ACUS11 KWNS 181917
SWOMCD
SPC MCD 181916 
MIZ000-OHZ000-INZ000-182045-

Mesoscale Discussion 0774
NWS Storm Prediction Center Norman OK
0216 PM CDT Mon May 18 2026

Areas affected...Southern and Central Michigan

Concerning...Severe Thunderstorm Watch 221...

Valid 181916Z - 182045Z

The severe weather threat for Severe Thunderstorm Watch 221
continues.

SUMMARY...The severe thunderstorm threat for WW 221 continues.
Severe thunderstorms capable of damaging straight-line winds are
ongoing and expected to persist.

DISCUSSION...Severe thunderstorms capable of primarily damaging
straight-line winds are ongoing across WW 221. Several measured
gusts of 60-75 MPH have been observed in the wake of the apex of the
bowing line segment. A localized corridor along the leading edge and
apex of the bowing segment exists where the wind damage threat is
maximized, with gusts to 80 MPH possible. These storms are expected
to persist and maintain their intensity with eastward extend as they
cross central and southern Michigan.

..Halbert.. 05/18/2026

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

ATTN...WFO...CLE...DTX...IWX...GRR...

LAT...LON   41698533 42398515 42698526 43028556 43368565 43728465
            43698355 43408293 42788271 42298279 41838301 41728355
            41698533 

MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN