

029 

WWUS20 KWNS 222342

SEL8

SPC WW 222342

COZ000-KSZ000-230700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 428

NWS Storm Prediction Center Norman OK

540 PM MDT Sat Jun 22 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  southeastern Colorado

  western Kansas



* Effective this Saturday afternoon and Sunday morning from 540

  PM until 100 AM 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 now developing east and northeast of the

southern Colorado Rockies are expected to continue gradually

intensifying while spreading through the adjacent central High

Plains through this evening.  Additional isolated supercells are

probable, with at least some eventual consolidation of storms that

could evolve into an organizing cluster of storms.  This could pose

increasing potential for strong wind gusts, into addition to the

risk for severe hail.



The severe thunderstorm watch area is approximately along and 70

statute miles east and west of a line from 20 miles northwest of

Goodland KS to 15 miles south southwest of Springfield CO. 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 424...WW 425...WW

426...WW 427...



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

24030.



...Kerr

