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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
* 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).
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
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