Authorities in Texas have rescued dozens of stranded drivers and people trapped in homes and at least one person has died due to catastrophic flooding. Gov.

The deluge comes one year after floods in the same region killed more than 100 people, including many young campers.

"This is an extremely dangerous and life-threatening situation."

Flood sirens blared early Thursday in Comfort, Texas, as the Guadalupe River rose more than 30 feet in three hours, the U.S. Geological Survey said. The storm could bring even more rainfall than last year's deadly Fourth of July floods.

Heavy downpours are still drenching South Texas with the possibility of dangerous flash flooding. The storms also spawned a tornado in San Antonio on Wednesday morning.

Gov. Greg Abbott issued a disaster declaration for 59 counties as storms slam Texas, including Bexar County, Uvalde County, and Medina County.

Critical flood emergencies declared in Uvalde County and along the Guadalupe and Pedernales rivers.