

220 

WWUS20 KWNS 102101

SEL8

SPC WW 102101

MTZ000-SDZ000-WYZ000-110400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 568

NWS Storm Prediction Center Norman OK

305 PM MDT Sat Aug 10 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southern Montana

  Western South Dakota

  Northern Wyoming



* Effective this Saturday afternoon and evening from 305 PM until

  1000 PM MDT.



* Primary threats include...

  Isolated significant damaging wind gusts to 75 mph possible

  Isolated very large hail events to 2 inches in diameter possible



SUMMARY...Scattered thunderstorms will pose a risk for isolated

severe hail and wind into late evening.



The severe thunderstorm watch area is approximately along and 75

statute miles north and south of a line from 65 miles south

southwest of Harlowton MT to 45 miles east of Rapid City SD. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU8).



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 567...



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

2 inches. Extreme turbulence and surface wind gusts to 65 knots. A

few cumulonimbi with maximum tops to 550. Mean storm motion vector

25030.



...Grams

