ZCZC SPCSWOMCD ALL
ACUS11 KWNS 252146 
SPC MCD 252146 
ILZ000-MOZ000-252245-

Mesoscale Discussion 1096
NWS Storm Prediction Center Norman OK
0446 PM CDT Fri Jun 25 2021

Areas affected...central Missouri to central Illinois

Concerning...Severe potential...Severe Thunderstorm Watch likely 

Valid 252146Z - 252245Z

Probability of Watch Issuance...80 percent

SUMMARY...Severe thunderstorm watch appears warranted to account for
expected upscale convective growth over the next several hours.

DISCUSSION...Despite earlier MCS that spread across the Midwest,
rapid air mass destabilization is occurring just southwest of the
STL area. Further destabilization is expected downstream across
central IL over the next few hours which should contribute to robust
convection. Latest satellite imagery exhibits a line of deepening
cumulus, with some showers, from near SPI to north of CMI.
Thunderstorms will likely evolve along this corridor soon.
Additionally, larger cluster of strong/severe storms should
propagate across central into eastern MO with a threat for
hail/wind. WW will likely be issued soon.

..Darrow/Grams.. 06/25/2021

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...LOT...ILX...LSX...SGF...EAX...

LAT...LON   39549270 40748829 39388781 38439003 38169268 39549270 

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