Mesoscale Discussion 0738
NWS Storm Prediction Center Norman OK
0517 PM CDT Tue May 25 2021
Areas affected...Portions of central/northern Wisconsin and western
Upper Peninsula of Michigan
Concerning...Severe Thunderstorm Watch 203...
Valid 252217Z - 260015Z
The severe weather threat for Severe Thunderstorm Watch 203
SUMMARY...A linear segment has developed in west-central Wisconsin.
This activity will pose an increased damaging wind threat as it
moves into central Wisconsin. More isolated, discrete storms in
portions of the Northwoods will have a greater hail threat.
DISCUSSION...Storms have recently begun to cluster in parts of
west-central Wisconsin. Estimated 60 mph wind gusts have been
reported near Arcadia, WI in the last 15-20 minutes. As this
activity moves east into the Central Sands region, temperatures in
the low 80s F and dewpoints in the mid 60s F will support an
increased risk for damaging wind gusts given the linear storm mode.
Farther north, buoyancy is slightly more limited and storm coverage
has been more isolated. However, a more robust storm moving from
Taylor County into Lincoln County has shown a MESH values of 1-1.5
inches. These more discrete storms will pose a greater large hail
risk. Deep-layer shear will continue to support storm organization
as storms move east.
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