75 77 77 76
RH..............74 63 55 48 44 43 41 39 37 39
20 FT wind dir..NW N N N N N N NW NW NW
20 FT wind spd..3 3 4 5 4 4 3 3 2 2
20 FT wind gust.7 7 7 8 7 7 6 6 6 6
Mix hgt (kft)...0.4 1.2 3.0 5.2 6.4 7.2 7.6 7.9 8.0 8.1
Mixng wind dir..N N N N N NW NW NW NW NW
Mixng wind spd..5 6 6 7 7 6 5 5 3 3
LVORI...........3 3 2 1 1 1 1 1 1 1
ADI.............4 8 24 45 50 47 41 39 37 33
VRate mph-ft/1K.2 7 19 36 41 40 35 33 32 28
.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent) then becoming
mostly cloudy (45-55 percent) then becoming
partly cloudy (40-50 percent).
CWR (0.01 in).......0 percent.
Min temperature.....Around 54.
Max humidity........79 percent.
Wind (20 ft)........Light winds.
Mixing height.......300 ft AGL.
Mixing winds........Northwest 1 to 2 mph shifting to the north 0 to
2 mph early in the evening.
Smoke dispersal.....Fair (15100 knot-ft) early in the evening
decreasing to poor (0 knot-ft) late in the
night.
LVORI...............3.
ADI.................0 to 20.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........6 7 8 12 11 24 39 40 34 52 45 43
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............75 73 69 65 63 62 60 59 58 57 56 55
RH..............42 47 54 60 65 66 70 72 73 77 78 77
20 FT wind dir..NW N S S N SW N N W W W W
20 FT wind spd..1 1 1 1 0 1 0 0 1 1 1 1
20 FT wind gust.5 4 4 2 2 2 2 2 2 2 2 2
Mix hgt (kft)...7.8 1.0 0.4 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.4 0.4
Mixng wind dir..NW W N N N NE NE N N N N N
Mixng wind spd..2 1 0 0 0 1 1 2 2 2 1 1
LVORI...........2 2 2 3 4 4 4 4 3 4 4 4
ADI.............20 0 0 0 0 1 1 1 1 1 1 1
VRate mph-ft/1K.17 1 0 0 0 0 1 1 1 1 1 0
.THURSDAY...
Sky/weather.........Mostly sunny (35-45 percent).
CWR (0.01 in).......0 percent.
Max temperature.....Around 80.
Min humidity........43 percent.
Wind (20 ft)........Light winds.
Mixing height.......7200 ft AGL.
Mixing winds........North around 1 to 5 mph shifting to the
southwest 7 to 12 mph in the afternoon.
Smoke dispersal.....Poor (300 knot-ft) early in the morning
increasing to excellent (61400 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................0 early in the morning increasing to 85 in the
afternoon.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........56 33 48 24 40 56 50 43 37 37 37 37
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............55 54 56 62 68 72 75 77 78 79 79 78
RH..............78 79 77 66 58 53 48 45 44 43 44 46
20 FT wind dir..NW NW NW W SW S S S SW SW SW SW
20 FT wind spd..1 1 1 1 1 2 2 3 4 4 4 4
20 FT wind gust.2 2 2 2 4 5 6 6 7 7 7 7
Mix hgt (kft)...0.4 0.4 0.3 0.7 1.3 2.3 4.4 5.8 7.2 6.7 6.2 5.7
Mixng wind dir..N N N NE SE S S SW SW SW SW SW
Mixng wind spd..1 1 1 1 1 2 5 7 9 10 12 10
LVORI...........4 4 4 3 3 2 2 1 1 1 1 1
ADI.............0 1 1 1 2 7 25 50 79 85 83 73
VRate mph-ft/1K.0 0 0 1 2 5 19 41 66 71 68 59
$$
Forecaster...Perry
Requested by...Cody Mathis
Type of request...PRESCRIBED
.TAG 2520810.0/RNK
.DELDT 08/27/25
.FormatterVersion 2.0.0
.EMAIL d10opsrm@ncagr.gov