Heavy rainfall swept across North and Central Jersey July 14, leading to road closures, power outages and flash flooding.

Flash flooding ranks among the top weather-related killers in the U.S. But what is it exactly, and how does it happen?

The official definition of a flash flood warning says it is issued when “flash flooding is in progress, imminent, or highly likely.” ...

The main thing about a flash flood is its speed. By definition, the rushing waters begin within six hours after an intense storm—and often within three hours, which is why it’s called a flash.

People usually only have hours of notice in advance. The disaster in Texas was a worst-case scenario.

Flash floods happen when there is heavy rainfall. There isn’t a global definition of what a flash flood is. Predicting rainfall is harder than it seems, and there are other complicated factors ...

Explainer - Hundreds are dead or missing in Texas flash floods. The Tasman District has been hit hard. Why is flash flooding ...

Upon notice of catastrophic flooding in her hometown, 1st. Lt. Emily Ake, public affairs officer for the 5th Armored Brigade ...