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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 199
NWS Storm Prediction Center Norman OK
810 PM CDT Sun May 23 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South Central South Dakota
* Effective this Sunday night and Monday morning from 810 PM
until 100 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...A line of intense thunderstorms will track northeastward
across the watch area through the evening hours, posing a risk of
locally damaging wind gusts and hail.
The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 60 miles north northeast
of Valentine NE to 75 miles south of Goodland KS. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
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
OTHER WATCH INFORMATION...CONTINUE...WW 196...WW 197...WW 198...
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