ZCZC SPCSWOMCD ALL
ACUS11 KWNS 250152 
SPC MCD 250152 
ILZ000-WIZ000-IAZ000-MOZ000-250315-

Mesoscale Discussion 1248
NWS Storm Prediction Center Norman OK
0852 PM CDT Sat Jun 24 2023

Areas affected...southern WI...eastern IA...western/central IL and
portions of northeastern MO

Concerning...Severe Thunderstorm Watch 372...

Valid 250152Z - 250315Z

The severe weather threat for Severe Thunderstorm Watch 372
continues.

SUMMARY...Strong to severe storms should continue this evening with
a risk for damaging winds and hail.

DISCUSSION...As of 0150 UTC, several clusters of strong to severe
storms were ongoing across WW372. A linear cluster across southern
WI and eastern IA has shown an increase in low-level velocities over
the past hour. Though buoyancy is weaker with eastward extent,
sufficient mucape ~1000 J/kg should remain supportive of strong
updrafts. These storms should continue to pose a risk for damaging
wind gusts this evening as they track southeastward across far
southern WI and eastern IA, into northwestern IL.

Farther south, several supercells have produced reports of severe
hail across portions of northeastern MO and western IL. Moderate
buoyancy and vertical shear will continue to support strong updrafts
capable of large hail this evening. Recent HRRR runs also suggest
some additional storm development into a cluster is possible with
time as the low-level jet intensifies. The risk for damaging gusts
may increase tonight if storms are able to grow upscale into an
organized cluster.

..Lyons.. 06/25/2023

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

ATTN...WFO...LOT...ILX...MKX...LSX...DVN...ARX...

LAT...LON   40619193 42189149 42589113 42849082 42939063 42618983
            41858920 39508939 39429102 39459165 39599208 40099210
            40619193 

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