Rescue efforts included over 2,100 responders on the ground, private helicopters, drones, boats and cadaver-detecting dogs.

There are reports some cloud seeding occurred a few days before the Texas flash flood. But it’s important to understand that cloud seeding has a relatively short-term effect in that a certain cloud is seeded and perhaps turns into one individual rain cloud or even a thunderstorm. The increased rainfall would not last for days.

As crews search for missing people after flash floods killed at least 120 in Texas, cities across the U.S. grapple with rising flood waters.

This part of Texas is one of the most flood-prone areas in the entire world. Here’s a look at some of the region’s worst floods on record.

Multiple parts of Central Texas, including Kerr County, were shocked by flash floods Friday when the Guadalupe River rose rapidly.