ACUS11 KWNS 052224
SWOMCD
SPC MCD 052224=20
MIZ000-WIZ000-060030-

Mesoscale Discussion 0991
NWS Storm Prediction Center Norman OK
0524 PM CDT Fri Jun 05 2026

Areas affected...Parts of central/northern WI and southern Upper MI

Concerning...Severe Thunderstorm Watch 274...

Valid 052224Z - 060030Z

The severe weather threat for Severe Thunderstorm Watch 274
continues.

SUMMARY...A threat for locally damaging wind and isolated hail may
spread east-southeastward into the early evening.

DISCUSSION...A cluster of occasionally strong storms is ongoing at
2215 UTC across parts of northwest WI. MLCAPE of 1000-1500 J/kg and
effective shear of 30-35 kt are marginally supportive of organized
convection, though relatively weak midlevel lapse rates and
low-level flow have hindered potential for a more substantial severe
threat thus far. With time, expanding outflow within a steep
low-level lapse rate environment could support an increasing threat
for damaging wind as convection moves east-southeastward, and
isolated hail cannot be ruled out with the strongest embedded
updrafts.=20

An isolated severe threat will spread to the north and east of WW
274 into early evening. The need for a new watch is uncertain given
current trends, but these storms will be monitored for an uptick in
storm organization through 00 UTC.

..Dean/Gleason.. 06/05/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_KXxVkS276jTJLQ7drjGDuzY6exlnZ4-WqXs24EmC-B5HlfwvGuKbDLaZicbEqWyJHJZETVZR= WBu6HDONzdBfYz62VU$ for graphic product...

ATTN...WFO...MQT...GRB...MKX...DLH...ARX...MPX...

LAT...LON 46128990 46298865 46198805 46088782 45938764 45808757
45438765 45238772 45148777 44638820 43888891 43718978
43929106 44179168 44419196 44599232 44819138 45409040
46128990=20

MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


=3D =3D =3D
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