The National Weather Service urged people to avoid travel if a flash flood warning was in place for their area.

Flash floods are occurring across the U.S., from Texas to New Jersey. Here's what you should know as risks escalate.

On Thursday at 5:40 p.m. the NWS Raleigh NC issued a flash flood warning in effect until 8:45 p.m. for Davidson and Forsyth counties.

In Kansas City, Kansas, the right lane on westbound K-32, also known as the Kaw Valley Scenic Highway, is closed between South 78th Street and Swartz Road due to flooding. The Kansas Department of Transportation expects the lane to be closed for the next week or two, Kansas City area public information officer Delaney Tholen said.

Hundreds of New Jersey homes were damaged by flooding Monday​, and many families are just beginning the process of filing insurance claims.

The National Weather Service reported that multiple people had to be rescued from floodwaters in Ruidoso on Thursday afternoon.

The Missouri River is not expected to reach any flood stage in Kansas City, but is predicted to cause moderate flooding downstream in Napoleon and Miami, Missouri. The major river has already risen 5 feet, and is forecasted to rise another 3 feet before its crest at around 7 p.m.

A flash flood warning was in effect in New York City until 9:45 p.m., and New Jersey Gov. Phil Murphy declared a state of emergency. Middlesex, Morris and Somerset counties remained under a flood warning until 7:15 a.m. Tuesday.