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912 

WWUS20 KWNS 302334

SEL9

SPC WW 302334

MNZ000-WIZ000-010500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 669

NWS Storm Prediction Center Norman OK

635 PM CDT Mon Sep 30 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern and southern Minnesota

  Northwest Wisconsin



* Effective this Monday night from 635 PM until Midnight CDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Storms should continue to intensify initially across

eastern/southern Minnesota early this evening. While there is some

uncertainty regarding the overall coverage/likelihood of severe

storms this evening, the environment supports the possibility of

isolated large hail, locally damaging winds and perhaps a tornado.



The severe thunderstorm watch area is approximately along and 50

statute miles east and west of a line from 95 miles north northeast

of Minneapolis MN to 25 miles east southeast of Fairmont MN. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU9).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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

tornadoes.



&&



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

24035.



...Guyer

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