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Tornadoes are not uncommon on the prairies of Canada because they experience some of the same effects that have led to the high incidence of tornadoes in Tornado Alley to the south. Some even consider the southern portion of these plains to be part of Tornado Alley. In this region it is not uncommon to have collisions of warm, moist air from the Gulf of Mexico, cool air from northern Canada, and dry air from the Rockies. These collisions result in very strong thunderstorms, with the moist air acting as their "fuel." Additionally, the region often has a layer of stable air called a cap that suppresses storms. This behaves like the lid on a pressure cooker, allowing the atmosphere below it to become increasingly unstable until storms develop explosively. Finally, the region often sees strong vertical wind shear, or a variation of wind speed and direction with altitude. This tilts them in such a way that the updraft and downdraft portions becomes separated and don't interfere with one another, letting the already strong storm further strengthen and last longer. The wind shear also sets the storms rotating, turning them into supercells, the most powerful thunderstorms on earth. It is the rotation within these supercells that can develop into a tornado.
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Why do tornadoes occur in tornado alley?
Tornadoes occur there because warm moist air from the Gulf of Mexico meets cool dry air from the Rocky Mountains or Canada, this creates the thunderstorms that can spawn tornadoes.
Why do tornadoes occur at 3pm and 9pm?
Tornadoes do NOT only occur at 3pm or 9pm. Tornadoes can occur at any time of the day or night, but MOST tornadoes come in late afternoon or evening at the hottest times of the day.
Where do tornadoes never occur?
Tornadoes do not occur in polar regions, such as Antarctica, or in extreme desert areas such as the Atacama.
Can there be tornadoes in NY?
Yes. Tornadoes can occur anywhere in the US.
What climate are tornadoes least likely to occur in?
Tornadoes are least likely to occur in a polar climate.
How often do tornadoes occur in Canada?
Canada gets about 100 recorded tornadoes each year.
Are tornadoes in Canada weaker than those that occur in the US?
Yes, generally, they are, though that does not mean that Canada does not get violent tornadoes.
Where in the world can tornadoes occur?
tornadoes occur mainly on the eastern side of America.medium risk for tornadoes: Canada, New York, Florida, north Dakota & south, and some of Texashigh risk: Minnesota, Wisconsin, Oklahoma, Tennessee, Illinoishighest risk: kansas, Marylandand parts of Europe and west and east Australianot central Australia
Where tornadoes occur in the world?
tornadoes occur mainly on the eastern side of America.medium risk for tornadoes: Canada, New York, Florida, North Dakota & south, and some of Texashigh risk: Minnesota, Wisconsin, Oklahoma, Tennessee, Illinoishighest risk: kansas, Marylandand parts of Europe and west and east Australianot central Australia
When do tornadoes mainly happen?
If you mean time of day, tornadoes occur most often in the late afternoon. If you mean time of year, they usually occur in spring and early summer.
Why do tornadoes occur in tornado alley?
Tornadoes occur there because warm moist air from the Gulf of Mexico meets cool dry air from the Rocky Mountains or Canada, this creates the thunderstorms that can spawn tornadoes.
How many tornadoes happen each year in Canada?
On average Canada gets 80 to 100 tornadoes each year.
Where can tornadoes hit in North America?
Tornadoes can occur virtually anywhere in North American except, perhaps, the northernmost reaches of Canada and Alaska.
In what country do the largest number of tornadoes occur?
The United States leads the world in both number of tornadoes annually as well as tornadoes per square mile. Canada ranks second.
What part of Canada does convectional precipitation mainly occur?
interior plains
What Texas ecoregions are affected by tornadoes?
The entire state of Texas gets tornadoes. The greatest portion of these occur in the northern Part of the state, which would include most of the plains and prairies as well as the Western Cross Timbers and the northern Post Savannah Oak.
When do most tornadoes occur?
Most tornadoes occur in spring.
