The National Weather Service issued multiple alerts ahead of the deadly floods that devastated central Texas, but whether people actually responded to them is an important question.

The deluge that ripped through the Texas Hill Country is already considered one of the deadliest floods in the U.S. in the past 100 years. There remain concerns that more rain in the coming days could cause additional destruction. Rescue efforts continued Monday, July 7, under a fresh slate of flash flood warnings.