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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 307

NWS Storm Prediction Center Norman OK

755 PM EDT Fri Jun 26 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Indiana

  Southern Lower Michigan

  Extreme northwestern Ohio

  Lake Erie

  Lake Michigan



* Effective this Friday night and Saturday morning from 755 PM

  until 500 AM EDT.



* Primary threats include...

  Scattered damaging winds likely with isolated significant gusts

    to 75 mph possible

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Severe-thunderstorm potential will increase and shift

east-southeastward across the watch area through the remainder of

the evening, as activity now over northern Illinois and southern

Lake Michigan becomes better organized.  Wind is the main threat,

though isolated large hail is expected, and a tornado or two cannot

be ruled out.



The severe thunderstorm watch area is approximately along and 60

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

Harbor MI to 10 miles east southeast of Detroit MI. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU7).



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 305...WW 306...



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 550. Mean storm motion vector

28035.



...Edwards

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