SPC Severe Thunderstorm Watch 669

SPC Severe Thunderstorm Watch 669

WW 669 SEVERE TSTM MN WI LS 052055Z – 060400Z

Severe Thunderstorm Watch Number 669
NWS Storm Prediction Center Norman OK
355 PM CDT Tue Sep 5 2023

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Central and Eastern Minnesota
Western Wisconsin
Lake Superior

* Effective this Tuesday afternoon and evening from 355 PM until
1100 PM CDT.

* Primary threats include…
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible

SUMMARY…Strong to severe thunderstorms are expected to develop
through late afternoon and early evening, initially across the
eastern half of Minnesota, with large hail and damaging winds as the
primary hazards. Storms are expected to develop into western
Wisconsin by early/mid-evening.

The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 10 miles north of Ely MN
to 40 miles southwest of Rochester MN. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS


REMEMBER…A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce


AVIATION…A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector


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