You may not be notified of a flash flood warning before flooding actually begins. If you hear a flash flood watch for your area, it's a good idea to stay on high ground. If you hear a flash flood warning , climb to higher ground immediately. Leave your car, camping gear, or other belongings where they are. You may have only minutes to escape.
Flash floods can happen without warning.
If you hear a rumbling sound, if animals are running away from where you are, or if you feel the ground shaking, climb to higher ground immediately. If you live near the coast, you will be asked to evacuate when a hurricane threatens your community. It is important to evacuate when you are asked to. Prepare your flood response plan to take into account all of the time that you will need to protect your home before you evacuate. You will need time to board your windows and to clear your yard so that your belongings will not blow or float away.