Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

Scholars and designers of early warning systems say that there are still huge gaps in our ability to predict flash floods and warn those at risk.

In the Midwest, quarter-sized hail and an isolated tornado cannot be ruled out, while in the South, flood alerts are in effect for areas that were devastated by flash floods last week.

Search crews continued the grueling task of recovering the missing as more potential flash flooding threatened Texas Hill Country.

Flash floods in Texas have killed at least 107 people over the Fourth of July weekend, with more than 160 still missing.

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. And there’s no more dangerous time for a flash flood than after dark;

Recent flash flooding in Texas​, New Mexico​ and North Carolina​ is highlighting the extreme danger of these natural disasters and the need to be prepared.

Communities in rural Vermont face damaged homes and washed-out roads after heavy rainfall caused flash flooding.