Floods are the most common natural disaster in the United States. Three fourths of all presidential disaster declarations are associated with flooding. In most years it causes more damage than any other severe weather related event. Although many floods are caused by huge storms like hurricanes, more floods occur every day and can result from small, localized events, such as a typical afternoon thunderstorm.
Unfortunately, most flood fatalities are not due to limitations in the forecast system. All too often, people in vehicles literally drive into harm's way. As little as 2 feet of water can float an average car. While it may appear that water is not deep enough to cause problems, there is almost no way of knowing if the roadbed itself has been eroded or undermined.
What to do before a flood
What to do during heavy rains
What to do after a flood