ACUS11 KWNS 040357
SWOMCD
SPC MCD 040356
MDZ000-DCZ000-VAZ000-040500-

Mesoscale Discussion 2227
NWS Storm Prediction Center Norman OK
1056 PM CDT Thu Sep 03 2026

Areas affected...northern Virginia and central Maryland

Concerning...Severe Thunderstorm Watch 652...

Valid 040356Z - 040500Z

The severe weather threat for Severe Thunderstorm Watch 652
continues.

SUMMARY...Damaging wind threat is increasing for the greater
Washington D.C. area.

DISCUSSION...Rapid thunderstorm development occurred late this
evening in the vicinity of Washington D.C. Here, warm-air advection thunderstorms combined with increasing convergence from an outflow
boundary from an earlier storm. The result has been a rapid increase
in hydrometeors aloft, which will support heavy water loaded downdrafts/downbursts capable of wind damage across the greater
Washington D.C. area. At 0348Z Washington National airport measured
a 64 mph wind gust. This threat will continue to move east over the
next hour.

..Marsh.. 09/04/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!6W5WmV9t7RaKP7EKa_aX_KGaqihrGO6vPLmr_d1ug5LvqI9KG5Th68bcq0FxGeMJlcUvKZDVer6EbQNdQs6LBljto4I$ for graphic product...

ATTN...WFO...PHI...LWX...

LAT...LON 39067724 39157691 39117648 38947629 38777634 38617657
38647704 38767728 39067724

MOST PROBABLE PEAK WIND GUST...55-70 MPH


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--- scorpsmtpd
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