An earthquake off the coast of Russia caused a swath of tsunami warnings, advisories and watches across the west coast of the ...

There were two confirmed tornadoes amid a flurry of warnings as storms moved through eastern South Dakota during the ...

The severe thunderstorms that passed through eastern South Dakota on July 28 brought powerful winds to the region.

Todd Heitkamp, a National Weather Service meteorologist, said the line of storms appeared to coalesce into a derecho around Sioux Falls.