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WWUS20 KWNS 101906

SEL2

SPC WW 101906

MTZ000-NDZ000-SDZ000-WYZ000-110300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 352

NWS Storm Prediction Center Norman OK

105 PM MDT Fri Jul 10 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  northeast Montana

  western and central North Dakota

  western and central South Dakota

  northeast Wyoming



* Effective this Friday afternoon and evening from 105 PM until

  900 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 2.5

    inches in diameter likely

  A tornado or two possible



SUMMARY...Scattered severe thunderstorms including isolated

supercells are expected late this afternoon into tonight, ahead of

an eastward and southeastward advancing cold front.  By early this

evening, storms may begin to consolidate and evolve into a

organizing cluster across parts of southeastern North Dakota and

northwestern South Dakota, posing increasing potential for severe

wind gusts while advancing southeastward.



The severe thunderstorm watch area is approximately along and 80

statute miles east and west of a line from 50 miles north of

Williston ND to 110 miles southeast of Buffalo SD. 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

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

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

28030.



...Kerr

