Back-to-back flooding disasters in recent years — in Texas, New Mexico and Kentucky, among many others — have showed that preparing for flash flooding is a new necessity as the planet warms.

Volunteers with Samaritan's Purse are helping flood victims in central Texas with hard work and lots of prayer. (Credit: Derek Shook for Fox News Digital, Samaritan's Purse)

River gauges, sirens and clear alerts can together help emergency managers anticipate flash floods and communicate life-saving information.

The data also highlights critical risks in other areas along the Guadalupe River in Kerr County, revealing more than twice as many Americans live in flood prone areas than FEMA's maps show.

Downpours set off flood warnings Wednesday night for Philly and surrounding areas, and most of Chester County and northern Delaware. These conditions may be around until Monday, maybe longer.

Crissy and Avi Eliashar bought their home in Jonestown, Texas, 13 years ago. They never had a problem with flooding until water washed away their home. Like many victims of the Texas flood, they don’t have flood insurance to help cover the losses.

Bill Nye claims climate change has worsened Texas flooding disasters, arguing that the U.S. government needs to take climate change more seriously.