Mesoscale Discussion 1598
NWS Storm Prediction Center Norman OK
0814 PM CDT Tue Aug 24 2021
Areas affected...Northern IL...Northern IN...Southwest Lower MI
Concerning...Severe potential...Watch unlikely=20
Valid 250114Z - 250315Z
Probability of Watch Issuance...20 percent
SUMMARY...A few strong/severe wind gusts are possible the next few
hours as convection propagates southeast. Severe thunderstorm watch
is not currently warranted.
DISCUSSION...Multi-faceted complex of storms that originated over
the upper MS Valley earlier today has progressed southeast and
currently extends along a corridor from southwest lower MI-northwest IN-northern IL. Severe wind gusts were more common with this
activity across portions of IA/northern IL late this afternoon, but
have recently waned in intensity with many storms now producing
gusts on the order of 35kt. This elongated corridor of convection is propagating southeast at roughly 20-25kt and should continue for the
next few hours as sufficient cold pool trails the leading storms.
Given the generally sub-severe wind reports, at this time a new
severe thunderstorm watch is not warranted.
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