A hydrologist explains why Texas Hill Country is known as Flash Flood Alley and how its geography and geology can lead to ...

When storms roll in, water rushes downhill fast, gaining speed and force as it moves — often with deadly results.

Texas Hill Country is known for its landscapes, where shallow rivers wind among hills and through rugged valleys. That geography also makes it one of the deadliest places in the U.S. for flash ...

Maps show how heavy rainfall and rocky terrain helped create the devastating Texas floods that have killed more than 120 ...

At least 119 people are dead and 173 people are still missing after devastating flash floods in Central Texas.

The death toll from flooding in central Texas rose to at least 43 people, including 15 children, as rescuers search for 27 ...

A perfect storm of a slow-moving pocket of moist air, parched terrain and a hilly area prone to flash flooding unleashed ...

Texas Hill Country is no stranger to extreme flooding. In the rugged, rolling terrain it’s known for, heavy rains collect ...

A storm that dumped more than a foot of rain in the Texas Hill Country has killed 27 people, and officials there are blaming ...

This is a semi-arid area with soils that don’t soak up much water, so the water sheets off quickly and the shallow creeks can rise fast.

The latest death count exceeded 100 people in an area where flooding happens frequently. Of that death toll, more than two ...

Hatim Sharif, a hydrologist and civil engineer at the University of Texas at San Antonio, described Hill Country as a “semi-arid area with soils that don’t soak up much water, so the water ...