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WWUS20 KWNS 172218

SEL2

SPC WW 172218

MNZ000-NDZ000-180500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 282

NWS Storm Prediction Center Norman OK

520 PM CDT Wed Jun 17 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northwest Minnesota

  Eastern North Dakota



* Effective this Wednesday afternoon from 520 PM until Midnight

  CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Thunderstorms will develop this evening along and ahead of

a cold front across eastern North Dakota, and spread northeastward

through early tonight.  A few supercells will be possible initially,

with the threat for large hail/damaging winds, and perhaps an

isolated tornado across northeast North Dakota and extreme northwest

Minnesota.  Storms are expected to grow upscale into clusters and

line segments later this evening, with a continuing threat for

damaging winds and occasional large hail.



The severe thunderstorm watch area is approximately along and 60

statute miles east and west of a line from 25 miles northwest of

Hallock MN to 70 miles south of Jamestown ND. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU2).



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.



&&



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 550. Mean storm motion vector

23030.



...Thompson

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