ACUS11 KWNS 150612
SWOMCD
SPC MCD 150612
OHZ000-MIZ000-150745-

Mesoscale Discussion 0443
NWS Storm Prediction Center Norman OK
0112 AM CDT Wed Apr 15 2026

Areas affected...Far southeast MI and northern OH

Concerning...Tornado and Severe Thunderstorm Watches 113...118...

Valid 150612Z - 150745Z

The severe weather threat for Tornado and Severe Thunderstorm
Watches 113, 118 continues.

SUMMARY...Locally damaging wind and a brief tornado remain possible,
though some weakening is expected with time.

DISCUSSION...A long-lived QLCS is moving across southeast MI and far
northern IN/northwest OH early this morning. Parts of the QLCS are
oriented parallel to the deep-layer flow, which is less favorable
for severe potential due to undercutting outflow. However, the more
north-south oriented segment approaching Detroit shows more
potential for damaging wind and embedded mesovortices in the short
term, as indicated by a recent 55 kt gust at KYIP.

With decreasing MLCAPE and increasing MLCINH with eastward extent,
longevity of the severe threat with this ongoing QLCS may be
relatively limited. Strong low-level southwesterly flow (as noted on
regional VWPs) may allow for sufficient moistening/destabilization
across parts of northwest and north-central OH, where WW 318 was
recently issued. Some threat for locally damaging wind and perhaps a
brief tornado remains possible in this area through around 08-09
UTC, before a more definitive weakening trend is expected.

..Dean.. 04/15/2026

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

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

LAT...LON   41228229 41078395 41138450 41328462 41678471 41758396
            42488332 42648263 42588202 42358166 42048163 41728186
            41228229

MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH