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WWUS20 KWNS 291743 CCA

SEL3

SPC WW 291743 CCA

MIZ000-LHZ000-LMZ000-292300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 473...CORRECTED

NWS Storm Prediction Center Norman OK

150 PM EDT Sun Aug 29 2021



CORRECTED FOR TIME ZONE



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern and central Michigan

  Lake Huron

  Lake Michigan



* Effective this Sunday afternoon and evening from 150 PM until

  700 PM EDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 75

    mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Multiple multicell clusters should spread east across most

of Lower Michigan this afternoon.



The severe thunderstorm watch area is approximately along and 65

statute miles east and west of a line from 80 miles north northeast

of Alpena MI to 45 miles east of Muskegon MI. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU3).



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 472...



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

1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A

few cumulonimbi with maximum tops to 500. Mean storm motion vector

25030.



...Grams

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