Terrible Tornadoes! The Most Violent Atmospheric Storms!
- Tornadoes are whirling winds that form when a column of cold air sinks down from a thundercloud, while warm air is rising around it.
- Larger tornadoes' bases can get up to 300 ft long, but only last for about an hour.
- “You need warm, moist air from the Gulf of Mexico and cool, dry air from Canada. When these two air masses meet, they create instability in the atmosphere.” Says http://weatherwizkids.com/weather-tornado.htm
- Tornadoes form in a low pressure system.
- Did you know that the US gets about 1,200 tornadoes each year?
- Tornadoes can spin up to 350 miles per hour.
Tragic Tornadoes That Have Happened in The Past
The Tornado Outbreak! (2011)
- This tornado started on April 27, 2011
- 327 people were killed in 24 hours.
- It went through the South (Alabama, Georgia, Tennessee, Mississippi) and wrecked havoc.
- This tornado was spinning about 200 mph.
- No recorded data for the cost of damage caused by this storm.
Tri State Tornado (1925)
- Started on March 18, 1925
- Record for longest continuous track of 219 miles.
- Lasted for 3.5 hours which is a record.
- The winds speeds were up to 300 mph
- Traveling at 73 mph (average 62 mph)
- 695 killed, More than 2000 injured
- Went through Illinois, Missouri, Indiana
- No recorded data for cost of storm damage.
Easy Steps on How to Stay Safe During a Tornado
- Find a place without windows, a storm cellar, basement, closet
- Stay away from objects that can fly around and can easily hurt you
- If outside, go to a ditch or low lying area
- Cover head and neck with arms
Some things that other people have made so we stay safe during Tornadoes
- A "safe room." It is a place where you have the least amount of windows and not very many objects that can fly around.
- There are special news stations/radio stations to tell us warnings in our area for tornadoes.
Low Pressure System: A whirling mass of warm, moist air that generally brings stormy weather with strong winds. When viewed from above, winds spiral into a low-pressure center in a counterclockwise rotation in the Northern Hemisphere.
Llewellyn, Claire. Wild, Wet and Windy: The Weather--from Tornadoes to Lightning. Cambridge, MA: Candlewick, 1997. Print.