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WWUS20 KWNS 170243

SEL8

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MIZ000-WIZ000-171000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 228

NWS Storm Prediction Center Norman OK

945 PM CDT Tue May 16 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Small part of Upper Michigan

  Wisconsin



* Effective this Tuesday night and Wednesday morning from 945 PM

  until 500 AM CDT.



* Primary threats include...

  Isolated very large hail events to 2 inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Multiple clusters of strong to severe thunderstorms will

continue to pose mostly a severe hail and locally damaging wind risk

across the region into the early overnight hours, while additional

storms currently across Iowa may move into the region overnight.



The severe thunderstorm watch area is approximately along and 40

statute miles north and south of a line from 15 miles west northwest

of La Crosse WI to 35 miles southeast of Iron Mountain 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 220...WW 221...WW

222...WW 224...WW 225...WW 226...WW 227...



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

2 inches. Extreme turbulence and surface wind gusts to 60 knots. A

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

25030.



...Guyer

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