Helicopter video from WCCO-TV and KARE-TV shows extensive damage at the trailer park, with several homes reduced to rubble.

Two people have been killed by strong tornadoes that swept across portions of southern Oklahoma.

A large storm capable of producing "significant" tornadoes and grapefruit-sized hail could be heading for north Texas, forecasters said.

December’s wild El Nino pushed 2015 in the United States to near-record levels for heat, moisture and extreme conditions, US government weather officials have said.

The storm system that spawned deadly tornadoes in Texas brought heavy snow, ice and blustery winds to several states, as well as heavy rain in already waterlogged areas where flooding was blamed for more than a dozen deaths.