Subj : MESO: Mesoscale Discussion 1474
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Jun 27 2025 20:04:53

ACUS11 KWNS 272003
SWOMCD
SPC MCD 272003=20
MIZ000-OHZ000-INZ000-272130-

Mesoscale Discussion 1474
NWS Storm Prediction Center Norman OK
0303 PM CDT Fri Jun 27 2025

Areas affected...Southern/eastern Lower MI into northeast IN and
northwest OH

Concerning...Severe Thunderstorm Watch 466...

Valid 272003Z - 272130Z

The severe weather threat for Severe Thunderstorm Watch 466
continues.

SUMMARY...Damaging winds remain possible through late afternoon.

DISCUSSION...A line of storms has developed this afternoon from
southern lower MI into northern IN. Weak midlevel lapse rates and
modest deep-layer shear have limited storm organization, with the
strongest measured gusts thus far in the 40-45 kt range. However,
moderate southwesterly flow above the surface (as noted in regional
VWPs) has resulted in relatively fast moving outflows and storm
motions, and may continue to support a threat for damaging strong to
locally severe gusts through the remainder of the afternoon.=20

The ongoing small cluster east of Lansing may pose the greatest
short-term threat, given its favorable north-south orientation and
somewhat stronger deep-layer flow/shear with northern extent. Some
intensification and/or redevelopment remains possible farther south
within a moderately unstable environment into far southern Lower MI,
northeast IN, and northwest OH.

...Dean.. 06/27/2025

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!7hjfC5BxCms9NnRsgt_uNrRd9t64PYgv5nnXGbFbvoAZYAQCoiVwvb2cEUc-NwNjkX0spqyY5=
pNIDDKoY73TIB1ooqA$  for graphic product...

ATTN...WFO...CLE...ILN...DTX...APX...IWX...GRR...

LAT...LON   40848551 41128565 41448577 42008601 42788449 43188429
            43648435 44518339 44348221 43838216 43358236 42528276
            41868340 40828459 40558495 40498526 40638549 40848551=20

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


=3D =3D =3D
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