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Delaware

September 15th, 2003. A car is stopped as flooding waters rise on the road.
Sep 15, 2003
Tropical Storm Henri’s pounding rain flooded the state to such a degree that meteorologists called it a once-in-five-hundred-year event. Floodwater swallowed up hundreds of homes and businesses, including 194 in the Glenville area alone. Damage across the state was valued at $16.1 million.

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Some Common Natural Hazards
View from space of a hurricane in the Gulf of Mexico

A hurricane is a type of tropical cyclone or severe tropical storm that forms in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and in the eastern Pacific Ocean. A typical cyclone is accompanied by thunderstorms, and in the Northern Hemisphere, a counterclockwise circulation of winds near the earth’s surface.

All Atlantic and Gulf of Mexico coastal areas are subject to hurricanes. Parts of the Southwest United States and the Pacific Coast also experience heavy rains and floods each year from hurricanes spawned off Mexico. The Atlantic hurricane season lasts from June to November, with the peak season from mid-August to late October. The Eastern Pacific hurricane season begins May 15 and ends November 30.

Hurricanes can cause catastrophic damage to coastlines and several hundred miles inland. Hurricane can produce winds exceeding 155 miles per hour as well as tornadoes and mircrobursts. Additionally, hurricanes can create storm surges along the coast and cause extensive damage from heavy rainfall. Floods and flying debris from the excessive winds are often the deadly and destructive results of these weather events. Slow moving hurricanes traveling into mountainous regions tend to produce especially heavy rain. Excessive rain can trigger landslides or mud slides. Flash flooding can occur due to intense rainfall.

Between 1970 and 1999, more people lost their lives from freshwater inland flooding associated with tropical cyclones than from any other weather hazard related to such storms.

A man nailing plywood over the windows of his home.Before a Hurricane

To prepare for a hurricane, you should take the following measures:

  • To begin preparing, you should build an emergency kit and make a family communications plan.
  • Know your surroundings.
  • Learn the elevation level of your property and whether the land is flood-prone. This will help you know how your property will be affected when storm surge or tidal flooding are forecasted.
  • Identify levees and dams in your area and determine whether they pose a hazard to you.
  • Learn community hurricane evacuation routes and how to find higher ground. Determine where you would go and how you would get there if you needed to evacuate.
  • Make plans to secure your property:
  • Cover all of your home’s windows. Permanent storm shutters offer the best protection for windows. A second option is to board up windows with 5/8” marine plywood, cut to fit and ready to install. Tape does not prevent windows from breaking.
  • Install straps or additional clips to securely fasten your roof to the frame structure. This will reduce roof damage.
  • Be sure trees and shrubs around your home are well trimmed so they are more wind resistant.
  • Clear loose and clogged rain gutters and downspouts.
  • Reinforce your garage doors; if wind enters a garage it can cause dangerous and expensive structural damage.
  • Plan to bring in all outdoor furniture, decorations, garbage cans and anything else that is not tied down.
  • Determine how and where to secure your boat.
  • Install a generator for emergencies.
  • If in a high-rise building, be prepared to take shelter on or below the 10th floor.
  • Consider building a safe room.

Hurricanes cause heavy rains that can cause extensive flood damage in coastal and inland areas. Everyone is at risk and should consider flood insurance protection. Flood insurance is the only way to financially protect your property or business from flood damage. To learn more about your flooding risk and how to protect yourself and your business, visit the Federal Insurance and Mitigation Administration (NFIP) Web site,www.floodsmart.gov or call 1-800-427-2419. For more detailed information on how you can protect your property, view NFIP’s printer-friendly handout Avoiding Hurricane Damage.

Saffir-Simpson Hurricane Wind Scale

The Saffir-Simpson Hurricane Wind Scale classifies hurricanes into five categories based on their sustained wind speed at the indicated time.  The Saffir-Simpson Hurricane Wind Scale provides information on wind impacts only.  The scale does not address the potential for other hurricane-related impacts, such as storm surge, rainfall-induced floods, and tornadoes.

Hurricanes reaching Category 3 and higher are considered major hurricanes because of their potential for significant loss of life and property.  Category 1 and 2 storms are still dangerous, however, and require preventive measures.

Saffir-Simpson Hurricane Wind Scale Summary

Scale Number (Category)

Sustained Winds (MPH)

Damage

1

74-95

Very dangerous winds will produce some damage

  • Minor damage to exterior of homes
  • Toppled tree branches, uprooting of smaller trees
  • Extensive damage to power lines, power outages

2

96-110

Extremely dangerous winds will cause extensive damage

  • Major damage to exterior of homes
  • Uprooting of small trees and many roads blocked
  • Guaranteed power outages for long periods of time – days to weeks

3

111-129

Devastating damage will occur

  • Extensive damage to exterior of homes
  • Many trees uprooted and many roads blocked
  • Extremely limited availability of water and electricity

4

130-156

Catastrophic damage will occur

  • Loss of roof structure and/or some exterior walls
  • Most trees uprooted and most power lines down
  • Isolated residential due to debris pile up
  • Power outages lasting for weeks to months

5

157 or higher

Catastrophic damage will occur

  • A high percentage of homes will be destroyed
  • Fallen trees and power lines isolate residential areas
  • Power outages lasting for weeks to months
  • Most areas will be uninhabitable

For more information on the Saffir-Simpson Hurricane Wind Scale, visit the National Hurricane Center.

For information on the Scale as it affects Hawaii, visit the National Hurricane Center here. 

Storm Surge

The greatest potential for loss of life related to a hurricane is from the storm surge!

Storm surge is simply water that is pushed toward the shore by the force of the winds swirling around the storm. This advancing surge combines with the normal tides to create the hurricane storm tide, which can increase the mean water level to heights impacting roads, homes and other critical infrastructure. In addition, wind driven waves are superimposed on the storm tide. This rise in water level can cause severe flooding in coastal areas, particularly when the storm tide coincides with the normal high tides. Because much of the United States' densely populated Atlantic and Gulf Coast coastlines lie less than 10 feet above mean sea level, the danger from storm tides is tremendous.

The storm surge combined with wave action can cause extensive damage, severely erode beaches and coastal highways. With major storms like Katrina, Camille and Hugo, complete devastation of coastal communities occurred. Many buildings withstand hurricane force winds until their foundations, undermined by erosion, are weakened and fail.

Know the Terms

Familiarize yourself with these terms to help identify a hurricane hazard:

Tropical Cyclone: A warm-core non-frontal synoptic-scale cyclone, originating over tropical or subtropical waters, with organized deep convection and a closed surface wind circulation about a well-defined center. Once formed, a tropical cyclone is maintained by the extraction of heat energy from the ocean at high temperature and heat export at the low temperatures of the upper troposphere.

Tropical Depression: A tropical cyclone in which the maximum sustained surface wind speed (using the U.S. 1-minute average) is 38 mph (33 knot) or less.

Tropical Storm: A tropical cyclone in which the maximum sustained surface wind speed (using the U.S. 1-minute average) ranges from 39 mph (34 knots) to 73 mph (63 knots).

Hurricane: A tropical cyclone in which the maximum sustained surface wind (using the U.S. 1-minute average) is 74 mph (64 knots) or more.

Storm Surge: An abnormal rise in sea level accompanying a hurricane or other intense storm, and whose height is the difference between the observed level of the sea surface and the level that would have occurred in the absence of the cyclone. Storm surge is usually estimated by subtracting the normal or astronomic high tide from the observed storm tide.  Storm surge can reach heights well over 20 feet and can span hundreds of miles of coastline.

Storm Tide: The actual level of sea water resulting from the astronomic tide combined with the storm surge.

Hurricane Warning: An announcement that hurricane conditions (sustained winds of 74 mph or higher) are expected somewhere within the specified area. Because hurricane preparedness activities become difficult once winds reach tropical storm force, the hurricane warning is issued 36 hours in advance of the anticipated onset of tropical-storm-force winds.

Hurricane Watch: An announcement that hurricane conditions (sustained winds of 74 mph or higher) are possible within the specified area. Because hurricane preparedness activities become difficult once winds reach tropical storm force, the hurricane watch is issued 48 hours in advance of the anticipated onset of tropical-storm-force winds.

Tropical Storm Warning: An announcement that tropical storm conditions (sustained winds of 39 to 73 mph) are expected somewhere within the specified area within 36 hours.

Tropical Storm Watch: An announcement that tropical storm conditions (sustained winds of 39 to 73 mph) are possible within the specified area within 48 hours.

Short Term Watches and Warnings: These watches/warnings provide detailed information about specific hurricane threats, such as flash floods and tornadoes.

During a Hurricane

If a hurricane is likely in your area, you should:

  • Listen to the radio or TV for information.
  • Secure your home, close storm shutters and secure outdoor objects or bring them indoors.
  • Turn off utilities if instructed to do so. Otherwise, turn the refrigerator thermostat to its coldest setting and keep its doors closed.
  • Turn off propane tanks
  • Avoid using the phone, except for serious emergencies.
  • Moor your boat if time permits.
  • Ensure a supply of water for sanitary purpose such as cleaning and flushing toilets. Fill the bathtub and other larger containers with water.
  • Find out how to keep food safe during and after and emergency.

You should evacuate under the following conditions:

If you are directed by local authorities to do so. Be sure to follow their instructions.

  • If you live in a mobile home or temporary structure – such shelter are particularly hazardous during hurricane no matter how well fastened to the ground.
  • If you live in a high-rise building – hurricane winds are stronger at higher elevations.
  • If you live on the coast, on a floodplain, near a river, or on an island waterway.

Read more about evacuating yourself and your family. If you are unable to evacuate, go to your wind-safe room. If you do not have one, follow these guidelines:

  • Stay indoors during the hurricane and away from windows and glass doors.
  • Close all interior doors – secure and brace external doors.
  • Keep curtains and blinds closed. Do not be fooled if there is a lull; it could be the eye of the storm – winds will pick up again.
  • Take refuge in a small interior room, closet or hallway on the lowest level.
  • Lie on the floor under a table or another sturdy object.
  • Avoid elevators.

After a Hurricane

  • Continue listening to a NOAA Weather Radio or the local news for the latest updates.
  • Stay alert for extended rainfall and subsequent flooding even after the hurricane or tropical storm has ended.
  • If you have become separated from your family, use your family communications plan or contact FEMA or the American Red Cross.
    • FEMA has established the National Emergency Family Registry and Locator System (NEFRLS), which has been developed to help reunite families who are separated during a disaster. The NEFRLS system will enable displaced individuals the ability to enter personal information into a website database so that they can be located by others during a disaster.
    • The American Red Cross also maintains a database to help you find family. Contact the local American Red Cross chapter where you are staying for information. Do not contact the chapter in the disaster area.
  • If you evacuated, return home only when officials say it is safe.
  • If you cannot return home and have immediate housing needs. Text SHELTER + your ZIP code to 43362 (4FEMA) to find the nearest shelter in your area (example: shelter 12345).
  • For those who have longer-term housing needs, FEMA offers several types of assistance, including services and grants to help people repair their homes and find replacement housing. Apply for assistance or search for information about housing rental resources
  • Drive only if necessary and avoid flooded roads and washed¬ out bridges. Stay off the streets. If you must go out watch for fallen objects; downed electrical wires; and weakened walls, bridges, roads, and sidewalks.
  • Keep away from loose or dangling power lines and report them immediately to the power company.
  • Walk carefully around the outside your home and check for loose power lines, gas leaks and structural damage before entering.
  • Stay out of any building if you smell gas, floodwaters remain around the building or your home was damaged by fire and the authorities have not declared it safe.
  • Inspect your home for damage. Take pictures of damage, both of the building and its contents, for insurance purposes. If you have any doubts about safety, have your residence inspected by a qualified building inspector or structural engineer before entering.
  • Use battery-powered flashlights in the dark. Do NOT use candles. Note: The flashlight should be turned on outside before entering - the battery may produce a spark that could ignite leaking gas, if present.
  • Watch your pets closely and keep them under your direct control. Watch out for wild animals, especially poisonous snakes. Use a stick to poke through debris.
  • Avoid drinking or preparing food with tap water until you are sure it’s not contaminated.
  • Check refrigerated food for spoilage. If in doubt, throw it out.
  • Wear protective clothing and be cautious when cleaning up to avoid injury.
  • Use the telephone only for emergency calls.
  • NEVER use a generator inside homes, garages, crawlspaces, sheds, or similar areas, even when using fans or opening doors and windows for ventilation. Deadly levels of carbon monoxide can quickly build up in these areas and can linger for hours, even after the generator has shut off.

Your friends, neighbors and colleagues are more likely to prepare for the various weather hazards that frequently impact the nation when they see those around them prepare, so inspire them to act by being an example yourself. The first step you can take is to Pledge to Prepare. The resources you will receive once doing so provide tools for making your family and community, safer, more resilient, and better prepared.

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Publications

FEMA Publications

If you require more information about any of these topics, the following are resources that may be helpful.

Other Publications

Related Websites

Find additional information on how to plan and prepare for a hurricane and learn about available resources by visiting the following websites:

Recommended Training

FEMA's Emergency Management Institute (EMI) has developed a training program to encourage community hurricane preparedness. This computer-based course provides basic information about dealing with tropical cyclones and hurricanes. Visit EMI online and select the ‘take this course’ option at the top of the right hand column to take the interactive web-based course.

Listen to Local Officials

Learn about the emergency plans that have been established in your area by your state and local government. In any emergency, always listen to the instructions given by local emergency management officials.

Lightning storm at night

All thunderstorms are dangerous. Every thunderstorm produces lightning. While lightning fatalities have decreased over the past 30 years, lightning continues to be one of the top three storm-related killers in the United States. In 2010 there were 29 fatalities and 182 injuries from lightning. Although most lightning victims survive, people struck by lightning often report a variety of long-term, debilitating symptoms.

Other associated dangers of thunderstorms include tornadoes, strong winds, hail and flash flooding. Flash flooding is responsible for more fatalities – more than 140 annually – than any other thunderstorm-associated hazard. Dry thunderstorms that do not produce rain that reaches the ground are most prevalent in the western United States. Falling raindrops evaporate, but lightning can still reach the ground and can start wildfires.

Before Thunderstorm and Lightning

To prepare for a thunderstorm, you should do the following:

  • To begin preparing, you should build an emergency kit and make a family communications plan.
  • Remove dead or rotting trees and branches that could fall and cause injury or damage during a severe thunderstorm.
  • Postpone outdoor activities.
  • Remember the 30/30 Lightning Safety Rule: Go indoors if, after seeing lightning, you cannot count to 30 before hearing thunder. Stay indoors for 30 minutes after hearing the last clap of thunder.
  • Secure outdoor objects that could blow away or cause damage.
  • Get inside a home, building, or hard top automobile (not a convertible). Although you may be injured if lightning strikes your car, you are much safer inside a vehicle than outside.
  • Remember, rubber-soled shoes and rubber tires provide NO protection from lightning. However, the steel frame of a hard-topped vehicle provides increased protection if you are not touching metal.
  • Shutter windows and secure outside doors. If shutters are not available, close window blinds, shades or curtains.
  • Unplug any electronic equipment well before the storm arrives.
Lightning Safety When Outdoors
If you are: Then:
In a forest Seek shelter in a low area under a thick growth of small trees.
In an open area Go to a low place such as a ravine or valley. Be alert for flash floods.
On open water Get to land and find shelter immediately.
Anywhere you feel your hair stand on end (which indicates that lightning is about to strike) Squat low to the ground on the balls of your feet. Place your hands over your ears and your head between your knees. Make yourself the smallest target possible and minimize your contact it the ground. DO NOT lie flat on the ground.
Facts about Thunderstorms
  • They may occur singly, in clusters or in lines.
  • Some of the most severe occur when a single thunderstorm affects one location for an extended time.
  • Thunderstorms typically produce heavy rain for a brief period, anywhere from 30 minutes to an hour.
  • Warm, humid conditions are highly favorable for thunderstorm development.
  • About 10 percent of thunderstorms are classified as severe – one that produces hail at least three-quarters of an inch in diameter, has winds of 58 miles per hour or higher or produces a tornado.
Facts about Lightning
  • Lightning’s unpredictability increases the risk to individuals and property.
  • Lightning often strikes outside of heavy rain and may occur as far as 10 miles away from any rainfall.
  • “Heat lightning” is actually lightning from a thunderstorm too far away from thunder to be heard. However, the storm may be moving in your direction.
  • Most lightning deaths and injuries occur when people are caught outdoors in the summer months during the afternoon and evening.
  • Your chances of being struck by lightning are estimated to be 1 in 600,000 but could be reduced even further by following safety precautions.
  • Lightning strike victims carry no electrical charge and should be attended to immediately.
Know the Terms

Familiarize yourself with these terms to help identify a thunderstorm hazard:

Severe Thunderstorm Watch - Tells you when and where severe thunderstorms are likely to occur. Watch the sky and stay tuned to NOAA Weather Radio, commercial radio or television for information.

Severe Thunderstorm Warning - Issued when severe weather has been reported by spotters or indicated by radar. Warnings indicate imminent danger to life and property to those in the path of the storm.

During Thunderstorms and Lightning

If thunderstorm and lightning are occurring in your area, you should:

  • Use your battery-operated NOAA Weather Radio for updates from local officials.
  • Avoid contact with corded phones and devices including those plugged into electric for recharging.  Cordless and wireless phones not connected to wall outlets are OK to use.
  • Avoid contact with electrical equipment or cords. Unplug appliances and other electrical items such as computers and turn off air conditioners. Power surges from lightning can cause serious damage.
  • Avoid contact with plumbing. Do not wash your hands, do not take a shower, do not wash dishes, and do not do laundry. Plumbing and bathroom fixtures can conduct electricity.
  • Stay away from windows and doors, and stay off porches.
  • Do not lie on concrete floors and do not lean against concrete walls.
  • Avoid natural lightning rods such as a tall, isolated tree in an open area.
  • Avoid hilltops, open fields, the beach or a boat on the water.
  • Take shelter in a sturdy building. Avoid isolated sheds or other small structures in open areas.
  • Avoid contact with anything metal—tractors, farm equipment, motorcycles, golf carts, golf clubs, and bicycles.
  • If you are driving, try to safely exit the roadway and park. Stay in the vehicle and turn on the emergency flashers until the heavy rain ends. Avoid touching metal or other surfaces that conduct electricity in and outside the vehicle.

After a Thunderstorm or Lightning Strike

If lightning strikes you or someone you know, call 9-1-1 for medical assistance as soon as possible. The following are things you should check when you attempt to give aid to a victim of lightning:

  • Breathing - if breathing has stopped, begin mouth-to-mouth resuscitation.
  • Heartbeat - if the heart has stopped, administer CPR.
  • Pulse - if the victim has a pulse and is breathing, look for other possible injuries. Check for burns where the lightning entered and left the body. Also be alert for nervous system damage, broken bones and loss of hearing and eyesight.

After the storm passes remember to:

  • Never drive through a flooded roadway. Turn around, don’t drown!
  • Stay away from storm-damaged areas to keep from putting yourself at risk from the effects of severe thunderstorms.
  • Continue to listen to a NOAA Weather Radio or to local radio and television stations for updated information or instructions, as access to roads or some parts of the community may be blocked.
  • Help people who may require special assistance, such as infants, children and the elderly or those with access or functional needs.
  • Stay away from downed power lines and report them immediately.
  • Watch your animals closely. Keep them under your direct control.

Publications

FEMA and National Weather Service

If you require more information about any of these topics, the following resources may be helpful.

Related Websites

Find additional information on how to plan and prepare for a thunderstorm and learn about available resources by visiting the following websites:

Listen to Local Officials

Learn about the emergency plans that have been established in your area by your state and local government. In any emergency, always listen to the instructions given by local emergency management officials.

A tornado funnel cloud

Tornadoes are nature’s most violent storms. Spawned from powerful thunderstorms, tornadoes can cause fatalities and devastate a neighborhood in seconds. A tornado appears as a rotating, funnel-shaped cloud that extends from a thunderstorm to the ground with whirling winds that can reach 300 miles per hour. Damage paths can be in excess of one mile wide and 50 miles long. Every state is at some risk from this hazard. Some tornadoes are clearly visible, while rain or nearby low-hanging clouds obscure others. Occasionally, tornadoes develop so rapidly that little, if any, advance warning is possible. Before a tornado hits, the wind may die down and the air may become very still. A cloud of debris can mark the location of a tornado even if a funnel is not visible. Tornadoes generally occur near the trailing edge of a thunderstorm. It is not uncommon to see clear, sunlit skies behind a tornado.

Storm clouds gathering over a rural areaBefore a Tornado

  • To begin preparing, you should build an emergency kit and make a family communications plan.
  • Listen to NOAA Weather Radio or to commercial radio or television newscasts for the latest information. In any emergency, always listen to the instructions given by local emergency management officials.
  • Be alert to changing weather conditions. Look for approaching storms.
  • Look for the following danger signs:
    • Dark, often greenish sky
    • Large hail
    • A large, dark, low-lying cloud (particularly if rotating)
    • Loud roar, similar to a freight train.
    • If you see approaching storms or any of the danger signs, be prepared to take shelter immediately.
Tornado Facts

Quick facts you should know about tornadoes:

  • They may strike quickly, with little or no warning.
  • They may appear nearly transparent until dust and debris are picked up or a cloud forms in the funnel.
  • The average tornado moves Southwest to Northeast, but tornadoes have been known to move in any direction.
  • The average forward speed of a tornado is 30 mph, but may vary from stationary to 70 mph.
  • Tornadoes can accompany tropical storms and hurricanes as they move onto land.
  • Waterspouts are tornadoes that form over water.
  • Tornadoes are most frequently reported east of the Rocky Mountains during spring and summer months.
  • Peak tornado season in the southern states is March through May; in the northern states, it is late spring through early summer.
  • Tornadoes are most likely to occur between 3 pm and 9 pm, but can occur at any time.
Know the Terms

Familiarize yourself with these terms to help identify a tornado hazard:

Tornado Watch - Tornadoes are possible. Remain alert for approaching storms. Watch the sky and stay tuned to NOAA Weather Radio, commercial radio or television for information.

Tornado Warning - A tornado has been sighted or indicated by weather radar. Take shelter immediately.

During a Tornado

If you are under a tornado warning, seek shelter immediately!  Most injuries associated with high winds are from flying debris, so remember to protect your head.

If you are in: Then:
A structure (e.g. residence, small building, school, nursing home, hospital, factory, shopping center, high-rise building)
  • Go to a pre-designated shelter area such as a safe room, basement, storm cellar, or the lowest building level. If there is no basement, go to the center of an interior room on the lowest level (closet, interior hallway) away from corners, windows, doors, and outside walls. Put as many walls as possible between you and the outside. Get under a sturdy table and use your arms to protect your head and neck.
  • In a high-rise building, go to a small interior room or hallway on the lowest floor possible.
  • Put on sturdy shoes.
  • Do not open windows.
A trailer or mobile home
  • Get out immediately and go to the lowest floor of a sturdy, nearby building or a storm shelter. Mobile homes, even if tied down, offer little protection from tornadoes.
The outside with no shelter
  • Immediately get into a vehicle, buckle your seat belt and try to drive to the closest sturdy shelter.
  • If your vehicle is hit by flying debris while you are driving, pull over and park.
  • Stay in the car with the seat belt on. Put your head down below the windows; cover your head with your hands and a blanket, coat or other cushion if possible.
  • If you can safely get noticeably lower than the level of the roadway, leave your car and lie in that area, covering your head with your hands
  • Do not get under an overpass or bridge. You are safer in a low, flat location.
  • Never try to outrun a tornado in urban or congested areas in a car or truck. Instead, leave the vehicle immediately for safe shelter.
  • Watch out for flying debris. Flying debris from tornadoes causes most fatalities and injuries.

 

After a Tornado

Injury may result from the direct impact of a tornado or it may occur afterward when people walk among debris and enter damaged buildings. A study of injuries after a tornado in Marion, Illinois, showed that 50 percent of the tornado-related injuries were suffered during rescue attempts, cleanup and other post-tornado activities. Nearly a third of the injuries resulted from stepping on nails. Because tornadoes often damage power lines, gas lines or electrical systems, there is a risk of fire, electrocution or an explosion. Protecting yourself and your family requires promptly treating any injuries suffered during the storm and using extreme care to avoid further hazards.

Injuries

Check for injuries. Do not attempt to move seriously injured people unless they are in immediate danger of further injury. Get medical assistance immediately. If someone has stopped breathing, begin CPR if you are trained to do so. Stop a bleeding injury by applying direct pressure to the wound. Have any puncture wound evaluated by a physician. If you are trapped, try to attract attention to your location.

General Safety Precautions

Here are some safety precautions that could help you avoid injury after a tornado:

  • Continue to monitor your battery-powered radio or television for emergency information.
  • Be careful when entering any structure that has been damaged.
  • Wear sturdy shoes or boots, long sleeves and gloves when handling or walking on or near debris.
  • Be aware of hazards from exposed nails and broken glass.
  • Do not touch downed power lines or objects in contact with downed lines. Report electrical hazards to the police and the utility company.
  • Use battery-powered lanterns, if possible, rather than candles to light homes without electrical power. If you use candles, make sure they are in safe holders away from curtains, paper, wood or other flammable items. Never leave a candle burning when you are out of the room.
  • Never use generators, pressure washers, grills, camp stoves or other gasoline, propane, natural gas or charcoal-burning devices inside your home, basement, garage or camper - or even outside near an open window, door or vent. Carbon monoxide (CO) - an odorless, colorless gas that can cause sudden illness and death if you breathe it - from these sources can build up in your home, garage or camper and poison the people and animals inside. Seek prompt medical attention if you suspect CO poisoning and are feeling dizzy, light-headed or nauseated.
  • Hang up displaced telephone receivers that may have been knocked off by the tornado, but stay off the telephone, except to report an emergency.
  • Cooperate fully with public safety officials.
  • Respond to requests for volunteer assistance by police, fire fighters, emergency management and relief organizations, but do not go into damaged areas unless assistance has been requested. Your presence could hamper relief efforts and you could endanger yourself.

Inspecting the Damage

  • After a tornado, be aware of possible structural, electrical or gas-leak hazards in your home. Contact your local city or county building inspectors for information on structural safety codes and standards. They may also offer suggestions on finding a qualified contractor to do work for you.
  • In general, if you suspect any damage to your home, shut off electrical power, natural gas and propane tanks to avoid fire, electrocution or explosions.
  • If it is dark when you are inspecting your home, use a flashlight rather than a candle or torch to avoid the risk of fire or explosion in a damaged home.
  • If you see frayed wiring or sparks, or if there is an odor of something burning, you should immediately shut off the electrical system at the main circuit breaker if you have not done so already.
  • If you smell gas or suspect a leak, turn off the main gas valve, open all windows and leave the house immediately. Notify the gas company, the police or fire departments, or State Fire Marshal's office and do not turn on the lights, light matches, smoke or do anything that could cause a spark. Do not return to your house until you are told it is safe to do so.

Safety During Clean Up

  • Wear sturdy shoes or boots, long sleeves and gloves.
  • Learn proper safety procedures and operating instructions before operating any gas-powered or electric-powered saws or tools.
  • Clean up spilled medicines, drugs, flammable liquids and other potentially hazardous materials.

A tornado ravaged home surrounded by debris.FEMA Publications

If you require more information about any of these topics, the following resources may be helpful.

Related Websites

Find additional information on how to plan and prepare for a tornado and learn about available resources by visiting the following websites:

Listen to Local Officials

Learn about the emergency plans that have been established in your area by your state and local government. In any emergency, always listen to the instructions given by local emergency management officials.

Constructing a safe roomBuild a Safe Room

Extreme windstorms in many parts of the country pose a serious threat to buildings and their occupants. Your residence may be built "to code" but that does not mean it can withstand winds from extreme events such as tornadoes and major hurricanes. The purpose of a safe room or a wind shelter is to provide a space where you and your family can seek refuge that provides a high level of protection. You can build a safe room in one of several places in your home.

  • Your basement
  • Atop a concrete slab-on-grade foundation or garage floor.
  • An interior room on the first floor.

Safe rooms built below ground level provide the greatest protection, but a safe room built in a first-floor interior room also can provide the necessary protection. Below-ground safe rooms must be designed to avoid accumulating water during the heavy rains that often accompany severe windstorms.

To protect its occupants, a safe room must be built to withstand high winds and flying debris, even if the rest of the residence is severely damaged or destroyed. Consider the following when building a safe room:

  • The safe room must be adequately anchored to resist overturning and uplift.
  • The walls, ceiling and door of the shelter must withstand wind pressure and resist penetration by windborne objects and falling debris.
  • The connections between all parts of the safe room must be strong enough to resist the wind.
  • Sections of either interior or exterior residence walls that are used as walls of the safe room must be separated from the structure of the residence so that damage to the residence will not cause damage to the safe room.

Additional information about Safe Rooms available from FEMA: