WW 547 SEVERE TSTM SD 260015Z – 260600Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 547
NWS Storm Prediction Center Norman OK
715 PM CDT Tue Jul 25 2023
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and eastern South Dakota
* Effective this Tuesday night and Wednesday morning from 715 PM
until 100 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
A tornado or two possible
SUMMARY...Isolated supercell development is expected this evening
across central South Dakota, and storms will spread
east/southeastward through early tonight. Isolated very large hail
up to 2.5 inches in diameter and outflow winds of 60-75 mph will be
possible, while an isolated tornado or two may also occur.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 35 miles west northwest
of Watertown SD to 50 miles south of Mitchell SD. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 600. Mean storm motion vector
30020.
...Thompson
