

385 

WWUS20 KWNS 240308

SEL9

SPC WW 240308

NDZ000-SDZ000-240800-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 459

NWS Storm Prediction Center Norman OK

1010 PM CDT Mon Aug 23 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southeast North Dakota

  Northcentral and northeast South Dakota



* Effective this Monday night and Tuesday morning from 1010 PM

  until 300 AM CDT.



* Primary threats include...

  Isolated very large hail events to 2 inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Thunderstorms will move east through the early morning

hours and pose a threat for large hail and damaging wind gusts.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 20 miles west northwest

of Mobridge SD to 40 miles north northeast of Watertown SD. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU9).



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 458...



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 500. Mean storm motion vector

25030.



...Bunting

