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Tornadoes in the U.S. form mostly in the same way as they do in other parts of the world.
Tornadoes need thunderstorms to form, the stronger the better. Most tornadic thunderstorms in the U.S. form when warm, moist air from the Gulf of Mexico collides with cooler air form Canada and dry air from the Rockies. These thunderstorms then encounter wind shear (changes in the wind speed and direction with altitude) which starts them rotating. A final factor is a layer of stable air often called a cap. This cap holds back storm formation, allowing instability to build until finally some very powerful storms break through it. Tornadoes may also form in the outer bands of hurricanes, which produce wind shear when they hit land.
Tornado formation is similar in other regions, but the conditions are rarely as ideal as they are in the central U.S.
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How many states in America get tornadoes?
Every state has had at least a few weak tornadoes.
What is expected to happen in America by 2023?
By 2023, minorities will constitute the greatest number of children under 18.
What happen to slavery in America?
It was made illiagal after the american civil war by the North, The Union. Many Northeners were racist and thought the now freed slaves would go back to Africa even though they had been born in America and thought of themselves as Americans.
How did the Mayflower Compact change America?
Yes, "[the Mayflower Compact] caused many other things in America to happen." But that is an extremely vague answer. The Mayflower Compact inspired other Colonists to create a better set of laws. Before the Puritans created this Compact, the only settlers in the New World were businessmen who only wanted money.
What were the effects of the neutrality proclamation of 1793?
The Neutrality Proclamation of 1793 was proclaimed by George Washington during the month of May in the same year. This created a neutral status of America in any war that will happen between other countries.
Where tornadoes happen the most?
the United States of America
Do tornadoes only happen in North America?
No, tornadoes can occur in many parts of the world where there are the right atmospheric conditions. However, the frequency and intensity of tornadoes are highest in North America, particularly in the central United States.
In which of the seven continents do most powerful tornadoes take place?
The most powerful tornadoes usually happen in North America.
Where do tornadoes most happen at?
They happen around America and Texas (USA). Ohio and many places windy and rainy.
Do tornadoes only form in North America?
Yes, tornadoes can happen almost anywhere that there are thunderstorms.
What type of year do tornadoes happen?
Tornadoes happen every year.
Where can tornadoes happen?
Tornadoes can happen in any place that gets thunderstorms.
Where in America do tornadoes happen?
I know that it mostly happen in tornado alley so you can research tornado alley.
Why do tornadoes happen in Miami?
Tornadoes happen in Miami for the same reason they happen anywhere else. See the related question for how tornadoes form in general.
Why do tornadoes happen in Africa?
Tornadoes happen in Africa because of the mountains they have or because of the weather.
Why tornadoes don't happen in Ottawa?
Tornadoes can happen in Ottawa. Canada does get tornadoes, though not as often as the U.S. due to its cooler climate.
Where in the world can tornadoes can happen?
Tornadoes can happen anywhere in the world except cold areas like Antarctica and the north pole. Tornadoes are mostly common in United States.
