Tornado Safety by 7X3Yv6k4


									                            CAMP ATTERBURY JMTC
                                        Tornado Safety Slideshow

This is the oldest known photo of a tornado. It was taken on       Brought to you by the Camp Atterbury
August 28, 1884 near Howard, South Dakota. The name of the          Directorate of Emergency Services
photographer is not known.
What is

      I bought
        you a
A tornado is defined as a
violently rotating column of
air extending from a
thunderstorm to the ground,
the result of a clash between
two air masses of widely
different temperature. In an
average year, about 1,000
tornadoes are reported
across the United States,
resulting in 80 deaths and
over 1,500 injuries. The most
violent tornadoes are
capable of tremendous
destruction with wind speeds
of 250 mph or more. Damage
paths can be in excess of
one mile wide and 50 miles
Indiana has a yearly average of 23 reported tornadoes. Indiana tornadoes have occurred in every month
of the year. On June 2, 1990, 37 tornadoes ripped through Indiana, the most on any one day in state
history. Camp Atterbury lies in three south central counties: Johnson, Bartholomew and Brown, where
there have been no reported deaths attributed to tornadoes since 1950. This tornado was obviously in
                Environmental Clues
Look out for:

Dark, often greenish sky
Wall cloud (seen here)
Large hail
Loud roar; similar to a freight train
                        This 3 ½ minute video,
                        recorded in 1997 on the
                        Kansas Turnpike, illustrates
                        the great changes in intensity
                        that take place during the
                        span of time that a tornado is
                        on the ground. It is also a
                        terrific example of the sound
                        one would here when near a
                        tornado because the
                        photographer actually keeps
                        his mouth shut. (Watch at the
                        end for the wonderfully
                        helpful police officer scolding
                        the woman and children
click image for video
                        under the bridge)
As was seen in the previous video, flying debris is also a concern.
                                                   FUJITA SCALE
Wind Speed
Possible Damage

F0 40 - 72 mph Light damage: Tears branches from trees; rips
shallow-rooted trees from the ground; can damage sign-posts,
traffic signals and chimneys

F1 73 - 112 mph Moderate damage: Roofing materials and
vinyl siding can be displaced; mobile homes are highly
vulnerable and can easily be knocked from the foundation or
toppled; motorists can be sent careening off road and possibly
flipped over

F2 113 - 157 mph Considerable damage: Well established
trees are easily uprooted; mobile homes are dessimated; entire
roofs can be ripped off houses; train cars and trucking hauls
are knocked over; small objects become dangerous missiles

F3 158 - 206 mph Severe damage: Forests are destroyed as a
majority of trees are ripped from the ground; entire trains are
derailed and knocked over; walls and roofs are torn from

F4 207 - 260 mph Devastating damage: Houses and other
small structures can be razed entirely; automobiles are
propelled through the air.

F5 261 - 318 mph Incredible damage: Cars become projectiles
as they are hurled through the air; entire houses are completely
destroyed after being ripped from the foundation and sent
tumbling into the distance; steel-reinforced concrete structures
can be seriously damaged.
A Tornado Watch means that conditions are favorable for tornadic activity.
A Tornado Warning means that one has been spotted or computers have indicated rotation in the
*Secure potential flying debris
*Be sure that others are aware of
*Seek shelter immediately in a
windowless interior room
*If no shelter is available, cover
your head with your hands in a
ditch or ravine
*If you must make a phone call,
use a cell phone, landlines are a
lightning hazard
Note: Tornadoes generally travel
in a southwest to northeast

Do Not:
*Stay in your car and try to outrun
the tornado
*Get near any window
*Ignore tornado warnings and
continue to watch the wrestling
match in your mobile home
        If you spot a tornado while here on post, contact the JOC @ 812.526.1792, the MP Desk @ 812.526.1109 or
                                              Range Control @ 812.526.1351.


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