Subj : MESO: Mesoscale Discussion 1464
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Thu Jun 26 2025 22:57:48

ACUS11 KWNS 262256
SWOMCD
SPC MCD 262255=20
NJZ000-PAZ000-MDZ000-DEZ000-VAZ000-270030-

Mesoscale Discussion 1464
NWS Storm Prediction Center Norman OK
0555 PM CDT Thu Jun 26 2025

Areas affected...portions of southeastern Pennsylvania to the
DelMarVa and southern New Jersey

Concerning...Severe Thunderstorm Watch 464...

Valid 262255Z - 270030Z

The severe weather threat for Severe Thunderstorm Watch 464
continues.

SUMMARY...Damaging gusts will remain possible across the Mid
Atlantic this evening.

DISCUSSION...Across northeastern portions of WW464, a cluster of
thunderstorms has gradually taken on a more linear appearance early
this evening. The environment ahead of these storms is largely
pristine with moderate to large buoyancy and modestly steep
low-level lapse rates amid weak vertical shear. This will continue
to support strong updrafts with this convection through the early
evening hours. Additional storm development/intensification into a
loose QLCS appears likely as storms propagate east/southeastward
along a remnant coastal boundary. Locally greater forcing along this
boundary, and a strengthening cold pool should allow for increased
forward  propagation of the entire linear cluster. This suggests a
continued damaging gust threat is likely, particularly from southern
NJ, to eastern MD/PA and DE this evening.

...Lyons.. 06/26/2025

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!-5Ko8QItWeMe85WV9DZokoLdQPmeI9mxMATCVUfBa25o8_VnOxj-5VELJW1LyRp7xsl4Cpvv_=
4FsIbhicmuv47txZl0$  for graphic product...

ATTN...WFO...PHI...AKQ...CTP...LWX...

LAT...LON   39667675 40077642 40337565 39927492 39507447 39067474
            37947534 38077621 38507651 38937679 39367685 39667675=20

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


=3D =3D =3D
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