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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 420

NWS Storm Prediction Center Norman OK

515 PM MDT Fri Jun 21 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  east central Colorado

  northwestern Kansas



* Effective this Friday afternoon and evening from 515 PM until

  1100 PM MDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Strong to severe thunderstorm development, including

isolated supercells, is expected to gradually spread eastward into

the region this evening and pose a risk for severe hail and locally

strong surface gusts.



The severe thunderstorm watch area is approximately along and 35

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

of Burlington CO to 40 miles southeast of Goodland KS. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU0).



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 417...WW 418...WW 419...



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

27020.



...Kerr

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