

922 

WWUS20 KWNS 091907

SEL4

SPC WW 091907

SDZ000-100200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 564

NWS Storm Prediction Center Norman OK

210 PM CDT Fri Aug 9 2019



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  South Dakota



* Effective this Friday afternoon and evening from 210 PM until

  900 PM CDT.



* Primary threats include...

  A few tornadoes likely with a couple intense tornadoes possible

  Scattered damaging winds and isolated significant gusts to 80

    mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible



SUMMARY...Supercells developing across west-central South Dakota

should spread east-southeast across much of the central portion of

the state before developing into a cluster towards eastern South

Dakota.



The tornado watch area is approximately along and 75 statute miles

north and south of a line from 65 miles west of Pierre SD to 10

miles north northeast of Mitchell SD. For a complete depiction of

the watch see the associated watch outline update (WOUS64 KWNS

WOU4).



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.



&&



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

surface and aloft to 2 inches. Extreme turbulence and surface wind

gusts to 70 knots. A few cumulonimbi with maximum tops to 550. Mean

storm motion vector 29030.



...Grams

