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070 

WWUS20 KWNS 082123

SEL3

SPC WW 082123

NDZ000-090400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 353

NWS Storm Prediction Center Norman OK

325 PM MDT Thu Jul 8 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Western North Dakota



* Effective this Thursday afternoon and evening from 325 PM until

  1000 PM MDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 75

    mph likely

  Scattered large hail and isolated very large hail events to 3

    inches in diameter likely

  A tornado or two possible



SUMMARY...Severe storms developing in Montana will spread into

western North Dakota through the remainder of this afternoon and

into late evening.  A mix of clusters and supercells will pose a

threat for very large hail (near the size of baseballs), significant

outflow gusts (near 75 mph), and the possibility of a tornado or two

with the strongest supercells this evening.



The severe thunderstorm watch area is approximately along and 75

statute miles east and west of a line from 75 miles northwest of

Minot ND to 15 miles west of Lemmon SD. For a complete depiction of

the watch see the associated watch outline update (WOUS64 KWNS

WOU3).



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 350...WW 351...WW 352...



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

3 inches. Extreme turbulence and surface wind gusts to 65 knots. A

few cumulonimbi with maximum tops to 550. Mean storm motion vector

33025.



...Thompson

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