On Friday, 17 million people are under flood alerts across the Gulf Coast and in the mid-Atlantic, and 19 million are under heat alerts across the mid-Atlantic, southern Florida and Mississippi Valley.

On Sunday at 5:15 a.m. a flash flood warning was issued by the National Weather Service in effect until 9:15 a.m. for Monmouth and Ocean counties.

The warning was issued for Ashe County. "The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures," states the NWS Blacksburg VA. The warning is in effect until 9 p.m.

“If you’ve never seen water rise in front of you in minutes, it’s hard to conceive of how quickly that can happen—and how quickly your life and property can be at risk,” said Rachel Hogan Carr, executive director of the Nurture Nature Center, a nonprofit focused on flood-risk communication.

The warning was in place for San Bernardino County. "The heavy rain has ended in the Primm area. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. A Flood Watch remains in effect until 11 p.m. for portions of northwest Arizona and Nevada," says the NWS Las Vegas NV.

On Thursday at 11:02 p.m. the National Weather Service issued an updated flood warning in effect until Saturday at 2:42 p.m. The warning is for Jackson, Lafayette and Ray counties.

The National Weather Service released a flash flood warning at 4:01 p.m. on Wednesday in effect until 7 p.m. for Butler County.

At 11:58 a.m. on Friday, the NWS San Diego CA released an updated flash flood warning in effect until 2 p.m. for San Bernardino County.

The Met Office has issued a rare 'danger to life' warning for three parts of the UK as it told locals to prepare for the risk of possible flash flooding