ACUS11 KWNS 042247
SWOMCD
SPC MCD 042247=20
NJZ000-PAZ000-DEZ000-MDZ000-VAZ000-DCZ000-WVZ000-050045-

Mesoscale Discussion 1503
NWS Storm Prediction Center Norman OK
0547 PM CDT Sat Jul 04 2026

Areas affected...The Mid-Atlantic region

Concerning...Severe Thunderstorm Watch 457...459...

Valid 042247Z - 050045Z

The severe weather threat for Severe Thunderstorm Watch 457, 459
continues.

SUMMARY...The potential for damaging winds continues across the
greater Mid-Atlantic region. More focused corridors of higher wind
risk may emerge across southeastern Pennsylvania into northern
Maryland and across parts of central Virginia over the next couple
of hours.

DISCUSSION...Regional radar mosaics continue to show multiple
clusters of strong/severe thunderstorms with embedded swaths of
stronger winds. Most wind reports so far have been in the 35-55 mph
range, but occasional severe gusts and multiple reports of wind
damage have been noted over the past hour. Regional VWPs continue to
sample relatively weak deep-layer wind shear that will maintain outflow-dominant mutli-cell and clustered storm modes through late
evening. However, surface temperatures remain fairly hot (upper 90s
to low 100s) with steep low-level lapse rates noted across northern
MD into southeastern PA, and across parts of central VA where
convective overturning has yet to occur.=20

For the next few hours, the expectation is for a continuation of poorly-organized multi-cell clusters with sporadic swaths of
damaging/severe winds across much of the region. The wind risk will
most likely be focused across central/southern VA where conditions
remain very hot and across east/southeast PA where multiple clusters
may converge and promote an uptick in thunderstorm coverage later
this evening.

..Moore.. 07/04/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-OSNRzJ7j3hZ0cmHVoNt53QuIIpG6LqKtX-WiG9Fl8hW3Yqu7s3OkDm1w8rNae22UG_HQiS6C= xWtJ_Y9W98sWWq4A04$ for graphic product...

ATTN...WFO...PHI...BGM...AKQ...CTP...LWX...RNK...

LAT...LON 37277934 38287852 39237802 39787805 40197820 40567816
40907774 41077678 41027598 40857542 40617497 40447482
40117480 37377708 37047742 36837785 36837820 36847861
36937893 37067920 37277934=20

MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


=3D =3D =3D
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* Origin: Capitol City Weather Station (1:2320/127)