Flooding is an overflowing of water onto land that is normally dry. Floods can happen during heavy rains, when ocean waves come on shore, when snow melts too fast, or when dams or levees break. Flooding may happen with only a few inches of water, or it may cover a house to the rooftop. They can occur quickly or over a long period and may last days, weeks, or longer. Floods are the most common and widespread of all weather-related natural disasters.
Flash floods are the most dangerous kind of floods, because they combine the destructive power of a flood with incredible speed and unpredictability. Flash floods occur when excessive water fills normally dry creeks or river beds along with currently flowing creeks and rivers, causing rapid rises of water in a short amount of time. They can happen with little or no warning.
Some simple advance preparation will help you be ready for possible floods in your area.
01-Know the flood warning system in your community and be sure your family knows the warning. Instruct family members in emergency procedures during a flood warning. If you live in an area subject to frequent or sudden floods, especially flash floods, you may wish to have family flood drills. Assign each family member an emergency task such as gathering emergency supplies, turning off utilities, or listening to the radio for instructions.
02-Flood proof your buildings. Install check valves in sewer traps to prevent water from backing up in sewer drains. Seal cracks in walls and floors with hydraulic cement. Place heavy screens over lower windows to prevent breakage from floating objects.
03-Be ready to protect appliances from minor flooding. Put a half-block of cement under each corner of refrigerators, freezers, washing machines and dryers. Use bricks or boards if you don't have cement blocks.
04-Identify fire hazards. During a flood, fire danger is increased. In addition, fire departments may be unable to get to fires through high water. Watch for these fire hazards on your property:
Broken or leaking gas lines,
flooded electrical circuits,
submerged furnaces or electrical appliances
flammable or explosive materials coming from upstream.
05-Before floodwaters crest, turn off the main power switch if you think the electrical circuits are going to be underwater. Never Touch The Switch While You Are Wet Or Standing In Water. Do not turn the electrical system back on until it has been inspected by an electrician.
06-Know what a river height forecast means for your property especially how far your property is above or below expected flood levels.
Know where to go in case of flooding. Remember that you must seek higher ground as quickly as possible, on foot if necessary.
07-If you are camping, know how far your campsite is above nearby waterways. Know how to seek higher ground. Stay out of unknown water paths such as dry creeks or river beds. If advised to leave the area, do so immediately.
Listen to the radio to find out what areas are affected, what roads are safe, where to go and what to do if the local emergency team asks you to leave your home.
Keep your emergency kit close at hand, in a portable container such as a duffel bag, backpack, or suitcase with wheels.
If you need to evacuate
Vacate your home when you are advised to do so by local emergency authorities. Ignoring such a warning could jeopardize the safety of your family or those who might eventually have to come to your rescue.
Take your emergency kit with you.
Follow the routes specified by officials. Don't take shortcuts. They could lead you to a blocked or dangerous area.
Make arrangements for pets.
Time permitting, leave a note informing others when you left and where you went. If you have a mailbox, leave the note there
Never cross a flooded area
If you are on foot, fast water could sweep you away.
If you are in a car, do not drive through flood waters or underpasses. The water may be deeper than it looks and your car could get stuck or swept away by fast water.
Avoid crossing bridges if the water is high and flowing quickly.
If you are caught in fast-rising waters and your car stalls, leave it and save yourself and your passengers.
Wait until it is safe to return.
Monitor NOAA Weather Radio or local television and radio stations.
Do not return to flooded areas until authorities indicate it is safe to do so.
Do not visit disaster areas following a flood. Your presence may hamper urgent emergency response and rescue operations.
Travel with care.
Follow recommended routes. DO NOT sightsee.
Watch for washed out roads, earth slides, and downed trees or power lines.
Stay away from downed power lines.
If a building was flooded, check for safety before entering.
Do not enter a building if it is still flooded or surrounded by floodwater.
Check for structural damage. Inspect foundations for cracks or other damage.
Turn off any outside gas lines at the meter tank.
Do not enter a building that has flooded until local building officials have inspected it for safety.
Use extreme caution when entering buildings.
Wear sturdy shoes. The most common injury following a disaster is cut feet.
Use ONLY battery-powered lighting. Flammable material may be present.
Look for fire hazards (such as damaged gas lines, flooded electrical circuits, or submerged furnaces).
Check for gas leaks. If you smell gas or hear a blowing or hissing noise, open a window and quickly leave the building. If possible turn off the gas at the outside main valve. Call the gas company.
Report broken utility lines to appropriate authorities.
Check for electrical system damage (sparks, broken or frayed wires, or the smell of burning insulation). Turn off the electricity at the main circuit breaker if you can reach it without stepping in water.
Examine walls, floors, doors, windows, and ceilings for risk of collapsing.
Watch out for animals that might have entered with the floodwaters.
Let the building air out to remove foul odors or escaping gas.
Take pictures of the damage, both of the building and its contents, for insurance claims.
Get professional help.
Seek necessary medical care. Do not neglect minor wounds or illnesses.
Food, clothing, shelter, and first aid are available from the American Red Cross.
If the gas has been turned off for any reason, it must be turned back on by a professional.
Have an electrician check the electrical system and appliances.
Wells should be pumped out and the water tested for purity before drinking.
Your home is no longer a safe place.
Throw away medicine, food, or water that had contact with floodwaters (including canned goods).
If water is of questionable purity, boil drinking water for 10 minutes.
Restrict children from playing in flooded areas.
Keep windows and doors open for ventilation.
Pump out flooded basements gradually (removing about 1/3 of the water volume each day) to avoid structural damage.
Keep the power off until an electrician has inspected the system for safety. All electrical equipment should be checked and dried before being returned to service.
Clean and disinfect everything that got wet.
Service damaged sewage systems as soon as possible.
When making repairs, protect your property from future flood damage.
Follow local building codes.
Use flood-resistant materials and techniques.
Elevate electrical components above the potential flood height.
Elevate utilities (washer, dryer, furnace, and water heater) above the level of anticipated flooding.
Consider elevation of the entire structure.
Install a backflow valve in the sewer system.
Here are some videos from Youtube that show you how it looks like.
Credit to the owner of the video
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