ACUS11 KWNS 031914
SWOMCD
SPC MCD 031913=20
MIZ000-INZ000-032045-

Mesoscale Discussion 1470
NWS Storm Prediction Center Norman OK
0213 PM CDT Fri Jul 03 2026

Areas affected...southwest Lower MI

Concerning...Severe Thunderstorm Watch 447...

Valid 031913Z - 032045Z

The severe weather threat for Severe Thunderstorm Watch 447
continues.

SUMMARY...A severe band of storms over Lake Michigan will move
eastward into southwest Lower Michigan over the next hour. The
strongest wind gusts may approach 70-80 mph, and a swath of damaging
gusts is possible.

DISCUSSION...A small but strong bowing cluster of storms over Lake
MI will continue to track east around 40 kt into southwest Lower MI
over next hour or so. This activity produced several measured gusts
in the 65-73 mph range near Chicago before moving over southern Lake
MI. Since then, this area of convection has some some signs of
increasing organization. The MKX VWP shows a band of 45-60 kt 3-6 km
westerly flow in the wake of this convection, indicating some degree
of organized rear-inflow. This should aid in continued organization
and severe wind potential across southwest Lower MI in the short
term.

..Leitman.. 07/03/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!48regCMg03gCaOTB-LjSBNQc5Vc_w5fg7J8cSlmsybDYMWJL6WcEdfHhfL6tuJ7kNzQ5dWMWu= V413xi_OaYn4U43B40$ for graphic product...

ATTN...WFO...IWX...GRR...

LAT...LON 42848691 42868599 42708540 42308522 41728540 41748709
41878754 42238752 42598737 42848691=20

MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


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