313
FNUS71 KLWX 191900
FWSLWX

Spot Forecast for severe weather check...Shenandoah National Park
National Weather Service Baltimore MD/Washington DC
300 PM EDT Thu Jun 19 2025

Forecast is based on forecast start time of 1500 EDT on June 19.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Heat and humidity continue ahead of a potent cold front that
looks to cross the region tonight. The front will bring a
widespread risk of severe weather to the area with damaging
winds, large hail, and heavy rainfall as the primary concerns.
Drier and less humid Friday into Saturday as high pressure builds
into the region. A prolonged period of excessive heat is expected
Sunday into the middle part of next week.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (75-85 percent). Showers and
                    scattered thunderstorms through late in
                    the afternoon.
Chance of pcpn......80 percent.
Chance of thunder...51 percent.
Max temperature.....Around 83.
Min humidity........60 percent.
Heat index..........MISSING.
Surface winds (mph).Southwest winds around 17 mph with gusts to
                    around 28 mph.

TIME (EDT)      3PM 4PM 5PM
Sky (%).........77  79  78
Weather cov.....DEF DEF NUM
Weather type....RW  RW  RW
Tstm cov........SCT SCT SCT
Chc of pcpn (%).80  80  70
Chc of thdr (%).50  50  40
Temp............79  79  78
RH..............60  62  64
Heat index (F)..M   M   M
Surface wnd dir.SW  SW  SW
Surface wnd spd.17  17  17
Surface wnd gst.28  28  28

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    mostly clear (10-20 percent). Scattered showers
                    and thunderstorms in the evening.
Chance of pcpn......50 percent.
Chance of thunder...37 percent.
Min temperature.....Around 58.
Max humidity........87 percent.
Heat index..........MISSING.
Surface winds (mph).West winds 14 to 17 mph with gusts to around 28
                    mph shifting to the northwest 9 to 14 mph with
                    gusts to around 26 mph late in the evening.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........73  64  62  51  26  25  25  14  6   4   6   8
Weather cov.....SCT SCT ISO
Weather type....RW  RW  RW
Tstm cov........SCT ISO
Chc of pcpn (%).50  40  20  10  10  0   0   0   0   0   0   0
Chc of thdr (%).40  20  10  10  10  0   0   0   0   0   0   0
Temp............77  75  73  71  69  67  66  64  62  61  60  59
RH..............62  66  71  76  78  81  81  84  84  87  87  87
Heat index (F)..M   M   M   M   M   M   M   M   M   M   M   M
Surface wnd dir.W   W   W   W   W   NW  NW  NW  NW  NW  NW  NW
Surface wnd spd.17  17  17  14  14  14  13  12  10  10  9   9
Surface wnd gst.28  28  24  28  26  26  25  24  22  21  20  18

.FRIDAY...

Sky/weather.........Sunny (5-15 percent).
Chance of pcpn......0 percent.
Chance of thunder...2 percent.
Max temperature.....Around 81.
Min humidity........52 percent.
Heat index..........MISSING.
Surface winds (mph).Northwest winds 5 to 8 mph.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   1   0   1   1   1   1   3   6   9   16  21
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).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............59  60  62  65  68  71  74  76  77  78  78  77
RH..............87  84  81  75  70  63  59  56  54  52  52  56
Heat index (F)..M   M   M   M   M   M   M   M   M   M   M   M
Surface wnd dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  W
Surface wnd spd.8   8   7   7   6   6   6   6   6   6   6   5
Surface wnd gst.17  16  16  16  15  15  14  14  14  13  13  12

$$
Forecaster...Witt
Requested by...K. Moses
Type of request...OTHER
.TAG 2516259.0/LWX
.DELDT 06/19/25
.FormatterVersion 2.0.0
.EMAIL shen_communication@nps.gov