

124 

WWUS20 KWNS 202105

SEL7

SPC WW 202105

MTZ000-210500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 197

NWS Storm Prediction Center Norman OK

305 PM MDT Wed May 20 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central and Eastern Montana



* Effective this Wednesday afternoon and evening from 305 PM

  until 1100 PM MDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Thunderstorms will continue to intensify initially across

central/southern Montana this afternoon, and subsequent

spread/develop north-northeastward across east-central Montana by

evening. Severe hail/wind are the primary risks.



The severe thunderstorm watch area is approximately along and 125

statute miles east and west of a line from 55 miles north northwest

of Glasgow MT to 70 miles west southwest of Broadus MT. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU7).



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 195...WW 196...



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

21025.



...Guyer

