Tornado

TORNADO

THE DEVIL

STORMA Short Research made by Shriya

Mohanty

What is Tornado?

Here is a simple definition of tornado. A tornado is a rotating column of air that is in contact with both the surface of the earth and cumulonious cloud. It is a low pressure circulation.

Cumulonious

cloud:- It is storm

cloud. To make it

more broad, it is

cloud associated

with thunderstorms

and atmospheric

instability.

Cause of Tornado

Factors causing a Tornado are :

(1) Instability in weather: It refers to unusually warm

and humid conditions in the lower atmosphere, and

possibly cooler than usual conditions in the upper

atmosphere.

(2) Wind Shear: It refers to the wind direction

changing, and the wind speed increasing, with

height.

The intense spinning of a tornado is partly the

result of the updrafts (upward drought of air) and

downdrafts (downward draught of air) in the

thunderstorm interacting with the wind shear,

resulting in a tilting of the wind shear to form an

upright tornado vortex. How the column of air

begins to rotate is not completely understood by

scientists.

The Information…

Normal Tornado:-

Wind Speed: less than 177km/hr

250 ft across the land

Travels few kilometers

Extreme Tornado:-

Wind Speed: more than 300 km/hr

Height:

Travels up to 100 km

Tornadoes are classified using the Enhanced Fujita Scale. Most

tornadoes (~88%) are considered weak (EF0 or EF1) and about

95% of all U.S. tornadoes are below EF3 intensity.

Disaster caused by Tornado:

Tornados can cause rapid destruction of homes and property, as well as injury and death to humans and animals.

As nicknamed the devil storm, it is responsible for the loss of many lives.

In the United States, on average, 1000

tornadoes are reported nationwide each year,

resulting in 70 deaths and over 1,500 injuries.

They occur most frequently east of the Rocky

Mountains during the spring and summer

months. Tornado Alley is a nickname given to an

area in the southern plains of the central U.S.

that consistently experiences a high frequency

of tornadoes each year.

Precautions:

Gather information.

Know the warning signals of your area.

Obtain insurance for your family and home.

Choose a post hazard meeting place for your family, neighbors.

Make a family communication plan.

Share this information with your family, neighbors.

In a public building such as a store or office, go to a 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 such as a bathroom or closet on the lowest level away from corners, windows, doors and outside walls.

At home, go to a basement or the most interior room on the first floor.

If caught in the open, lie flat in a nearby ditch or depression and cover your head with your hands to protect yourself from flying debris. Flying debris from tornadoes causes most fatalities and injuries.

Be alert to hazards created by tornado damage such gas leaks, broken glass and exposed electrical wires. Check for injuries, but don’t try to move someone who is seriously injured unless they are in immediate danger of death or further injury.

Read the complete at:

http://www.mnn.com/family/protection-

safety/stories/safety-precautions-for-

tornadoes

Disastrous

Tornadoes of the

World…

The Great Tri-State Tornado of Wednesday, March 18, 1925, is the deadliest tornado in U.S. history, affecting the states of Missourie, Illinois and Indiana. It was a F5 tornado. 1000 people were killed and 3000 were hurt.

The Tri-State Tornado

he Daulatpur–Saturia, Bangladesh tornado was an extremely destructive tornado that occurred in the Manikganj District, Bangladesh on April 26, 1989. It was the costliest and deadliest tornado in Bangladesh's history. There is great uncertainty about the death toll, but estimates indicate that it killed around 1,300 people, which would make it the deadliest tornado in the world history.

Daulatpur-Saturia Tornado, Bangladesh

The 1896 St. Louis – East St. Louis tornado is a historic tornado event that occurred on Wednesday, May 27, 1896, as part of a major tornado outbreak across the United States . One of the deadliest and most destructive tornadoes in U.S. history, this very large, long-track, and violent tornado was the most notable of an outbreak which produced other large, long-track, violent, killer tornadoes. It caused over $10,000,000 in damage.

East St. Louis Tornado

The 1936 Tupelo–Gainesville tornado outbreak was an outbreak of at least 12 tornadoes that struck the Southeastern United States from April 5–6, 1936. Approximately 454 people were killed by these tornadoes—419 by two tornadoes alone. This outbreak is the second deadliest ever recorded in US history

1936 Tupelo–Gainesville tornado

outbreak

The 2013 Moore tornado was an F5 tornado that struck Moore, Oklahoma and adjacent areas on the afternoon of May 20, 2013; with peak winds estimated at 210 mph (340 km/h), killing 24 people and injuring 377 others.

Oklahoma Tornado

I hope everyone takes necessary precautions during tornado or any other natural disaster so that they may stay safe.

THANK YOU !

THE END.