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969 

WWUS20 KWNS 062247

SEL4

SPC WW 062247

MTZ000-NDZ000-NEZ000-SDZ000-070600-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 264

NWS Storm Prediction Center Norman OK

545 PM CDT Sat Jun 6 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  eastern Montana

  southwestern North Dakota

  parts of western and north-central Nebraska

  western and central South Dakota



* Effective this Saturday afternoon and Sunday morning from 545

  PM until 100 AM CDT.



* Primary threats include...

  Widespread damaging winds expected with isolated significant

    gusts to 80 mph likely

  Scattered large hail likely with isolated very large hail events

    to 2 inches in diameter possible

  A tornado or two possible



SUMMARY...A fast-moving band of thunderstorms moving quickly

northeastward across eastern portions of Colorado and Wyoming will

continue, spreading across the WW area over the next several hours.

Along with potential for hail, widespread damaging winds --

including locally destructive wind gusts -- are expected.



The severe thunderstorm watch area is approximately along and 115

statute miles north and south of a line from 40 miles northwest of

Miles City MT to 55 miles northeast of Valentine NE. 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...CONTINUE...WW 261...WW 262...WW 263...



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 550. Mean storm motion vector

24050.



...Goss

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