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WWUS20 KWNS 302318

SEL7

SPC WW 302318

IDZ000-WAZ000-310600-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 237

NWS Storm Prediction Center Norman OK

415 PM PDT Sat May 30 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  The Idaho Panhandle

  Central and eastern Washington



* Effective this Saturday afternoon and evening from 415 PM until

  1100 PM PDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 80

    mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A tornado or two possible



SUMMARY...Clusters of severe storms, including supercells and bowing

segments, will move northward from Oregon into Washington and the

Idaho Panhandle the remainder of this afternoon through late

evening.  The storm environment is favorable for both damaging

winds, some of which could be significant, and large hail.  An

isolated tornado cannot be ruled out.



The severe thunderstorm watch area is approximately along and 100

statute miles east and west of a line from 65 miles south southeast

of Ephrata WA to 55 miles northeast of Omak WA. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU7).



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 236...



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

2 inches. Extreme turbulence and surface wind gusts to 70 knots. A

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

21045.



...Thompson

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