National Weather Service United States Department of Commerce

Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Overview

Three days in a row, our area was affected by severe thunderstorms. On June 11, thunderstorms moved into northwestern SD and northeastern WY from MT. They brought large hail and damaging winds; in particular, Philip received significant wind damage, with roofs being blown off buildings. 

On June 12, another round of thunderstorms brought very large hail and strong winds that damaged areas from northeastern WY to central SD. Belle Fourche received quite a bit of damage from Sunday's storms, which involved wind-driven hail, up to grapefruit size (4 inches). Slightly larger (4.5 inches, softball sized) hail was reported near Wall later.

On June 13, storms started across northeastern WY along a cold front, and traveled through western SD during the evening. The largest hail (the size of a grapefruit) was reported in the Hot Springs/Buffalo Gap area. Later, tennis ball sized hail driven by 90 mph winds caused damage in Kadoka. 

Image
June 11 storm over Bear Butte (Markus Erk)

 

nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo