Even in places where the floods have let up, the storm isn’t over: Floods can lead to excess deaths long after the actual event. “The health impacts of flooding aren’t just immediate,” wrote Katelyn Jetelina last week in her newsletter, Your Local Epidemiologist. “They often unfold over weeks and months.”

Before and after satellite images from Texas show the effects of the devastating flooding that occurred along the Guadalupe River on July 4.