Forecasters warn that floods could last for days as heavy rains fall in many U.S. states.

The rivers are increasingly flooding in the southern and midwest U.S., further threatening communities that have been damaged by heavy rain, tornadoes and violent winds caused at least 18 people to rain, tornados and harsh winds.

From Texas to Ohio, utilities shut down electricity and gas on Sunday, prompting some cities to close roads and deploy sandbags to protect homes and businesses.

Forecasters warn that floods could last for several days as floods hover in many U.S. states, including Kentucky, Tennessee and Alabama.

In Alabama, Georgia and Florida, tornados are possible.

The National Weather Service (NWS) said on Sunday that dozens of locations in multiple states are expected to reach a “major flooding phase” with potentially widespread flooding of important infrastructure, including roads and bridges.

The 18 people died, including 10 in Tennessee since the storm began Wednesday, according to the Associated Press News.

A nine-year-old boy in Kentucky was struggling by floods while walking on a school bus. Police said a five-year-old boy in Arkansas fell into his family’s home after his death and trapped him.

A 16-year-old volunteer in Missouri died in a crash while trying to rescue people trapped in a storm.

Hundreds of flights cancelled

According to Flighataware.com, 521 domestic and international flights in the United States were cancelled in the United States, with more than 6,400 delays, with 74 cancellations and 478 delays reported earlier on Sunday.

After the storm broke off jobs in the NWS Forecast Office by President Donald Trump, the administration of U.S. President Donald Trump, had a storm, with half of the vacancy rate at about 20%, or twice as many as a decade ago.