Flash Flood
Street Sign under Water

Flash Flood Heat Hurricane Lightning Thunderstorm Tornado Winter Storm
SAFETY RULES TO SURVIVE THE WEATHER
Flash Flood Watch:
Means a flash flood is possible within the designated watch area.

Flash Flood Warning:
Means a flash flood has been reported or is imminent. Take necessary precautions immediately.

Facts

  • Flash floods are caused by heavy rain, such as in a thunderstorm or during an extended period of precipitation, or by dam failure. The wave can move at incredible speeds and can carry boulders, trees, houses and other debris along with it. It can reach heights of 20 feet and higher.

  • Be careful at night. Seventy-five percent of flash flood fatalities occur at night. Makes sense. You can not see the rising water after dark and add to that, evening thunderstorms dump most of their rain close to or after nightfall.

  • All people living along streams, creeks and rivers should be on alert anytime heavy rain falls in the area.

Safety Precautions

During A Flood Watch:

  • Listen to a battery-operated radio for the latest storm information.
  • Fill bathtubs, sinks, and jugs with clean water in case water becomes contaminated.
  • Bring outdoor belongings, such as patio furniture, indoors.
  • Move valuable household possessions to the upper floors or to safe ground if time permits.
  • If you are instructed to do so by local authorities, turn off all utilities at the main switch and close the main gas valve.
  • Be prepared to evacuate.

During a Flood:

If you know a Flash Flood is heading toward you, or you hear a Flash Flood Warning, act quickly.

If indoors:

  • Turn on battery-operated radio or television to get the latest emergency information.

  • Get your preassembled emergency supplies.

  • If told to leave, do so immediately.

If outdoors:

  • Climb to high ground and stay there.

  • Avoid walking through any floodwaters. If it is moving swiftly, even water 6 inches deep can sweep you off your feet.

If in a car:

  • If you come to a flooded area, turn around and go another way.

  • Never drive through water flowing over a bridge or road.

  • If the car becomes trapped, get out and move to higher ground.

  • If your car stalls, abandon it immediately and climb to higher ground. Many deaths have resulted from attempts to move stalled vehicles.

If camping out along a stream or river:

  • Run to higher ground.

During an Evacuation:

  • If advised to evacuate, do so immediately.

  • Evacuation is much simpler and safer before flood waters become too deep for ordinary vehicles to drive through.

  • Listen to a battery-operated radio for evacuation instructions.

  • Follow recommended evacuation routes--shortcuts may be blocked.

  • Leave early enough to avoid being marooned by flooded roads.

After

Flood dangers do not end when the water begins to recede. Listen to a radio or television and don't return home until authorities indicate it is safe to do so.

Remember to help your neighbors who may require special assistance--infants, elderly people, and people with disabilities.

Inspect foundations for cracks or other damage.

Stay out of buildings if flood waters remain around the building.

When entering buildings, use extreme caution.

  • Wear sturdy shoes and use battery-powered lanterns or flashlights when examining buildings.

  • Examine walls, floors, doors, and windows to make sure that the building is not in danger of collapsing.

  • Watch out for animals, especially poisonous snakes, that may have come into your home with the flood waters. Use a stick to poke through debris.

  • Watch for loose plaster and ceilings that could fall.

  • Take pictures of the damage--both to the house and its contents for insurance claims.

Look for fire hazards.
  • Broken or leaking gas lines

  • Flooded electrical circuits

  • Submerged furnaces or electrical appliances

  • Flammable or explosive materials coming from upstream

Throw away food--including canned goods--that has come in contact with flood waters.

Pump out flooded basements gradually (about one-third of the water per day) to avoid structural damage.

Service damaged septic tanks, cesspools, pits, and leaching systems as soon as possible. Damaged sewage systems are health hazards.

Inspecting Utilities in a Damaged Home:

Check for gas leaks--If you smell gas or hear blowing or hissing noise, open a window and quickly leave the building. Turn off the gas at the outside main valve if you can and call the gas company from a neighbor's home. If you turn off the gas for any reason, it must be turned back on by a professional.

Look for electrical system damage--If you see sparks or broken or frayed wires, or if you smell hot insulation, turn off the electricity at the main fuse box or circuit breaker. If you have to step in water to get to the fuse box or circuit breaker, call an electrician for advice.

Check for sewage and water lines damage--If you suspect sewage lines are damaged avoid using the toilets and call a plumber. If water pipes are damaged, contact the water company and avoid the water from the tap. You can obtain safe water by melting ice cubes.

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