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159 

WWUS20 KWNS 242303

SEL2

SPC WW 242303

MTZ000-250500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 302

NWS Storm Prediction Center Norman OK

505 PM MDT Wed Jun 24 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northwest to north-central Montana



* Effective this Wednesday afternoon and evening from 505 PM

  until 1100 PM MDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Severe thunderstorms should move into the western part of

the watch from the Rockies, with potential for upscale clustering

and cold-pool generation, as well as potentially intensifying from a

band of convection astride the international border between Cut Bank

and Havre.  Severe gusts will be the main concern, though isolated

large hail is possible.



The severe thunderstorm watch area is approximately along and 50

statute miles north and south of a line from 45 miles west southwest

of Cut Bank MT to 45 miles east southeast of Havre MT. 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 300...WW 301...



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

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

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

27035.



...Edwards

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