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is about tornadoes

Allison Sanitra

on 13 March 2013

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Transcript of Tornadoes

Question #1 They are measured by the Enhanced Fujita scale Tornadoes By: Allison Sanitra Answer #2 Question #2 How are tornadoes formed? How are tornadoes measured? Question #3 Answer #3 What is a brief history of tornadoes? Answer #4 Answer #5 Question #6 a. a. What regions of the country are more prone to tornadoes? Hey I'm Agent Jones
get ready for your top secret journey to the center of tornadoes Answer #6 a. Question #6 b. Based on Answer #6 a. , why are these areas more prone to tornadoes? Answer #6 b. Question #5 What safety precautions can you take during a tornado? Answer #1 Question #4 How do tornadoes compare to other destructive storms? !!! FUN FACTS !!! A Tornado can occur at any time, but most often between 3pm and 9pm.
Every tornado has its own color, sound and shape.
A strong tornado can pick up a house and move it down the block.
Small tornadoes sometimes form on the edge of bigger tornadoes
Some tornadoes have plucked feathers off of chickens Question #7 What is a tornado? They are formed when cold air and warm air mix. The cold air drops as the warm air rises eventually the warm air twists into a spiral and forms a funnel shaped cloud. Tornadoes usually form in a large thunderstorm called a supercell The tri-state tornado touched down in southeast Missouri and moved towards Illinois and Indiana on March 18th 1925. It destroyed more than 15,000 homes and killed nearly 700 people. It's path was 219 miles (352 km) long. It is the worst recorded tornado in American history. Tornadoes Hurricanes Earthquakes Usually form over large, tropical bodies of warm water
Average of about 10-15 a year
Occur usually in warm areas
Can last a couple of days Can form over mostly anywhere
Average of about 1,200 in just America a year
Occur where warm fronts and cold fronts meet (can be almost anywhere)
Usually last a couple of minutes Form when tectonic plates shift along large cracks in Earth’s crust called faults
Average of 25,594 a year
Occur around plate boundaries
Lasts about 10-30 seconds
Usually has after shocks later in the day Pick a place in your home that provides the best available shelter

If your house has a basement, find a place in that basement where you'll be safe from falling debris
put as many walls between you and the outside as possible

Buy a weather radio. Make sure everyone understands the difference between a tornado watch and a tornado warning
Stay away from windows Have a tornado "kit" ready at all times

A first aid kit and any essential medications
Some nonperishable food items (can opener if needed) and bottled water
A flash light and battery-powered radio (with batteries)
Spare shoes and clothing
A whistle or other loud noisemaker
Cell phone - be aware that cell service often is disrupted after a tornado

Make sure family knows the details of the plan Mostly areas in between the Rocky Mountains and Appalachian Mountains.
This area is nicknamed Tornado Alley.
A tornado can form almost any where but this area is the most common. Answer #7 In tornado alley warm, moist air from the gulf moves north while cold air from Canada moves south. These two types of air collide in the middle of tornado alley and create massive thunderstorms. As mentioned earlier these thunderstorms are called supercells and tornadoes are usually formed from them A tornado is a violently rotating funnel-shaped cloud touching down from a thunder storm all the way to the ground. In 1999 meteorologists realized that there were flaws in the original Fujita system. In 2006, the NWS (National Weather Service) revealed the Enhanced Fujita Scale Thank you for watching!!! Model of Answer #1
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