Flash flooding is weather’s No. 2 killer, claiming more lives than anything but heat, so it’s important to understand what causes it and how to stay safe.

Flash floods often manifest as walls of water that can wash away most things in its path and carry debris; they can reach heights of 30 feet or more and trigger equally dangerous mudslides.

If a flash flood warning is issued, move to higher ground immediately. Avoid low-lying roads, underpasses, and creeks, especially at night when it’s harder to see rising water.

What to know about flash flooding and warnings. One of the worst floods in a Texas rivers' history left dozens dead over the Independence Day weekend. Hotspots ranked Start the day smarter ☀️ ...