A 'dynamic' weather system has sparked a 'historic' tornado outbreak across the US with 70 twisters predicted to make landfall by the end of the weekend and has already left two people dead

The violent storm has left 'multiple' people dead after tornadoes touched down in Missouri and an extreme fire risk warning was issued to South-Western states.

A rare Level 5 out of 5 severe weather threat looms over the South as a dangerous line of storms threatens strong, long-track tornadoes and damaging wind gusts through Saturday.

The threat of tornadoes is moving east into the Mississippi Valley and Deep South a day after a massive storm system moving across the country unleashed winds that damaged buildings, whipped up dust s