Texas leads the country in flash flood deaths most years, and the majority of those deaths happen inside a vehicle. Low-water crossings, underpasses, and normally dry creek beds can fill with fast-moving water in minutes during a heavy storm, often faster than drivers expect based on how the road looked just an hour earlier.
Turn around, don't drown. It sounds simple because it is: never drive into standing or moving water on a roadway, even if it looks shallow or you've crossed it before. Just twelve inches of moving water can float a car, and two feet can carry away most SUVs and trucks. You can't reliably judge depth or road condition under floodwater from the driver's seat.
Recognizing when conditions have changed enough to alter your route is a core defensive driving habit, not just a flood-specific one. It's the same instinct covered in our Houston-area driving safety course and every course we offer: recognize the hazard early, and choose the safer option before you're forced into a split-second decision.