

371 

WWUS20 KWNS 210458

SEL8

SPC WW 210458

INZ000-MIZ000-OHZ000-LEZ000-LMZ000-211000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 298

NWS Storm Prediction Center Norman OK

100 AM EDT Mon Jun 21 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Indiana

  Southern Lower Michigan

  Northwest Ohio

  Lake Erie

  Lake Michigan



* Effective this Monday morning from 100 AM until 600 AM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Isolated large hail events to 1 inch in diameter possible

  A tornado or two possible



SUMMARY...A secondary round of severe storms are expected to

steadily develop west-to-east across the region overnight,

particularly across far northern Indiana and southern Lower Michigan

into northwest Ohio. Damaging winds are the primary concern,

although a tornado or two could occur with any line-embedded

circulations.



The severe thunderstorm watch area is approximately along and 65

statute miles north and south of a line from 30 miles west of South

Bend IN to 20 miles southeast of Detroit MI. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU8).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 295...WW 296...WW 297...



AVIATION...A few severe thunderstorms with hail surface and aloft to

1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few

cumulonimbi with maximum tops to 550. Mean storm motion vector

27035.



...Guyer

