TORNADO
SAFETY
When a tornado
approaches, you have only a brief amount of time to make life-or-death
decisions. Advance planning and quick response are the keys to surviving
a tornado.
Purchase
a NOAA Weather Alert radio with an alert feature.
When tuned to the proper frequency, these weather radios remain silent
until a weather emergency occurs. Once they pick up the alarm tone, they
will begin broadcasting emergency weather information so that citizens
can protect themselves and their property. Some models of the NOAA weather
radio incorporate the Specific Area Message Encoder technology, allowing
users to target only those warnings that affect their immediate geographic
area.
Conduct
tornado drills with your family each year.
Designate an area in the home to serve as your safe area, and practice
having all family members assemble there in response to a mock tornado
warning. Your safe room should be a small interior room with stout walls,
such as a bathroom or closet, on the ground floor away from windows.
Develop
an emergency communications plan
in case family members are separated from one another when a tornado warning
goes into effect. Designate an adult (even a friend or relative who lives
out of the area) to serve as the family coordinator. Instruct everyone
in the family to contact this coordinator in a weather emergency for instructions
on what to do during the storm and where to reassemble after the emergency
has passed.
Know
the difference between a Tornado Watch and a Tornado Warning
Tornado
Watch:
Issued by the National Weather Service when tornadoes are possible in
your area. You should remain alert for approaching storms. Remind family
members of where the safe areas are within your home, and carefully monitor
radio or television reports for further developments.
Tornado
Warning:
Indicates that a tornado has been sighted in your area, or is indicated
on weather radar. You should proceed to safe shelter immediately.
When
a tornado warning goes in effect, put your safety plans in action.
AT
HOME: Have all family members proceed
to your safe area immediately. If you have designated a bathroom as your
safe area, get into the bathtub and cover yourself with a couch cushion.
This will provide you with protection on all sides. If there are no downstairs
bathrooms, and closets are inaccessible, a hallway may be your next best
area of refuge. As a last resort, tip over a heavy piece of furniture,
such as a couch or heavy chair, move it to the center of the room and
take cover underneath.
IN
A MOBILE HOME: Mobile homes offer poor
resistance to tornadic winds; hurricane straps or other tie-downs will
not protect a mobile home from the wind gusts associated with tornadoes.
You should plan on leaving your mobile home to seek shelter elsewhere.
Most mobile home communities have a recreational building or laundry room
which could offer safe haven. As a last resort, seek refuge in a ditch
or culvert or other low lying area of ground.
IN
YOUR AUTOMOBILE: Motor vehicles are easily
overturned by tornado winds. Leave your vehicle and seek shelter in a
sturdy building. As a last resort, seek shelter in a ditch or culvert.
Do not try to outrun or outmaneuver a tornado! Use the time to seek appropriate
shelter outside your vehicle.
OFFICE
BUILDINGS, HOTELS, SHOPPING CENTERS:
Take shelter in an interior hallway on a lower floor. A closet, bathroom
or other small room with short, stout walls will give some protection
from collapse and flying debris. Otherwise, get under heavy furniture
and stay away from windows. Many tornado deaths have occurred in large
buildings due to the collapse of a roof or wide span wall. A corner area,
away from a window, is safer than the middle of a wide span wall.
OUT
IN OPEN COUNTRY: When severe weather
approaches, seek inside shelter immediately. The chances of encountering
falling trees, downed power lines and lightning is far greater than encountering
a tornado itself. If a tornado approaches, lie flat in the nearest depression,
such as a culvert or ditch, and cover your head with your arms.
IN
SCHOOLS: All public schools have reliable
ways to monitor tornado watches and warnings, and each school has a designated
emergency plan that will lead pupils and faculty to designated safe areas.
Teachers should lead students out of gyms, auditoriums and portable classrooms
to interior rooms and hallways on ground level floors. Students should
stay away from glass, both in windows and doors. They should crouch down
and seek shelter under a classroom desk, if possible. Otherwise, they
should make themselves as small as possible, being sure to cover the head.
THEATERS,
WAREHOUSES, AUDITORIUMS: Move quickly
to a small interior room such as a rest room or closet. Otherwise, evacuate
these buildings and seek shelter in nearby sturdy buildings, if time permits.
BE
ALERT TO CHANGING WEATHER CONDITIONS
HAVE
AN EMERGENCY WEATHER PLAN IN PLACE
REHEARSE
YOUR CONTINGENCY PLANS PERIODICALLY
KNOW
WHERE TO GO WHEN A TORNADO THREATENS.
What
is a TORNADO?
A tornado is
a violent windstorm characterized by a twisting, funnel-shaped cloud.
It is spawned by a thunderstorm or as a result of severe weather associated
with hurricanes. A funnel cloud is formed as cool air overrides a layer
of warm air, forcing the warm air to rise rapidly. The damage from a tornado
results from high wind velocity and wind blown debris.
In a 28 year
period between 1959 - 1997, Pinellas County has experienced 99 tornado
incidents, surpassed only by Polk County (107 tornadoes) and Hillsborough
County (109).
FUJITA
TORNADO SCALE
| Category |
Sustained
Winds |
Damage |
| F-0 |
40-72mph |
Chimney
damage, tree branches broken |
| F-1 |
73-112mph |
Mobile
homes pushed off their foundations or overturned |
| F-2 |
113-157mph |
Considerable
damage. Mobile homes demolished. Trees uprooted |
| F-3 |
158-205mph |
Roofs
and walls torn down. Trains overturned. Cars thrown. |
| F-4 |
207-260mph |
Well
constructed walls leveled |
| F-5 |
261-318mph |
Homes
lifted off foundations and carried considerable distances. Autos
thrown as far as 100 meters. |
|
|
Pinellas
County Department of Emergency
Management
400 South Fort Harrison Ave.
Clearwater, FL 33756
Phone: (727) 464-3800
Fax: (727) 464-4024
TDD: (727) 464-4431
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Pinellas
County Home Page
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