Mesoscale Discussion 1375
NWS Storm Prediction Center Norman OK
0316 PM CDT Wed Jul 28 2021
Areas affected...Southeastern Virginia and eastern North Carolina
Concerning...Severe Thunderstorm Watch 398...
Valid 282016Z - 282215Z
The severe weather threat for Severe Thunderstorm Watch 398
SUMMARY...Wind gusts potential will continue within WW 398 as a
cluster of storms in northeast North Carolina moves southwest. The
greatest threat will likely be where cold pool interactions with the
sea breeze and storms moving out of the Piedmont occur.
DISCUSSION...The most prominent cluster of convection has recently
moved out of southeastern Virginia into northeastern North Carolina.
The most intense portion of this cluster has generally been on the
southeastern flank where its outflow has interacted with the sea
breeze front within the Coast Plain. To the west, convection
continues to increase within the surface trough in the Piedmont. As
the primary cluster moves southwestward into the greatest buoyancy
(2500 J/kg MLCAPE) along with slow progression of storms
southeastward away from the Piedmont may lead to additional cold
pool mergers and a subsequent threat for damaging wind gusts.
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