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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 399...CORRECTED
NWS Storm Prediction Center Norman OK
725 PM CDT Wed Jul 28 2021
CORRECTED TO ADD PDS TEXT
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
parts of east-central Minnesota
much of Wisconsin
* Effective this Wednesday night and Thursday morning from 725 PM
until 200 AM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
* Primary threats include...
Widespread damaging winds expected with scattered significant
gusts to 90 mph likely
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
A tornado or two possible
SUMMARY...Strong/severe thunderstorms are forecast to increase in
coverage over the next 1 to 2 hours, evolving into a large,
well-organized cluster/possible derecho while moving rapidly
southeastward. Along with potential for a few tornadoes, widespread
damaging winds are expected -- including a few significant gusts
possibly reaching 90 MPH locally.
The severe thunderstorm watch area is approximately along and 70
statute miles either side of a line from 65 miles southwest of
Duluth MN to 40 miles northeast of Milwaukee WI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
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
OTHER WATCH INFORMATION...CONTINUE...WW 398...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 80 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector