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Tornadoes

A tornado or twister is a violent, rotating column of air which typically has a speed ranging from 177 km/h to over 480 km/h. This devastating windstorm is usually characterized by its funnel-shaped cloud that extends toward the ground.

8,901 Questions

Did god make tornadoes?

If you believe in God, then God made everything, right? By definition? But we understand very well where tornadoes come from; there's no reason to be invoking the supernatural for this or any other natural disaster.

Is the eye athe worst part of a tornado?

No, the eye of a tornado is actually the calmest part, with clear skies and no precipitation. The most dangerous part of a tornado is the wall cloud and the tornado itself, where the strongest winds and most damage occur.

What was the smallest tornado in the world?

The smallest tornado in the world would be classified as an EF0 tornado on the Enhanced Fujita Scale. Tornadoes of this intensity have estimated wind speeds of 65-85 mph (105-137 km/h) and usually cause minor damage.

What time of day do tornadoes most often occur?

Tornadoes most often occur in the afternoon and early evening, typically between 3 pm and 9 pm, when atmospheric conditions are most favorable for their formation. However, they can occur at any time of day or night under the right conditions.

Where was the first tornado ever to occur?

It is impossible to say when the first ever tornado was, as they have been occurring since long before there were people around to record them. The first recorded tornad struck near Kilbeggan, Ireland on April 30th, 1054.

Do 75 percent of tornadoes form in the US of America?

75 percent of recorded tornadoes happen in the U.S. The U.S. probably has a much smaller percentage of the world's actual tornado count. This is because the U.S. keeps detailed records on the tornadoes that occur within its borders. Many other countries do not keep such records, and often only the most significant tornadoes are reported.

How tall and wide can tornadoes go up to?

Tornadoes can vary in size, with the typical width ranging from about 100 to 600 meters (330 to 2,000 feet) and the typical height reaching up to a few kilometers (1-2 miles) into the atmosphere. However, some particularly large and powerful tornadoes can be wider and taller, with widths over 1.6 kilometers (1 mile) and heights exceeding 10 kilometers (6 miles).

How do you read a fujita scale?

The Fujita scale is a scale of rating tornadoes based on the severity of the damage they cause. Below are the Fujita scale categories with corresponding wind estimates, followed by adjusted winds estimates for the Enhanced Fujita scale and typical damage.

The winds for the categories are only estimates associated with each degree of damage. In 2007 the Fujita scale was replaced by the Enhanced Fujita sclae in the U.S. Wind estimates were adjusted to what scientists believe are more accurate that the original estimates made in 1971.

  • F0: 40-72 mph (EF0 65-85 mph), light damage, some shallow rooted trees toppled, tree branches snapped, some roof surface from houses (<20% ) removed.
  • F1: 73-112 mph (EF1 86-110 mph), moderate damage, significant loss of roof surface (>20%), windows broken, trailers heavily damaged.
  • F2: 113-157 mph (EF2 111-135 mph), significant damage, roofs torn from frame homes but most walls remain intact, cars tossed, trains derailed, trailers demolished.
  • F3: 158-206 mph (EF3 136-165 mph), severe damage, roof and walls torn from frame homes, trains thrown, most trees uprooted.
  • F4: 207-260 mph (EF4 166-200 mph), devastating damage, strong frame homes leveled to the ground, trees debarked
  • F5: 261-318 mph (EF5 over 200 mph), incredible damage, strong frame homes disintegrate with foundations swept clean, car and even house sized objects thrown hundreds of yards.

What time of day do tornadoes usually occur and why?

Although they can occur at any time of day, tornadoes are most common in the late afternoon and early evening. This is when the lower atmosphere is usually the warmest and thus the atmosphere is usually the most unstable. These conditions are conducive for the formation of strong thunderstorms which, given a few other conditions, can produce tornadoes.

Can a tornado last 5 hours?

Most likely not.

The longest a tornado has been known to last was about 3.5 hours.

Does Arizona get tornadoes?

Yes, Arizona does occasionally experience tornadoes, although they are relatively rare compared to states in "Tornado Alley" like Kansas and Oklahoma. Tornadoes in Arizona are more likely to occur during the monsoon season in the late summer and early fall.

How are tornadoes identified?

There are three ways.

Doppler radar can detect the signature of a possible tornado.

If the such a signature is detected, or the radar indicates that a tornado may form, storm spotters may be called to the area. These spotters then report features such as wall clouds, funnel clouds, and tornadoes.

Tornadoes may also be identified after they move though. Experts analyze wind damage in order to determine if it was caused by a tornado or straight-line winds. One piced of information that may be examined is whether downed trees have fallen in a random distribution (suggesting a tornado) or appear to have fallen in the same direction (suggesting straight line winds).

Are there different size tornadoes?

Yes, the sizes of tornadoes vary widely. The average tornado is 150 to 200 feet wide.

However, some tornadoes have been under 30 feet wide.

On rare occasions a tornado may grow to a diameter of over mile, or even two miles.

The largest tornado ever recorded was 2.5 miles wide.

What does tornadoes leave in it path?

Most tornadoes leave a trail of mild to moderate damage, including some trees snapped or uprooted, missing sections of rooftops, and overturned trailers.

However, about 1% of tornadoes (those rated EF4 and EF5) are strong enough to destroy nearly everything they hit. In some cases a large section of an entire down can be reduced to rubble.

What is in the moist air that it causes tornado?

Moist air can contribute to the formation of tornadoes when warm, moist air masses collide with cold, dry air masses. The warm air rises rapidly and creates instability in the atmosphere, leading to the development of severe thunderstorms and tornadoes. The moisture in the air provides the necessary fuel for thunderstorm development and intensification, which can contribute to tornado formation.

What did the first tornado happend?

There is no way of knowing anything about the first tornado as these storms have been around longer than there have been people to record them.

Can tornadoes be produced by thunderstorms?

Yes, tornadoes can be produced by severe thunderstorms. Under the right conditions, a rotating column of air can develop within a thunderstorm, leading to the formation of a tornado. Thunderstorms with strong updrafts and wind shear are more likely to produce tornadoes.

What weather comes before a tornado?

Since tornado typically form in the rear portion of a thunderstorm they are usually preceded by, thunder, lightning, heavy rain and sometimes hail. This does not always stop before the tornado arrives in which case it is said to be rain wrapped.

What is a 13 course basement?

Each row of block is 1 course.

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Yep- means the basement wall is 13 rows of concrete block tall. With the mortar joints, about 9 feet.

Why do meteorologists like to chase tornadoes?

Meteorologists chase tornadoes because they can conduct research to better understand and predict them.

Many storm chasers, though are not meteorologists, and just chase for the thrill or because tornadoes fascinate them.

Can there be more than 1 tornado at a time?

Yes. During an intense tornado outbreak, there may be over a dozen tornadoes on the ground at one time across a region. In some cases, two or more tornadoes have been observed within a few miles of each other.

How does a wall cloud form?

A wall cloud forms when the rotating updraft of a supercell thunderstorm, called a mesocyclone, draws in moist air and causes the moisture to condense. The wall cloud marks the strongest part of the mesocyclone.

How long ago did the biggest tornado hit?

The largest tornado ever recorded, the Hallam, Nebraska tornado, struck in 2004, so about 6 years ago.

What makes a funnel cloud?

A funnel cloud forms when the vortex of a developing tornado draws in moist air. As the air enters the vortex it undergoes a pressure drop, which in turn produce a temperature drop. This causes the moisture to condense and form a funnel cloud.

How dark does a cloud get when a tornado is coming?

The cloud may appear dark due to the rotation and instability associated with the tornado, but the darkness is more likely from the debris and dirt that the tornado has picked up. The amount of darkness and visibility can vary depending on the time of day, weather conditions, and location.