Don’t attempt to through the water. It could be much deeper than it appears. Just 2’ of water can carry a car away. There can also be hazards like washed out roadway underneath. Motorists should leave the area immediately. Make a mental note of where the standing water is located, and report details to the local authorities as soon as it is safe to do so.
http://acgov.org/pwa/info/elnino.htm