Warnings of flash flooding have been issued across seven US states as a massive downpour of torrential rain triggered extremely dangerous conditions in Houston, Texas.
Over 30 million Americans were told to brace for dangerous thunderstorms including record-breaking flooding, hail and possible tornadoes.
Meteorologists have warned that the terrible weather could expand to other areas.
11 deaths have been confirmed as a result of the storm. At least 12 people are still missing, and countless more have been evacuated .
In Houston, more than 80,000 people were without power and the flood waters closed roads including Interstate 10 and Interstate 45.
A state of disaster was stated in Houston on Monday.