Tornadoes

There is a siren that blows in the county that the tornado is in. However, in states such as KS, it will blow also only for a city. The siren last for a couple of minutes.

Since advanced warnings have been created tornadoes killed an average of 55 people every year in the U.S an advancement which has arisen entirely in the past 65years with major advancements in the past 30. However, the death tolls in this range vary widely. In 1986, U.S. tornadoes killed a mere 15 people, while 2011 with 553 tornadic deaths was second only to 1925.

The warm moist air usually originates from a tropical body of water. The body of water depends on the tornado forming region. For the United States it is usually the Gulf of Mexico.

Tornadoes usually form from a type of thunderstorm called a supercell, which has a rotating updraft called a mesocyclone. A downdraft at the back of the storm, called the rear-flank downdraft or RFD is believed to wrap around the tornado, tightening and intensifying it to produce a tornado.

They didn't prepare. Waco was never warned about the approaching tornado, which was obscured by rain. As a result, nobody knew it was coming.

Tornadoes can happen just about anywhere. But those most at risk live in the central United States, Southern Canada, Bangladesh, and South Africa.

Although they can cause some erosion, tornadoes do not usually affect the ground itself very much. However, objects on the ground such as trees and buildings can be destroyed. People can lose their homes, businesses, and even their lives.

The late afternoon and early evening is generally when the lower atmosphere is warmest, due to heating from the sun and therefore when the atmosphere as a whole is unstable. The more unstable the atmosphere, the greater the potential for thunderstorms, especially strong ones. Strong thunderstorms are needed to produce tornadoes.

It is not uncommon for tornadoes to occur in Mississippi during the summer, but they are more common in the spring.

In the U.S. May has the most tornadoes on average. Worldwide it is not known because most countries do not report reliable tornado information.

The most violent tornadoes generally occur in North America.

True tornadoes only form on earth, as far as scientists know. These may become red if they encounter red dust. The planet Mars, had red dust devils. Dust devils resemble tornadoes but they are not actually tornadoes.

There are clouds in both hurricanes and tornadoes. While a hurricane consists of one enormous cloud mass, a tornado consists of a funnel cloud extending from the base of a thunderstorm.

The Fujita scale uses the severity of the damage a tornado causes to determine its rating.

A strong tornado is one of EF2 to greater strength, which would mean estimated winds greater than 110 mph. The next stage up, a violent tornado, beginning at EF4, has winds over 165 mph. The absolute most powerful tornadoes can produce winds in excess of 300 mph.

A haboob can mainly just cause power outages and tree damage.

Yes, it is possible but it would take a very powerful tornado to do so. One of at least EF4 strength if the house isn't well anchored. If it is well anchored it would likely require an EF5 tornado.

One person managed to capture such an event on video near the town of Elie, Manitoba on June 22, 2007. Despite the tornado's relatively small size it was violent enough to be rated as Canada's only official F5 tornado.

The safest place to be in your house during a tornado is in the basement.

Wind speed in a tornado is usually estimated using the damage caused by the tornado's winds and the Fujita scale, which categorizes tornadoes based on their intensity. Meteorologists may also use Doppler radar data to estimate wind speeds within a tornado. Direct measurement of wind speed in a tornado is rare due to the dangerous and unpredictable nature of tornadoes.

The funnel cloud of a tornado is full of water droplets just like an ordinary cloud. As a result it blocks light and may appear dark. A tornado may also appear dark if it is lifting large amounts of dark soil into the air. However, not all tornadoes are dark in color. Front-lit tornadoes may appear light gray or even white. Depending on the soil some tornadoes may be light tan, to reddish brown, to gray in color.

As with just about all places that tornadoes strike the damage varies widely depending on how strong the tornado is and exactly where it hits. Since South Dakota is mostly rural most tornadoes cause little to no damage as they don't hit much. However a strong enough tornado could still easily level a few farms. In some cases a weak tornado strikes a town, causing minor to moderated damage. In rare cases, though a large, violent tornado can strike a community and cause utter devastation.

Tornadoes are very dangerouswith there wind speeds and they can kill people in a snap of a finger.

It depends on how fast the tornado is moving, which varies. An average tornado moves at about 30 mph, so it would take 2 minutes to travel a mile. The fastest a tornado has ever been known to travel was 73 mph, in which case it would travel a mile in about 50 seconds. At the other end, some tornadoes barely move at all.