Subj : MESO: Mesoscale Discussion 1258
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Jun 25 2023 19:55:18

ACUS11 KWNS 251955
SWOMCD
SPC MCD 251954=20
NCZ000-GAZ000-TNZ000-ALZ000-252100-

Mesoscale Discussion 1258
NWS Storm Prediction Center Norman OK
0254 PM CDT Sun Jun 25 2023

Areas affected...portions of middle and southern Tennessee into
northern Alabama and northwest Georgia

Concerning...Severe Thunderstorm Watch 376...377...

Valid 251954Z - 252100Z

The severe weather threat for Severe Thunderstorm Watch 376, 377
continues.

SUMMARY...The severe threat continues across Severe Thunderstorm
Watch 376 into 377. Large hail remains the main threat with the more
discrete storms, with damaging gusts the biggest concern with a
southward-sagging MCS.

DISCUSSION...An MCS with a history of damaging gusts continues to
propagate southward in middle/eastern TN toward GA, while more
discrete convection southwest of the MCS has produced multiple
instances of 1-2 inch hail in the last few hours. Though deep-layer
and low-level shear remains weak across the warm sector, 7+ C/km
surface-500 mb lapse rates and rich low-level moisture will continue
to support severe potential ahead of the aforementioned MCS and
transient supercells along its flank to the southwest. Large hail
remain the main threat with the transient supercells, with damaging
gusts likely continuing along the leading edge of the MCS.

...Squitieri/Grams.. 06/25/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!7_ZUZhj1s7fe6wxzYusSXgSWtI9-0UEenoIuSon8r4byZDMJ0YqquPFeitEJKtAUbEydpVnWk=
wlHXHly_FtT_awNLaY$  for graphic product...

ATTN...WFO...GSP...MRX...FFC...OHX...BMX...HUN...

LAT...LON   33868758 35248657 36018583 35748445 35408383 34938384
            34308438 33658516 33448597 33258656 33318707 33868758=20


=3D =3D =3D
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