The risk of life-threatening flooding is still high in central Texas with more rain on the way. Searchers now have found 68 bodies in Kerr County, where a wall of water came down the Guadalupe River.

The flooding brought the Guadalupe to its second-highest point in history, according to the National Weather Service, which urged people in the affected area to move to higher ground.

After floods left more than 80 dead in Texas, questions are emerging about how to provide better warnings in a region known as “flash flood alley.”