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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 264
NWS Storm Prediction Center Norman OK
840 PM MDT Sat Jul 7 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and central North Dakota
Northwest South Dakota
* Effective this Saturday night and Sunday morning from 840 PM
until 500 AM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
SUMMARY...A cluster of storms should move east into northwest South
Dakota with additional storms forming to the northeast across
southwest into central North Dakota. Large hail and severe wind
gusts are possible.
The severe thunderstorm watch area is approximately along and 65
statute miles either side of a line from 30 miles south southwest of
Buffalo SD to 60 miles northeast of Bismarck ND. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).
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
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector