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WWUS20 KWNS 110251

SEL4

SPC WW 110251

MTZ000-NDZ000-110800-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 254

NWS Storm Prediction Center Norman OK

950 PM CDT Thu Jun 10 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  northeast Montana

  western and central North Dakota



* Effective this Thursday night and Friday morning from 950 PM

  until 300 AM CDT.



* Primary threats include...

  Widespread damaging winds and isolated significant gusts to 80

    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 are expected to continue into the early

morning hours with some supercells possible, but with primary storm

mode transitioning to a squall line. Damaging wind and large hail

are the primary threats, but a couple of tornadoes are also

possible.



The severe thunderstorm watch area is approximately along and 125

statute miles east and west of a line from 70 miles northwest of

Minot ND to 75 miles southwest of Bismarck ND. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU4).



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...This severe thunderstorm watch replaces

tornado watch number 251...severe thunderstorm watch number 252.

Watch number 251 252 will not be in effect after 950 PM CDT.

CONTINUE...WW 253...



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

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

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

26035.



...Dial

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