Quick Dam: While this only works with lower levels of water, it could buy you precious time in your house during an evacuation or when trying to fortify your place. Have several yards of it ready to go as soon as the emergency horns sound.
Radio: More storms could be coming and more dams could be breaking. You'll only know this if you have word from the outside world. Make sure your radio is waterproof, like this submarine radio, and pack extra batteries.