What's the Best Strategies for
Surviving Tornado Disasters?
So What's is a Tornado? Here's One Over Texas!
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. Just about any place a tornado touches down you have a disaster of some kind.
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.
Tornado intensities are classified on the Fujita-Pearson Tornado Intensity Scale with ratings between F0 (weakest) to F5 (strongest). Below is a table of classifications:
Will Tornados be a Reality for Your Neighborhood?
Every state is at some risk from this hazard. But, other states constantly have to deal with this menace especially the Plains States. Contact your
local emergency management office, local National Weather Service office, or American Red Cross chapter for more information on surviving tornado disasters.
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 p.m. and 9 p.m., but can occur at any time.
What Happens When a Tornado Touches Down?
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.
The following are facts 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. They can even occur in the dark of night
although more rare.
The average tornado moves Southwest to Northeast, but tornadoes have been known to move in any direction.
The average forward ground 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 like the picture below.
How to Survive Tornado Disasters by Pre-Planning and Preparation
Develop a Family Tornado Disaster Plan.
Tornado–specific planning should include the following:
Pick a safe place in your home where family members could gather during a tornado.
The safest place to be is underground, or as low to the ground as possible, and away from all windows. If you have a basement, make it your safe place.
If you do not have a basement, consider an interior hallway or room on the lowest floor. Putting as many walls as you can between you and the outside
will provide additional protection. Less than 2 percent of all tornadoes are powerful enough to completely destroy a sturdy building. Make sure there
are no windows or glass doors in your safe place and keep this place uncluttered.
Consider having your tornado safe place reinforced.
Additional reinforcement will add more protection from the damaging effects of tornado winds. Get more information from FEMA about building a tornado
If you are in a high-rise building, pick a place in a hallway in the center of the building.
You may not have enough time to go to the lowest floor. Center hallways are often structurally the most reinforced part of a building.
If you live in a mobile home, choose a safe place in a nearby sturdy building.
A sturdy building provides greater protection. If your mobile home park has a designated shelter, make it your safe place. Mobile homes are much more
vulnerable to strong winds than site-built structures. Prior to 1994, most manufactured homes were not designed to withstand even moderate winds.
Discuss how you would be warned of an approaching tornado.
Different communities have different ways of providing warnings. Many communities have sirens intended for outdoor warning purposes. Use a NOAA Weather
Radio with a tone-alert feature to keep you aware of watches and warnings while you are indoors. Learn about your community’s warning system. Make sure
all family members know the name of the county or parish where you live or are traveling, because tornado watches and warnings are issued for a county
or parish by name.
Learn about your community’s warning system.
Different communities have different ways of providing warnings. Many communities have sirens intended for outdoor warning purposes. Use a NOAA Weather
Radio with a tone-alert feature to keep you aware of watches and warnings while you are indoors.
Conduct periodic tornado drills, so everyone remembers what to do when a tornado is approaching.
Practice having everyone in the family going to your designated area in response to a tornado threat. Practicing your plan makes the appropriate
response more of a reaction, requiring less thinking time during an actual emergency situation.
Check with your work and your children’s schools and day care centers to learn tornado emergency plans.
Every building has different safe places. It is important to know where they are and how to get there in an emergency.
Discuss tornadoes with your family.
Everyone should know what to do in case all family members are not together. Discussing disaster ahead of time helps reduce fear and lets everyone know
how to respond during a tornado.
What to Tell Children
Find safe places in your home and classroom.
Make sure these places are away from windows and tall furniture that could tip over. In
your safe place, get under something sturdy, or use a large, hard-cover book to help protect your head and neck from flying or falling objects.
Locate safe places outside in case you are not able to go inside. Frequently, children in schools are told to move to the inner hallways away from windows. Children need to know that a tornado safe place is not the same as a fire meeting place.
Wherever you are, if you hear or see a tornado coming, take cover right away.
Tornadoes can move quickly, blowing objects at very high speeds, even if they are a distance away. Protect yourself from flying debris by taking cover
If you’re in a house or apartment building and a tornado threatens, go to the lowest level — a basement or storm cellar if possible.
Once on the lowest level, go to the middle of the building away from windows, into a bathroom or closet if possible. The safest place to be is under
the ground, or as low to the ground as possible, and away from all windows.
If you have a basement, make it your safe place. If you do not have a basement, consider an interior hallway or room on the lowest floor. Putting as
many walls as you can between you and the outside will provide additional protection. Make sure there are no windows or glass doors in your safe place
and keep this place uncluttered.
Get under something sturdy, such as a heavy table, hold on and stay there until the danger has passed.
Being under something heavy will help protect you from falling objects. If tornado wind enters the room and the object moves, holding on with one hand will help you move with it, keeping you protected.
Use your other arm and hand to protect your head and neck from falling or flying objects.
Your head and neck are more easily injured than other parts of your body. Protect them as much as you can.
If you’re outside in a car or in a mobile home, go immediately to the basement of a nearby sturdy building.
Sturdy buildings are the safest place to be. Tornado winds can blow large objects, including
cars, hundreds of feet away. Tornadoes can change direction quickly and can lift up a car or truck and toss it through the air. Never try to out-drive
a tornado. Mobile homes are particularly vulnerable. A mobile home can overturn very easily even if precautions have been taken to tie down the unit.
If there is no building nearby, lie flat in a low spot. Use your arms and hands to protect your head.
Tornadoes cause a lot of debris to be blown at very high speeds, and you can be hurt by this
debris if it hits you. Dangerous flying debris can be blown under highway overpasses and bridges, or weaker overpasses and bridges could be destroyed.
You will be safer lying flat in a low-lying area where wind and debris will blow above you. Tornadoes come from severe thunderstorms, which can produce
a lot of rain. If you see quickly rising water or flood water coming towards you, move to another spot.
How to Protect Your Property
Make a list of items to bring inside in the event of a storm.
Having a list will help you remember things that may be broken or blown away in strong winds.
• Keep trees and shrubbery trimmed.
Make trees more wind resistant by removing diseased or damaged limbs, then strategically remove branches so that wind can blow through. Strong winds
frequently break weak limbs and hurl them at great speed, causing damage or injury when they hit. Debris collection services may not be operating just
before a storm, so it is best to do this well in advance of approaching storms.
Remove any debris or loose items in your yard.
Branches and firewood may become missiles in strong winds.
Consider installing permanent shutters to cover windows.
Shutters can be closed quickly and provide the safest protection for windows.
Strengthen garage doors.
Garage doors are often damaged or destroyed by flying debris, allowing strong winds to enter. As winds apply pressure to the walls, the roof can be
lifted off, and the rest of the house can be easily follow.
General Awareness, Observation, and Factual Tips
While tornadoes can be highly destructive and are potentially deadly, timely precautions can save lives and reduce property damage. During active
weather, stay alert of the forecast by listening to radio or television or by using a NOAA Weather Radio. Contact your local National Weather Service
(NWS) office, emergency management agency, or American Red Cross chapter for more information about your risk from tornadoes.
• A National Weather Service WATCH is a message indicating that conditions favor the occurrence of a certain type of hazardous weather.
For example, a severe thunderstorm watch means that a severe thunderstorm is expected in the next six hours or so within an area approximately 120 to
150 miles wide and 300 to 400 miles long (36,000 to 60,000 square miles). The NWS Storm Prediction Center issues such watches. Local NWS forecast
offices issue other watches (flash flood, winter weather, etc.) 12 to 36 hours in advance of a possible hazardous weather or flooding event. Each local
forecast office usually covers a state or a portion of a state.
• An NWS WARNING indicates that a hazardous event is occurring or is imminent in about 30 minutes to an hour. Local NWS forecast offices
issue warnings on a county-by-county basis.
Tornadoes may appear nearly transparent until dust and debris are picked up.
Stay alert for high winds even if you do not “see” a tornado. During the day, watch for clouds where portions of them are attempting to move towards
Tornadoes often occur when it is not raining.
In fact, in the Great Plains and other semiarid regions, that scenario is the rule rather than the exception. Tornadoes are associated with a powerful
updraft, so rain does not fall in or next to a tornado. Very large hail, however, does fall in the immediate area of the tornado. In humid
environments, rain often tends to wrap around the tornado, being pulled from the main precipitation area around the outside of the rotating updraft.
The rain could make it difficult to see the tornado.
Waterspouts are weak tornadoes that form over warm water and are most common along the Gulf Coast and southeastern states.
In the western United States, waterspouts occur with cold late fall or late winter storms, during a time when you least expect tornado development.
Waterspouts, which are tornadoes over a body of water, occasionally move inland becoming tornadoes and causing damage and injuries.
Damage happens when wind gets inside a home through a broken window, door, or damaged roof.
Keep windows closed. Houses do not explode due to air pressure differences. Stay away from windows during severe storms. Flying debris could shatter
the glass and cause injury.
It used to be advised to go to the southwest corner for safety; however, the southwest corner of a house is no safer than any other corner.
Historical information has shown that any corner on the lowest level away from windows is as safe as any other corner. If tornado winds enter the room,
debris has a tendency to collect in corners. When selecting a tornado “safe place,” look for a place on the lowest level and away from windows,
preferably in a small room (closet or bathroom) in the center of the house. Closer walls will help provide more support to the roof, and each wall
between you and the outside will provide further protection.
Folklore passed down through the generations used to advise opening windows in case of a tornado because air pressure differences would cause a
house to explode. This information is not true.
Air pressure differences in a tornado are not strong enough to cause a house to explode; houses are damaged by the violent winds associated with a
tornado and from the debris blown at high velocities by tornado winds.
Folklore also used to advise that if you are driving and a tornado is suspected or sighted, you should turn and drive at right angles to the storm.
This advice is not recommended because tornadoes do not necessarily travel in straight lines; you cannot always tell the direction the storm is coming
from; the road you turn onto may curve and head into the storm, rather than away from it; and there may be more than one tornado associated with a
strong storm system, but you may not see it because visibility is diminished by heavy rain and wind-blown debris. The safest thing to do is go to a
nearby sturdy building and go inside to an area on the lowest level, without windows. If a sturdy building is not available, then get out of the
vehicle and lay down in a low spot on the ground not subject to flooding, protecting the head and neck.
What to Do During Tornado Weather Periods
Use a NOAA Weather Radio with a tone-alert feature to keep you informed of watches and warnings issued in your area.
The tone-alert feature will automatically alert you when a watch or warning is issued.
If planning a trip or extended period of time outdoors, listen to the latest forecasts and take necessary action if threatening weather is
Knowing what weather could happen helps you be prepared to respond if necessary. Having a raincoat, umbrella, and disaster supplies kit available will make it easier to deal with severe weather if it occurs.
Watch For Tornado Danger Signs.
Tornadoes may happen so quickly warnings can’t be issued long in advance. Pay attention to weather clues around you that may warn of imminent danger.
- Dark, often greenish sky. Sometimes one or more of the clouds turns greenish (a phenomenon caused by hail) indicating a tornado may develop.
- Wall cloud, an isolated lowering of the base of a thunderstorm. The wall cloud is particularly suspect if it is rotating.
- Large hail. Tornadoes are spawned from powerful thunderstorms and the most powerful thunderstorms produce large hail. Tornadoes frequently emerge from near the hail-producing portion of the storm.
- Cloud of debris. An approaching cloud of debris can mark the location of a tornado even if a funnel is not visible.
- Funnel cloud. A visible rotating extension of the cloud base is a sign that a tornado may develop.
- Roaring noise. The high winds of a tornado can cause a roar that is often compared with the sound of a freight train.
- Tornadoes may occur near the trailing edge of a thunderstorm and be quite visible. It is not uncommon to see clear, sunlit skies behind a tornado. They may also be embedded in rain and not visible at all.
If you live in a single-family home in a tornado-prone area, find out how to reinforce an interior room on the lowest level of your home (such as the
basement, storm cellar, bathroom or closet) to use as a shelter.
Plans for reinforcing an interior room to provide better tornado protection in your home are available from your local emergency management office or
from FEMA’s website at Federal Emergency Management Agency (FEMA): http://www.fema.gov/
Proactive Steps to Take After Surviving a Tornado Disaster
Two basic levels of alertness have to do with tornado watches vs. tornado warnings. So what you do depends upon the closeness of a tornado.
Continue listening to local radio or television stations or a NOAA Weather Radio for updated information and instructions. Access may be limited to some parts of the community, or roads may be blocked.
Help a neighbor who may require special assistance — infants, elderly people and people with disabilities. Elderly people and people with disabilities may require additional assistance. People who care for them or who have large families may need additional assistance in emergency situations.
Help injured or trapped persons. Give first aid where appropriate. Do not move seriously injured persons unless they are in immediate danger of further injury. Call for help.
Watch out for fallen power lines or broken gas lines and report them to the utility Company immediately. Report potential hazards will get the utilities turned off as quickly as possible, preventing further hazard and injury.
Avoid disaster areas. Your presence might hamper rescue and other emergency operations, and put you at further risk from the residual effects of tornadoes.
Stay out of damaged buildings. Tornadoes can cause great damage, creating further hazards. If you are away from home, return only when authorities say it is safe.
When entering damaged buildings, use extreme caution. Moving through debris presents further hazards. Carefully watch every step you take.
Wear sturdy shoes. The most common injury following a disaster is cut feet.
Use battery-powered lanterns or flashlights when examining buildings. Battery-powered lighting is the safest and easiest, preventing fire hazard for the user, occupants, and building.
Examine walls, floors, doors, staircases, and windows to make sure that the building is not in danger of collapsing.
Look for fire hazards. There may be broken or leaking gas lines, or damage to electrical systems. Clean up spilled medicines, bleaches, gasoline, or other flammable liquids
immediately. Fire is the most frequent hazard following other disasters.
Check for gas leaks. If you smell gas or hear a blowing or hissing noise, open a window and quickly leave the building. Turn off the gas using 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 burning 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 first for advice. Electrical equipment should be checked and
dried before being returned to service.
Watch for loose plaster, drywall, and ceilings that could fall.
Take pictures of the damage, both of the building and its contents, for insurance claims.
Use the telephone only for emergency calls.
Telephone lines are frequently overwhelmed in disaster situations. They need to be clear for emergency calls to get through.
Additional Resources for Surviving Tornado Disasters
Know Your Risk And Have A Safe Place To Go… with enought Time to Get There.
When extreme weather threatens, individuals and families need advance warning and protection from the dangerous forces of extreme winds. Individuals
and communities in tornado and hurricane areas need structurally sound safe rooms and early alert systems.
Residential Safe Rooms
Building a Safe Room in Your Home
Residential Funding Opportunities and Initiatives
Examples and Case Studies
Public and Community Safe Rooms
Community Funding Opportunities and Initiatives
Examples and Case Studies
Know Your Risk
Map of the contiguous United States
Annual cycles of severe weather probability
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---
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
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 Websites for Surviving Tornado Disasters
FEMA strongly encourages homeowners and communities to build safe rooms but cannot endorse or approve specific manufacturers or producers.
Other Safe Rooms
FEMA has produced specific designs for tornado and hurricane safe rooms that are set forth in the
FEMA publication number 320, Taking Shelter From the Storm: Building a Safe Room For Your Home or Small Business. FEMA has also produced guidance for larger community safe rooms that is available in
FEMA 361, Design and Construction Guidance for Community Safe Rooms.
Assemble a Basic Disaster Supplies Kit
You may need to survive on your own after a disaster. This means having your own food, water, and other supplies in sufficient quantity to last for at
least three days. Local officials and relief workers will be on the scene after a disaster, but they cannot reach everyone immediately. You could get
help in hours, or it might take days.
Basic services such as electricity, gas, water, sewage treatment, and telephones may be cut off for days, or even a week or longer. Or, you may have to
evacuate at a moment’s notice and take essentials with you. You probably will not have the opportunity to shop or search for the supplies you need.
A disaster supplies kit is a collection of basic items that members of a household may need in the event of a disaster.
Please refer to the Basic Disaster Supplies Kit posted topic on this website.
Historical Notes for Surviving Tornado Disasters:
Land-falling tropical storms and hurricanes also generate tornadoes. Such tornadoes are most common to the right and ahead of the storm path or the
storm center as it comes ashore. In 1967, Hurricane Beulah produced 148 tornadoes as it made landfall in south Texas.
The content of this guide is from the public domain.
American Red Cross: http://www.redcross.org/
Federal Emergency Management Agency (FEMA): http://www.fema.gov/
Produced by the: National Disaster Education Coalition consisting of:
American Red Cross, FEMA, IAEM, IBHS, NFPA, NWS, USDA/CSREES, and USGS.
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