Subj : MESO: Mesoscale Discussion 1794
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Mon Jul 31 2023 02:51:42

ACUS11 KWNS 310251
SWOMCD
SPC MCD 310251=20
NEZ000-SDZ000-WYZ000-310515-

Mesoscale Discussion 1794
NWS Storm Prediction Center Norman OK
0951 PM CDT Sun Jul 30 2023

Areas affected...southwest South Dakota into western and northern
Nebraska

Concerning...Severe Thunderstorm Watch 573...574...

Valid 310251Z - 310515Z

The severe weather threat for Severe Thunderstorm Watch 573, 574
continues.

SUMMARY...Numerous storms producing strong wind gusts and hail
should persist over much of southwest South Dakota into west-central
Nebraska.

DISCUSSION...Numerous storms and outflows have generally congealed
from southwest SD into northwest NE, with mixed storm modes
including cells propagating along outflows and splitting cells. 00Z
soundings show generally weak winds below 500 mb, and this may be
contributing to relatively slow progression of the storm clusters.
These storms are expected to continue processing the unstable air
mass and gradually shift southeastward. At this time, most of the
storms are well contained within the existing watches. Local
extensions may be considered in the short term as storms approach
the eastern parts of the watches.

...Jewell.. 07/31/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!7oUcdi_yYdfToklJvTYh7s_s6YNxJ8KduC3XqSjQ2f5pUmpAv51s7aSyCpE_F32TW7LCVb_Du=
r8joelOUNDOyQS1xkI$  for graphic product...

ATTN...WFO...LBF...UNR...CYS...

LAT...LON   41440303 41630335 42100370 42610427 42960480 43420481
            43600447 43690335 43940199 43920138 43710075 43380002
            42789950 42179942 41439993 41080073 41040146 41090204
            41440303=20


=3D =3D =3D
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