|Mesoscale Discussion 960|
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Mesoscale Discussion 0960
NWS Storm Prediction Center Norman OK
1002 AM CDT Sun May 29 2022
Areas affected...Portions of far southeastern MN into western WI and
far northeastern IA
Concerning...Severe Thunderstorm Watch 286...
Valid 291502Z - 291630Z
The severe weather threat for Severe Thunderstorm Watch 286
SUMMARY...An isolated severe hail threat appears to be diminishing.
Downstream watch issuance is not expected.
DISCUSSION...Elevated thunderstorms driven largely by low-level warm
advection have struggled to intensity over the past couple of hours
across southern MN. This activity is approaching the eastern bounds
of meaningful MUCAPE based on latest mesoanalysis. Deep-layer shear
is also marginal, around 25-30 kt. Current expectations are for the
already marginal hail threat associated with these thunderstorms to
continue diminishing as they move eastward across western WI over
the next couple of hours. The remaining valid counties in Severe
Thunderstorm Watch 286 should be able to be cleared shortly, and
downstream watch issuance is not expected.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 44609187 45239209 45499155 45429077 44959037 44029034
43409083 43049176 43329186 43869161 44609187
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