When floodwaters begin rising, quickly amass only those things that will help you survive the imminent threat, such as fresh water, food, flashlights and other basic survival tools. A sharp knife is especially handy because of its versatility. Burdening yourself with other items such as valuables or keepsakes only decreases your mobility. And in emergency situations, keeping track of ancillary items will be difficult.
Evacuate if possible. If you have prior warning about the impending flood, get out quickly. Attempting to sandbag your property is not usually effective in fighting rising floodwaters. Sandbagging does not work in swift waters, and actually can place you in direct physical danger once the barricade breaks. Follow evacuation routes broadcast by local news and avoid low-lying areas if possible. If you do come upon a flooded roadway, do not attempt to cross it. The hidden current easily can be stronger than you realize and might sweep you into the floodwaters. If the waters have already risen and automobile transportation is impossible, use whatever seaworthy boating you have. Canoes and small rowboats work well because of their shallow draft, allowing them superior maneuverability in tight quarters. However, beware of excessively strong currents that can take you into unnavigable areas.
If, despite your best efforts, it is impossible to get clear of the flood affected area, proceed to the highest ground. This may mean you will be cut off from supplies for a period of time. However, it is better to remain still and wait for rescue rather than attempting a dangerous water crossing that may put you or others in danger. Use your cell phone to attempt to alert authorities to your plight. Land lines likely will be inoperative.