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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 356

NWS Storm Prediction Center Norman OK

220 PM MDT Fri Jun 14 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  central Montana



* Effective this Friday afternoon and evening from 220 PM until

  800 PM MDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible



SUMMARY...An isolated supercell thunderstorm appears likely to

maintain strength several more hours, and may impact the Great Falls

area between 3 PM and 5 PM MDT, with a continuing risk for severe

hail and strong surface gusts.



The severe thunderstorm watch area is approximately along and 55

statute miles east and west of a line from 35 miles north of Great

Falls MT to 20 miles south southwest of Lewistown MT. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU6).



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 355...



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

2 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 450. Mean storm motion vector

31030.



...Kerr

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