Tornadoes

When cold air and hot air mix together it forms a tornado.

Tornadoes struck Alabama on several occasions in 2012. The most notable were on January 23, March 2, and December 25. On both dates the state was hit by multiple tornadoes as strong as EF3. Tornadoes also hit Alabama on January 26, March 23, June 10, August 29, August 30, October 1, October 14, December 10, and December 20.

Tornadoes are often made visible by a funnel cloud, which forms as a result of the pressure drop inside the tornado.

Depends on the winds that there are inside.

The Enhanced Fujita scale is the scale which measures the destructiveness of a tornado, it has 6 levels, from the EF0 to the EF5.

An EF0 tornado causes minor damage, takes away some tile or small pieces of roof coating.

An EF1 can destroy a garage, smash windows, cause serious damage to the roof and cause serious damage to manufactured home or mobile home. Poorly secured roofs may be completely torn off.

An EF2 tornado causes serious damage to a home. Rips the roof from a building well built house, overturns and destroys mobile homes. Weaker houses may partially collapse.

An EF3 tornado destroys a home with some or most walls collapsing. Poorly constructed houses may colpetely collapse This tornado overturns trains.

An EF4 tornado levels a well-built house, only a pile of rubble remains, sometimes only the foundation. This tornado destroys concrete buildings.

An EF5 tornado rips the house off its foundation and distitegrates it. After the passage of an EF5, there is nothing left of the house but a bare foundation.

First of all, Katrina was a hurricane, not a tornado. Tornadoes do not have names. And second, no. Hurricane Katrina dissipated seven years ago and can never return. The name Katrina is retired, so no future hurricane will ever have that name.

As with any place, there are advantages and disdvantages. There is no place you can live where there is not some form of danger or health hazard. Even in tornado prone areas, your chances of having your home badly damaged by a tornado are low, and your chances of being killed or injured by a tornado are even lower. Consider that, on average, tornadoes in the United States kill about 60 people annually while about 17,000 are murdered. Considering the effects of natural disasters, crime, pollution, and overcrowding together, you are probably safer in Oklahoma City than in New York City.

In terms of advanatges, the states in this region offer economic and busniess opportunities in the forms of agriculture, technological development, mining, oil and natural gas, and manufacturing. There are also a number of military bases, taking advandtages of the central location within the country.

Kansas is part of a region in the central US called Tornado Alley. This region has an ideal climatic setup for producing tornadoes. In the spring storm systems cause warm, moist air from the Gulf of Mexico to collide with cool air from Canada and dry air from the Rockies, resulting in the formation of strong thunderstorms. About a mile off the ground a layer of stable air holds thunderstorm activity back, allowing instability to build underneath it. As a result when the storm break through the cap the instability will be enormous, leading to explosively powerful thunderstorms. At the same time wind speed and direction varies with altitude, which sets these storms rotating and also strengthens the updraft. This rotation combined with strong thunderstorm updrafts can then produce tornadoes. Kansas and Oklahoma are especially active in this regard. Similar conditions can occur in other regions, but not as often.

The Joplin tornado traveled about 22 miles in total. It was in Joplin for about 7 miles.

Tornadoes are more common during the day, but they happen at night fairly often as well. About 58% of tornadoes occur during the day.

yes they can be very dangerous

The Yazoo City tornado of 2010 affected two states: Louisiana and Mississippi.

Texas gets the most tornadoes overall, though Kansas, Oklahoma, and Florida get more per area unit.

"Really bad rain storms" can have a number of interpretations. However, the state with the most flash floods is Texas.

A 45 mph wind would not to much damage at all. A few tree limbs may break and some trees may fall, but that is likely the worst that will happen. Because of the lack of damage it will be difficult to verify that a tornado ocurred and the event will likely not even be counted.

in an underground basement

Out of its way would be a good start.

Meteorologists keep track of tornadoes.

Don't panic,do what you usually do for the drill and go to the nearest place without windows.

The air inside a tornado is cooler than its surroundings. This is not due to the wind or the fact that it comes from the sky, but from the fact that the pressure in a tornado is low. As air enters a tornado it is decompressed rapidly, and cools as a consequence. This is predicted by gas laws. In many cases the temperature inside a tornado is less than the dew point, which is why the funnel forms.

Japan :)

expect them to disrupt detention operations

what time of day is most dangerous for a tornadic activity

Tornadoes in Oklahoma are largely the same as tornadoes that form elsewhere. Oklahoma is part of Tornado Alley, a region with an especially favorable setup for tornadoes. The sequence described below typically occurs during the spring.

In most cases for Tornado Alley, two or three air masses come together. The first is a warm, moist air mass form the Gulf of Mexico (maritime tropical). Second is a cool air mass from Canada (continental polar), which pushes into the maritime tropical air mass, forming a cold front. Sometimes a mass of warm, dry air from the Rockies (continental tropical) pushes in to the maritime air mass, forming a dry line. In some cases both a cold front and dry line develop, sometimes intersecting to form a triple point.

In any case, these boundaries between air masses induce lift on the maritime tropical air mass, which can trigger the development of thunderstorms. However, a layer of stable a little more than a mile above the ground, called a cap, air initially keeps the storms from developing, allowing instability to build underneath it until storms break through it and develop explosively, growing very powerful. A second, even more important factor is wind shear, which is a change in speed and direction of the wind with increasing altitude. This wind shear has three effects. First, the stronger winds at high altitude enhance the vertical pressure gradient, causing the updraft of a storm to strengthen, which in turn strengthens the storm. Second, it tilts the storm so that the updraft and downdraft separate and do not interfere with each other, allowing the storm to grow stronger still. Finally, the wind shear causes the storm, and most notably the updraft, to start rotating. At this point the thunderstorm is called a supercell and the rotating part of the updraft is called a mesocyclone. The rotation in the mesocyclone is what leads to a tornado.

How the mesocyclone produces a tornado is still not fully understood, but the leading theory is this. Rain induces a downdraft at the rear portion of the supercell. If it is not too cold this downdraft will wrap around the mesocyclone and essentially squeeze it. Causing it to tighten and extend toward the ground. Because of the tightening the rotation accelerates into and intense vortex, and a tornado is born.

In terms of what they do, many tornadoes in Oklahoma tear across open countryside, causing little or no damage. In some cases farms may be destroyed, or a weak tornado may cause moderate damage to a city or town. Unfortunately, in some cases strong tornadoes hit communities, causing major damage and even destroying whole neighborhoods and claiming lives.

Many people do have storm shelters or simple basements to take cover from tornadoes. However, many others don't. One of the main reasons is that it is actually quite expensive to build underground shelter, and beyond the means of some people. Additionally, the chances of any given person being hit by a strong tornado are relatively low, even in a tornado prone area.

Tornadoes usually form in "Tornado season", or somewhere in the spring. The 3 months are April, May, and June.