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WWUS20 KWNS 212042

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 611

NWS Storm Prediction Center Norman OK

245 PM MDT Wed Aug 21 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Colorado

  Southeast Wyoming



* Effective this Wednesday afternoon and evening from 245 PM

  until 900 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



SUMMARY...Isolated severe storms, in the form of sustained

multicells and a few transient supercells, are expected to develop

along the foothills/I-25 corridor of eastern Colorado into southeast

Wyoming. Isolated large hail will be the primary risk as storms

drift east-southeastward through late afternoon/evening, although

localized severe-caliber winds could also occur, particularly across

east-central Colorado.



The severe thunderstorm watch area is approximately along and 45

statute miles east and west of a line from 75 miles north northeast

of Laramie WY to 30 miles southeast of Pueblo CO. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU1).



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 609...WW 610...



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

32020.



...Guyer

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