595 Americans have died in floodwater since 2011. A few fell into rivers or drowned while fishing on flooded waterways.
And some children died playing too close to high water.
But 61 percent of victims died in vehicles, often after driving around barriers or ignoring signs warning them to turn back.
Texas has had more flood-related deaths than any other state since 2011.
When torrential rains in late April led to flooding across Missouri, five people died driving onto flooded roads.
The death toll would have been worse if not for hundreds of water rescues.
Although warning systems are becoming more sophisticated and barriers more secure,
experts agree that when it comes to preventing flooding deaths while driving, "common sense must prevail."