

325 

WWUS20 KWNS 131744

SEL7

SPC WW 131744

COZ000-KSZ000-NEZ000-140100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 577

NWS Storm Prediction Center Norman OK

1145 AM MDT Tue Aug 13 2019



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Eastern Colorado

  Northwest Kansas

  Southwest Nebraska



* Effective this Tuesday morning and evening from 1145 AM until

  700 PM MDT.



* Primary threats include...

  A couple tornadoes possible

  Widespread large hail and scattered very large hail events to 4

    inches in diameter likely

  Scattered damaging winds and isolated significant gusts to 80

    mph likely



SUMMARY...Multiple discrete supercells will pose a risk for

potentially giant hail and a couple tornadoes through this

afternoon. This activity should eventually grow upscale into a

south-southeast moving cluster with an increasing risk for severe

wind gusts towards early evening.



The tornado watch area is approximately along and 70 statute miles

east and west of a line from 50 miles northeast of Sidney NE to 50

miles south southeast of Goodland KS. For a complete depiction of

the watch see the associated watch outline update (WOUS64 KWNS

WOU7).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A Tornado Watch means conditions are favorable for

tornadoes and 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 576...



AVIATION...Tornadoes and a few severe thunderstorms with hail

surface and aloft to 4 inches. Extreme turbulence and surface wind

gusts to 70 knots. A few cumulonimbi with maximum tops to 600. Mean

storm motion vector 34035.



...Grams

