Inclement weather plagued the country, and in San Francisco, authorities issued the first-ever tornado warning.

Inclement weather plagued areas of the US in the first half of the weekend, with dangerous conditions including heavy snow in ...

Inclement weather has plagued areas of the U.S. in the first half of the weekend, with dangerous conditions including heavy snow, a major ice storm and unusual tornado activity OMAHA, Neb.

In San Francisco, authorities issued the first-ever tornado warning. Elsewhere, inclement weather plagued areas of the U.S., with dangerous conditions including heavy snow in upstate New York ...