How To Prepare For Flash Floods

H O W T O P R E P A R E F O R F L A S H F L O O D S

Historically, flash flooding is the deadliest and most damaging hazard in our region. This natural disaster continues to pose a high-priority threat to the region. Flooding can occur along a waterway in one drainage area or in larger watersheds. Flash floods can develop quickly, sometimes in just a few minutes and without any visible signs of rain. Flash floods often have a dangerous wall of roaring water that carries rocks, mud, and other debris and can sweep away most things in its path.

Flood preparedness and mitigation are essential to reduce or eliminate risks to persons or property or to minimize the effects or consequences of flooding. Implementing measures to mitigate flooding before, during, and after an incident will be crucial in reducing potential damage.

Here are some tips to help you prepare before, during, and after a flood:

BEFORE A FLOOD

Check the FEMA National Flood Insurance website (www.floodsmart.gov) to determine the risk of flooding. Elevate and reinforce your residence if you live or plan to build in a flood-prone area. Elevate the furnace, water heater, and electric panel if your residence or business is susceptible to flooding.

Install back-flow valves in piping to prevent floodwater from backing up into the drains of your residence. Seal the walls in your basement with waterproofing compounds to avoid seepage. Move to higher ground if there is any possibility of a flash flood.

DURING A FLOOD

Be aware of streams, drainage channels, canyons, and other areas known to suddenly flood. A “dry” creek bed will carry water during a rain event. Turn off utilities at the main switches or valves if instructed to do so. Disconnect electrical appliances. Do not touch electrical equipment if you are wet or standing in water. Secure your residence by bringing in outdoor furniture and moving essential items to an upper floor, only if it is safe to do so. Do not attempt to walk or drive through flowing water. Never drive into water of unknown depth.

Listen for news reports to learn whether the water supply is safe to drink. Avoid floodwater as it may be contaminated by oil, gasoline, raw sewage, or may be electrically charged from underground or downed power lines. Return to your residence only when authorities indicate it is safe. Use extreme caution when entering buildings due to potential hidden water damage. Clean and disinfect everything that was wet.

AFTER A FLOOD

Driving during flooding events is dangerous because it's impossible to judge how deep or rapid the water is until it's too late, putting your life and your passengers at risk. More deaths are caused by flooding each year than by any other severe weather-related hazard. This is because drivers tend to underestimate the strength and speed of water. Over half of all flood-related deaths occur when vehicles are driven into floodwater, according to the Centers for Disease Control. Many deaths result from drowning in automobiles as they are swept downstream. These deaths could have been prevented if people had heeded the warning signs of flooding on the roads. The next leading cause of flood-related deaths is walking into or near flood waters. So, whether driving or walking, any time you come to a flooded road, TURN AROUND, DON'T DROWN!

FLOOD FACTS

Six inches of moving water can make an adult fall. Six inches of water will reach the bottom of most passenger cars causing loss of control and possible stalling. A foot of water will float many vehicles. Two feet of rushing water can carry away most vehicles including sport utility vehicles (SUVs) and pick-ups.

Avoid areas already flooded, especially if the water is flowing fast. Do not attempt to cross flowing streams. Do not drive into flooded areas. You and the vehicle can be quickly swept away. Road beds may be washed out under flood waters. NEVER drive through flooded roadways - you do not know the condition of the road under the water. Do not camp or park your vehicle along streams and washes, particularly during threatening conditions. Move to higher ground if heavy rain or rising water occurs. Creeks and streams can rise very rapidly during heavy rainfall. Be especially cautious at night when it is harder to recognize flood dangers.

DRIVING DURING A FLOOD

Here are some tips for driving during a flood: