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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 135
NWS Storm Prediction Center Norman OK
900 PM CDT Sun Apr 9 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
* Effective this Sunday night and Monday morning from 900 PM
until 100 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...Strong to occasionally severe thunderstorms should
continue to develop and move northeastward across the region through
late evening and early in the overnight. The strongest storms will
be capable of severe hail and locally damaging winds.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 30 miles west southwest
of Mason City IA to 50 miles east northeast of Eau Claire WI. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU5).
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
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