Quick Answer
FLOODING RISK IN A TORNADO SHELTER IS LOW IF THE SHELTER IS PROPERLY DESIGNED AND CONSTRUCTED, BUT IT'S NOT IMPOSSIBLE. MOST TORNADO SHELTERS ARE BUILT TO WITHSTAND WATER PRESSURE, BUT YOU SHOULD STILL BE AWARE OF THE POTENTIAL. IT'S ESSENTIAL TO UNDERSTAND YOUR SHELTER'S SPECIFIC DESIGN AND CAPABILITIES.
Understanding Your Shelter’s Flood Risk
When assessing your tornado shelter’s flood risk, consider the location and elevation of the shelter. Ideally, your shelter should be below ground level, but not so deep that water cannot drain out. If your shelter is located in a low-lying area or near a water source, you may need to take additional precautions.
Design Features to Look For
A well-designed tornado shelter will include features such as a waterproof door, a drainage system, and a waterproof coating or liner to prevent water infiltration. The shelter’s walls and floor should also be constructed to withstand water pressure. Look for a shelter with a design pressure rating of at least 20-30 psi (pounds per square inch) to ensure it can withstand water pressure.
Preparing for Flooding in a Tornado Shelter
While the risk of flooding is low, it’s still essential to be prepared. Store a minimum of 3-5 gallons of water per person in the shelter, along with a water purification method, such as a water filter or purification tablets. You should also have a backup power source, such as a battery-powered radio or a portable generator, to stay informed and connected in case of an extended shelter stay.
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