Subj : MESO: Mesoscale Discussion 1503
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed Jul 12 2023 09:41:50

ACUS11 KWNS 120941
SWOMCD
SPC MCD 120941=20
IAZ000-MOZ000-NEZ000-SDZ000-121115-

Mesoscale Discussion 1503
NWS Storm Prediction Center Norman OK
0441 AM CDT Wed Jul 12 2023

Areas affected...far southeast SD...eastern NE into western/central
IA

Concerning...Severe Thunderstorm Watch 475...

Valid 120941Z - 121115Z

The severe weather threat for Severe Thunderstorm Watch 475
continues.

SUMMARY...Severe thunderstorm gusts will continue across WW 475.

DISCUSSION...A well organized bowing MCS will continue to track
southeast into eastern NE/western IA this next few hours. A swath of
intense gusts to 75 mph will be possible near the apex of a bowing
segment from near Pierce and Madison Counties toward the Omaha
vicinity through 12z. With time, gradual weakening of the bow is
expected with south/east extent as the low-level jet weakens after
12z. However, given the well developed nature of convection and
strong deep-layer northwesterly flow amid strong instability, severe
potential could persist at least briefly beyond the eastern/southern
bounds of WW 475. A downstream watch across parts of central IA
likely will be needed.

...Leitman.. 07/12/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!_EM6BcUzSPPquqsjSMySnT6FG22M9if2y8RwPKjHRn31RXJ8xlrAmbRg9G3lKDEKFK70sE5On=
9zQ7VxDzG5tsIRsPPc$  for graphic product...

ATTN...WFO...DVN...DMX...EAX...FSD...OAX...GID...LBF...

LAT...LON   42279921 42989752 43289656 43239636 43119580 42409378
            41939283 41589250 41149236 40709235 40569341 40419553
            40729730 41709880 42079917 42279921=20


=3D =3D =3D
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