The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Click for Watch Status Reports
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 208
NWS Storm Prediction Center Norman OK
215 PM CDT Sat May 23 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western South Dakota
* Effective this Saturday afternoon and evening from 215 PM until
900 PM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2.5 inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Clusters of intense thunderstorms are expected to form
this afternoon and spread eastward across the watch area. Large
hail will be the primary threat, although locally damaging wind
potential will increase through the late afternoon.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 15 miles northeast of
Buffalo SD to 40 miles south southeast of Sidney NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
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 207...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector