Roads and bridges can be destroyed quickly. Watch for thunderstorms. Keep an eye on rivers and streams. What to do in case of a flash flood In town, keep away from storm drains and streams. In the suburbs and rural areas, don't let children play in irrigation ditches, dry stream beds or other waterways.
Shallow water can get deep and dangerous fast.
If you are camping, whenever it rains and whenever there is thunder and lightning, keep a battery-powered radio tuned to the news. Move to high ground immediately. Know where there is high ground and how to get there. Be ready to go. If you are in a car, watch for flooding at bridges and dips in the road.