Tornadoes

Tornadoes can have devastating effects on the landscape, causing extensive damage to buildings, trees, and vegetation. They can uproot trees, strip away topsoil, and create new paths as they tear through the environment. Tornadoes may also result in the formation of debris fields and produce changes in the land's texture and appearance.

Antarctica is the only continent that does not experience tornadoes due to its extreme cold climate and lack of the necessary ingredients for tornado formation, such as warm, moist air colliding with cool, dry air.

States with lowest tornado incidences include Alaska, Hawaii, and Vermont. These states typically have cooler climates and are not located in the traditional tornado alley region of the United States.

Tornadoes occur more frequently in the Great Plains region compared to valleys. This is because the Great Plains experience more severe weather conditions like thunderstorms and have a favorable topography for tornado formation, such as flat terrain and colliding air masses. Valleys typically do not have the same conditions necessary for tornado formation.

On a large scale, yes. Geography affects climate, and climate determines how prone an area is to tornadoes. On a smaller scale, mountainous terrain can interfere with a storm's organization, making it harder for it to produce tornadoes. However, once a tornado forms it can pass over hills and mountains without being affected.

There are not 19 states in Tornado Alley, though there is some variation in how the maps are drawn. Tornado Alley includes much of Texas, Oklahoma, Kansas, Nebraska, South Dakota, Iowa, and smaller portions of Colorado and Missouri. Some maps also include Arkansas, North Dakota, and Illinois but that is stretching it a bit. Louisiana, Mississippi, and Alabama are sometimes listed, but these are actually part of Dixie Alley.

The United States of America in the Midwest states, such as Texas, Oklahoma, Iowa, and Kansas.

Tornadoes depend on a number of factors to form including instability (which involves warm, moist air developing or moving in under cool air), a system to trigger thunderstorms, and wind shear to give storms the rotation they need to produce tornadoes.

Due to the locations of mountains, plains, warm and cold ocean currents and semipermenant high and low pressure systems the necessary conditions are more common in some regions than others. Some areas may see a high incidence of tornadoes while others may be too cold, too dry, have too little wind shear, or too little temperature variation to see large numbers of tornadoes.

Yes, the 1999 Oklahoma tornado was part of Tornado Alley, a region in the central U.S. with a higher frequency of tornadoes due to its unique geographic and climatic conditions. Oklahoma is situated within the heart of Tornado Alley and experiences a significant number of tornadoes each year.

Sources tend to disagree, some say the United Kingdom while others say it is the Netherlands. While the U.S. as a whole doesn't qualify, it should be kept in mind that tornado distribution is not even throughout the country. Overall the places in the world with the most tornadoes per area unit are the U.S. states of Florida and Kansas.

Florida has a very war, moist climate due to its location surrounded by warm, subtropical water. When air from outside the tropics intrudes it can trigger thunderstorms fueled by the abundant warm, moist air. Given wind shear these storms can produce tornadoes. Hurricanes also occasionally produce tornadoes in Florida.

However, Florida is in a region hundreds of miles east of Tornado Alley and separate from it. Additionally, while the concentration of total tornadoes in Florida is comparable to that of Tornado Alley, it receives far fewer strong tornadoes.

The Gulf of Mexico provides warm, moist air that can fuel thunderstorms when it meets with cool, dry air from the north. This clash of air masses creates the ideal conditions for severe weather, including tornadoes, to develop in Tornado Alley. The warm, humid air from the Gulf acts as a source of energy for these storms to intensify and form tornadoes.

Hotspots for tornadoes in the United States include Tornado Alley, which covers parts of Texas, Oklahoma, Kansas, and Nebraska, as well as Dixie Alley in the southeastern US. Other regions prone to tornadoes include parts of the Midwest and Great Plains. Tornadoes can also occur in other parts of the world, but with less frequency than in the central US.

95% of all tornadoes in the US occur in an area known as Tornado Alley, which includes parts of Texas, Oklahoma, Kansas, and Nebraska. Additionally, tornadoes can also occur in other regions of the US, such as the Southeast and Midwest.

Two thirds of the worlds recorded tornadoes occur int he United States. However, the U.S. portion of tornadoes is likely highly exaggerated as many countries do not keep records on their tornadoes.

The Gulf of Mexico provides warm, moist air that is essentially the fuel of the thunderstorms that produce tornadoes. The Rocky Mountains generate dry air masses that, when they collide with the warm, moist air, can produce chains of violent thunderstorms.

Here's how tornado statistics for Georgia compares with the states of Tornado Alley. Next to each states name is the average annual number of tornadoes in the period 1981-2010, followed by the number of F2 and stronger tornadoes in parentheses ()

Georgia: 26 per year (5 F2+)

Texas: 150 per year (16 F2+)

Oklahoma: 57 per year (10 F2+)

Kansas: 78 per year (7 F2+)

Nebraska: 52 per year (5 F2+)

South Dakota: 32 per year (4 F2+)

Iowa: 48 per year (7 F2+)

Average: 83 per year (10 F2+)

It should also be noted that all six states listed from Tornado Alley have recorded at least one F5 tornado, while Georgia hasn't.

While the flat land may be a contributing factor, it is the geography surrounding the states that plays a bigger role. Dry air from the Rockies tot he west collides with warm, moist air from the Gulf of Mexico, forming a dry line. This triggers the development of thunderstorms that can produce tornadoes.

Tornadoes were scattered through Georgia in 2001 but the greatest concentration of activity was in the southern part of the state. This is also where the strongest of those tornadoes (an F2) occurred.

Tornado Alley is a colloquial term used for a region in the central United States, including parts of Oklahoma, Texas, Kansas, and Nebraska, known for its frequent tornado activity. In Oklahoma, Tornado Alley generally covers the central and southern parts of the state.

While tornadoes can occur almost anywhere, countries where tornadoes have a relatively high frequency include the United States, Canada, Australia, India, Bangladesh, Argentina, South Africa, and the UK. Note that the tornadoes in the UK are generally weaker than those in the other places mentioned.

The central United States has an ideal climate setup. Cool air from Canada and dry air from the Rockies collide with warm, moist air from the Gulf of Mexico, triggering thunderstorms. Initially, the development of these storms is held back by a layer of stable air called a cap, allowing instability to build, rather like a pressure cooker. If the storms can break through the cap they will develop at an explosive rate and become quite strong.

The next ingredient is wind shear, a change in the speed and direction of the wind with altitude. The wind shear has two effects. First, it separates the updraft and downdraft portions of a thunderstorm. This separation prevents the cold air of the downdraft from choking off the updraft, which would otherwise cut the storm's development short. Second, the wind shear can set the storm rotating, turning it into a supercell. It is this rotation that allows the storm to produce tornadoes. Rarely outside of Tornado Alley are conditions so favorable for tornadoes.

There are certain climatic factors that influence tornado frequency. Tornadoes need strong thunderstorms to form, these usually occur when warm moist air collides with cool dry air, the storms also need wind shear and a number of other factors to produce tornadoes.

Such factors come together in some areas more than others.

One reason it was difficult living on the Great Plains was the harsh weather conditions, including extreme temperature variations and frequent severe storms. Another reason was the scarcity of trees and water sources, making it challenging for settlers to build shelter and access essential resources like wood and water.