ACUS11 KWNS 042051
SWOMCD
SPC MCD 042051=20
INZ000-ILZ000-042215-

Mesoscale Discussion 1497
NWS Storm Prediction Center Norman OK
0351 PM CDT Sat Jul 04 2026

Areas affected...northeast Illinois into western Indiana

Concerning...Severe Thunderstorm Watch 455...

Valid 042051Z - 042215Z

The severe weather threat for Severe Thunderstorm Watch 455
continues.

SUMMARY...Locally damaging wind gusts remain possible from
east-central Illinois into western Indiana. A new watch may not be
needed depending on trends.

DISCUSSION...Convection increased ahead of the MCV moving out of IA,
but has generally moved slowly, producing heavy rain. The air mass
across the region continues to heat and destabilize, and remains
sufficient for at least localized severe wind gusts. Recent radar
trends have shown some bowing storms, which may be capable of
damaging gusts. Unless storms become better organized, an additional
watch may not be needed downstream.

..Jewell.. 07/04/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_dGAelnuFpCqiValeRVx2PkKpESZFFsWx7OzmQkaZcawUa5S1MESuvVgps0bBUoHMi3uzMOwF= cYN1f8bGqpQohAzJEY$ for graphic product...

ATTN...WFO...IWX...IND...LOT...ILX...

LAT...LON 39958946 40708881 41388845 41738846 42038821 42078797
41698681 41108659 40168670 39828687 39528762 39428837
39718924 39958946=20

MOST PROBABLE PEAK WIND GUST...55-70 MPH


=3D =3D =3D
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* Origin: Capitol City Weather Station (1:2320/127)