WW 401 SEVERE TSTM SD WY 271920Z – 280200Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 401
NWS Storm Prediction Center Norman OK
120 PM MDT Tue Jun 27 2023
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western South Dakota
Northeast Wyoming
* Effective this Tuesday afternoon and evening from 120 PM until
800 PM MDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail and isolated very large hail events to 3
inches in diameter possible
SUMMARY...A few supercells should develop and spread east across the
Black Hills vicinity through early evening. Primary threat will be
large hail.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 80 miles west northwest
of Rapid City SD to 50 miles east southeast of Philip SD. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU1).
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 400...
AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26030.
...Grams
