

563 

WWUS20 KWNS 282242

SEL8

SPC WW 282242

MTZ000-290600-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 458

NWS Storm Prediction Center Norman OK

445 PM MDT Fri Jun 28 2019



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Central and Northeast Montana



* Effective this Friday afternoon from 445 PM until Midnight MDT.



* Primary threats include...

  A couple tornadoes possible

  Scattered large hail and isolated very large hail events to 2.5

    inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Severe thunderstorms are expected to gradually develop and

increase initially across central Montana through the

early/mid-evening hours. The environment will become increasingly

favorable for supercells capable of large hail/locally damaging

winds, with a tornado risk also increasing through mid-evening.

Storms will likely spread northeastward into northeast Montana by

late evening.



The tornado watch area is approximately along and 75 statute miles

north and south of a line from 65 miles west northwest of Lewistown

MT to 25 miles east southeast of Glasgow MT. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU8).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A Tornado Watch means conditions are favorable for

tornadoes and 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 457...



AVIATION...Tornadoes and a few severe thunderstorms with hail

surface and aloft to 2.5 inches. Extreme turbulence and surface wind

gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean

storm motion vector 25030.



...Guyer

