OMAHA, Neb.: A tornado near a mall in central California swept up cars, uprooted trees and sent several people to the hospital. In San Francisco, authorities issued the first-ever tornado warning.

a major ice storm in Midwest states, severe weather warnings around Lake Tahoe and unsual tornado activity in Central California. The ice storm beginning Friday evening created treacherous driving ...

a major ice storm in Midwest states, severe weather warnings around Lake Tahoe and unsual tornado activity in Central California. The ice storm beginning Friday evening created treacherous driving ...