958
FNUS71 KLWX 171146
FWSLWX

Spot Forecast for Lyndhurst Ponds RX...VA DCR NH
National Weather Service Baltimore MD/Washington DC
746 AM EDT Thu Apr 17 2025

Forecast is based on ignition time of 0800 EDT on April 17.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

High pressure will build into the area through today before moving
offshore tonight. Light winds, RHs in the mid 20s, and sunny skies
can be expected today. A warm front will pass through Friday, and high
pressure to the south will dominate the weather pattern for
Saturday.  With southerly winds, RHs recover slightly to the mid 30s.
A cold front will pass through late in the weekend before settling to
the south early next week.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent). Areas of frost early in
                    the morning.
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 65.
Min humidity........25 percent.
Wind (20 ft)........Light winds becoming south around 5 mph late in
                    the afternoon.
Mixing height.......5300 ft AGL.
Transport winds.....West 5 to 6 mph increasing to 7 to 8 mph in the
                    afternoon.
Smoke dispersal.....Poor (2500 knot-ft) early in the morning
                    increasing to good (35800 knot-ft) in the
                    afternoon.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   0   0   1   3   3   4   23  24  35
Weather cov.....ARS ARS
Weather type....FST FST
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............38  43  48  53  56  59  62  64  65  65
RH..............64  53  46  38  32  30  26  25  26  26
20 FT wind dir..NW  NW  N   N   N   W   SW  SW  S   S
20 FT wind spd..2   2   2   2   2   3   3   3   5   5
20 FT wind gust.3   3   3   3   3   5   5   5   6   6
Mix hgt (kft)...0.6 2.1 3.0 3.7 4.3 4.6 5.0 5.1 5.3 5.1
Transp wind dir.NW  NW  W   W   W   W   W   W   W   SW
Transp wind spd.5   5   5   6   6   7   7   8   7   8
Vrate kt-ft/1K..3   8   12  19  21  28  30  36  32  36
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (60-70 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 47.
Max humidity........63 percent.
Wind (20 ft)........South winds 5 to 7 mph.
Mixing height.......500 ft AGL.
Transport winds.....South 9 to 12 mph.
Smoke dispersal.....Good (38800 knot-ft) early in the evening
                    decreasing to poor (4200 knot-ft) late in the
                    night.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........39  58  55  69  79  70  62  55  34  33  31  30
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............63  59  56  53  52  50  49  49  48  48  47  47
RH..............27  32  38  43  44  48  52  50  56  56  60  60
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..6   7   7   7   6   5   5   5   5   5   6   6
20 FT wind gust.7   8   8   8   7   6   6   6   6   6   7   7
Mix hgt (kft)...4.3 1.1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.10  9   9   10  10  10  10  10  10  10  10  12
Vrate kt-ft/1K..39  9   4   5   5   5   5   5   5   5   5   6
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.FRIDAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 76.
Min humidity........37 percent.
Wind (20 ft)........South winds 5 to 14 mph increasing to 16 to 18
                    mph in the afternoon.
Mixing height.......4400 ft AGL.
Transport winds.....South 9 to 15 mph increasing to southwest 20 to
                    28 mph in the late morning and afternoon.
Smoke dispersal.....Poor (4200 knot-ft) early in the morning
                    increasing to excellent (98600 knot-ft) in the
                    afternoon increasing to excellent (99300
                    knot-ft) late in the afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........33  37  40  30  20  10  11  13  14  15  17  18
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............47  49  51  56  62  67  70  72  74  75  76  76
RH..............63  61  61  55  48  43  41  39  38  38  37  37
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..5   5   5   7   10  14  16  16  17  18  18  18
20 FT wind gust.6   6   6   8   12  16  20  20  26  28  28  28
Mix hgt (kft)...0.5 0.5 0.5 1.4 2.1 2.6 3.0 3.4 4.1 4.3 4.4 4.1
Transp wind dir.S   S   S   S   SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.12  10  9   15  20  21  22  22  24  26  28  28
Vrate kt-ft/1K..5   5   4   18  36  46  57  66  86  99  105 99
Ventrate Cat....PR  PR  PR  PR  PR  FR  FR  GD  GD  GD  VGD GD

$$
Forecaster...Stuck
Requested by...R. Lepsch
Type of request...PRESCRIBED
.TAG 2510669.0/LWX
.DELDT 04/17/25
.FormatterVersion 2.0.0
.EMAIL Ryan.Lepsch@gmail.com,Ryan.Lepsch@dcr.virginia.gov