Subj : MESO: Mesoscale Discussion 1690
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed Jul 16 2025 21:29:14

ACUS11 KWNS 162129
SWOMCD
SPC MCD 162128=20
MIZ000-INZ000-162230-

Mesoscale Discussion 1690
NWS Storm Prediction Center Norman OK
0428 PM CDT Wed Jul 16 2025

Areas affected...northern Indiana...far southern Michigan

Concerning...Severe potential...Watch possible=20

Valid 162128Z - 162230Z

Probability of Watch Issuance...60 percent

SUMMARY...A line of thunderstorms with a history of producing severe
winds will move downstream of WW518. A new watch may be needed to
cover this threat.

DISCUSSION...A fast moving line of thunderstorms continues eastward
moving out of eastern Illinois near southern Lake Michigan into
northern Indiana. This line has a history of producing gusts 50-65
mph. The environment downstream remains favorably unstable and warm,
though deep layer shear profiles are meager. A new watch downstream
of WW518 may be warranted to cover the risk downstream.

...Thornton.. 07/16/2025

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!5h1BkfE9B8lgr9YPI5RzjcqYYt0lbE3wb-iCDkfTZ0qbRVBICyeqbwGmOqGrTswrQHoYGshCU=
9l_6it9CyiImA5YD_0$  for graphic product...

ATTN...WFO...IWX...GRR...IND...LOT...

LAT...LON   41268734 42108712 42428671 42618622 42638581 42478546
            42248517 41738492 41398492 40848495 40458506 40348557
            40258605 40298656 40338706 40458744 41268734=20

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


=3D =3D =3D
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