Spot Forecast
Issued by NWS Sterling, VA

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FNUS71 KLWX 111209
FWSLWX

Spot Forecast for Boat Ramp Fields...Virginia Department of Wildlife Resources
National Weather Service Baltimore MD/Washington DC
809 AM EDT Thu Sep 11 2025

Forecast is based on ignition time of 0800 EDT on September 11.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions
or concerns with this forecast.

.DISCUSSION...

A dry front will dissipate as it approaches the region today,
which will be followed by another area of Canadian high pressure
building in through the weekend.

Through Friday, afternoon minimum RH values will drop into the 30
to 40 percent range. Overnight RH recovery will be good through
this period as well, recovering to almost 100 percent. High
temperatures will gradually increase each day, with low to mid 80s.
Today and tomorrow will also feature at least some cloudcover during
the afternoon, albeit still mostly sunny.

Winds remain relatively light today and tomorrow, blowing out of the
north today before shifting to east/northeast tomorrow.

.REST OF TODAY...

Sky/weather.........Mostly sunny (35-45 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 80.
Min humidity........50 percent.
Wind (20 ft)........Light winds.
Mixing height.......6600 ft AGL.
Transport winds.....North 5 to 7 mph.
Smoke dispersal.....Poor (1400 knot-ft) early in the morning
                    increasing to good (33000 knot-ft) in the
                    afternoon.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........59  47  34  43  31  24  31  32  31  26
CWR.............0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0
Temp............60  64  69  73  75  77  79  80  80  79
RH..............96  93  81  71  64  60  54  51  49  50
20 FT wind dir..N   N   N   N   NE  NE  NE  NE  N   NE
20 FT wind spd..1   1   2   2   2   2   3   2   2   2
20 FT wind gust.6   6   7   7   8   7   8   8   8   9
Mix hgt (kft)...0.4 0.6 1.6 2.8 4.0 5.1 6.0 6.6 6.4 6.4
Transp wind dir.N   N   N   N   N   N   N   N   N   N
Transp wind spd.5   5   6   7   6   6   6   6   6   6
Vrate kt-ft/1K..1   3   8   17  20  26  30  33  32  32
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 55.
Max humidity........96 percent.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....Northeast around 6 mph shifting to the south
                    around 3 mph late in the
                    evening shifting to the west 5 to 6 mph
                    overnight shifting to the north.
Smoke dispersal.....Fair (20400 knot-ft) early in the evening
                    decreasing to poor (1200 knot-ft) late in the
                    night.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........9   21  19  1   3   8   12  10  14  20  18  17
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............77  74  69  65  63  62  61  60  58  58  57  56
RH..............52  62  70  81  87  90  90  90  96  93  93  93
20 FT wind dir..NE  NE  E   N   N   N   N   N   N   NW  N   N
20 FT wind spd..2   1   1   0   0   0   0   0   0   1   1   1
20 FT wind gust.7   6   3   3   3   3   3   3   3   5   5   6
Mix hgt (kft)...4.1 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.N   NE  E   SE  SE  S   W   W   NW  NW  N   N
Transp wind spd.6   6   5   6   5   3   5   5   6   5   6   5
Vrate kt-ft/1K..20  4   2   2   2   1   2   2   2   2   2   2
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.FRIDAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 80.
Min humidity........41 percent.
Wind (20 ft)........Light winds becoming northeast around 5 mph
                    late in the afternoon, then becoming light late
                    in the afternoon.
Mixing height.......6800 ft AGL.
Transport winds.....North 6 to 10 mph shifting to the northeast
                    around 9 mph late in the afternoon.
Smoke dispersal.....Poor (1800 knot-ft) early in the morning
                    increasing to good (57100 knot-ft) in the
                    afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........19  24  15  17  13  8   14  21  27  26  26  25
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............55  55  57  64  70  74  77  79  80  81  81  80
RH..............96  93  93  75  63  55  50  45  42  41  41  42
20 FT wind dir..N   N   N   N   N   N   N   NE  NE  NE  NE  NE
20 FT wind spd..2   2   2   2   2   3   3   5   5   5   5   3
20 FT wind gust.7   7   8   8   8   9   9   10  10  10  10  9
Mix hgt (kft)...0.4 0.4 0.4 1.1 1.7 3.4 5.5 6.3 6.4 6.8 6.8 6.2
Transp wind dir.N   N   N   N   N   N   N   NE  NE  NE  NE  NE
Transp wind spd.6   7   7   10  10  9   10  10  9   9   9   9
Vrate kt-ft/1K..2   2   2   10  16  27  50  57  51  54  54  50
Ventrate Cat....PR  PR  PR  PR  PR  PR  FR  FR  FR  FR  FR  FR

$$
Forecaster...Stuck
Requested by...Joe Ferdinandsen
Type of request...PRESCRIBED
.TAG 2521781.0/LWX
.DELDT 09/11/25
.FormatterVersion 2.0.0
.EMAIL joseph.ferdinandsen@dwr.virginia.gov