

476 

WWUS20 KWNS 070345

SEL6

SPC WW 070345

SDZ000-071000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 336

NWS Storm Prediction Center Norman OK

1045 PM CDT Mon Jul 6 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  South central and southeast South Dakota



* Effective this Monday night and Tuesday morning from 1045 PM

  until 500 AM CDT.



* 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



SUMMARY...A line of storms has shown signs of intensification as it

approaches the edge of earlier Severe Thunderstorm Watch 334.  The

downstream environment will support a continuation of these storms,

as well as the development of additional storms into southeast South

Dakota overnight.  Damaging winds will be the main threat with the

line of storms, while large hail will remain possible with the

persistent supercell on the south end of the line, and with the

developing storms farther east into southeast South Dakota.



The severe thunderstorm watch area is approximately along and 45

statute miles north and south of a line from 95 miles west of

Chamberlain SD to 40 miles east southeast of Mitchell SD. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU6).



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...This severe thunderstorm watch replaces

severe thunderstorm watch number 334. Watch number 334 will not

be in effect after 1045 PM CDT.



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 550. Mean storm motion vector

29035.



...Thompson

