Tornadoes

The best shelter from a tornado is a basement or cellar. If none is available an interior rooms, especially a closet or bathroom away from windows is the next best shelter.

A cyclone is a large weather system also known as a low pressure system. There system bring rain, wind, and thunderstorms.

A tsunami is a large ocean wave usually resulting from an undersea earthquake or landslide.

A tornado warned storm is a thunderstorm for which a tornado warning has been issued, indicating that it is capable of producing a tornado. A tornado threat is a general term that refers to the danger tornadoes may pose to an area during a particular storm.

France has a quite mild and temperate weather and the differences of temperature which help create tornadoes are very rare. It follows that France is very rarely hit by tornadoes, and that these rare tornadoes are usually very limited in scale and range. The last important tornado to hit France was recorded in 2008.

The fact that a small to moderate tornado outbreak occurred shows that there clearly was a risk. The Outlooks issued by the Storm Prediction Center reflected that possibility.

Some people believe that the bridge will stop the vertical movement of air in a tornado, ignoring the fact that there is a horizontal component as well. This idea became more popular when a family and some storm chasers took shelter under a bridge and survived without harm. However, what was not immedeately apparent was that the tornado actually missed the bridge.

In this case it can be confirmed that the tornado has touched down. The funnel of a tornado does not have to touch down for the tornado to do so, and the vortex actually reaches the ground before the funnel does. The circulation reaching the ground is a more significant event. When the vortex is aloft its updraft can draw in air from directly below. This is no longer possible when the circulation reaches the ground. Since air can no longer be drawn in from below the pressure inside the vortex drops, causing the wind in it to intensify.

A foot is the singular form of feet. One square foot is one foot wide by one foot long. The exact length or width of a 3500 square foot space can't be calculated without knowing either the length or the width, because one depends on the other. It could be 35 feet wide by 100 feet long. Or vice-versa. It could be 350 feet wide by 10 feet long. Or vice-versa. Etc. Hi, Thks for the response...the width is 10cm and length is 100cm. Does that help???

Both tornadoes and tsunamis are violent natural disasters that can occur suddenly and with little warning and can cause catastrophic damage. Other than that they are very different phenomena.

Both tornadoes and dust storms are dangerous wind storms that are can lift dust into the air. Other than that they are quite different. A dust storm consists of primarily straight-line winds while a tornado spins about its center and is generally much smaller but more destructive.

Storm chasing is mostly an independent hobby. There isn't a formal association to join nor are there any official rules or guidelines to follow.

If you're new to the hobby and have little or no experience observing severe storms, I highly suggest that you avoid chasing alone. Instead, seek out an experienced chaser or chase tour group in your area to help you learn the ropes. You'll have a much better (not to mention safer) time if you go about it that way.

There is one group that organized somewhat of a chasers "club" back in 1977, and it still contains some of the most reputable chasers in the U.S. to this date. They used to publish a magazine called "Storm Track" which is now fully online. The forum on their site contains lots of valuable knowledge and tips from the pros.

There was never a "mother ship tornado." The thunderstorms that most often spawn tornadoes, called supercells, will sometimes take on a "mothership" shape, with clouds that appear to consist of stacked disks. Without more specific information, is is impossible to know which event this question refers to.

The Daulatpur-Salturia tornado of 1989 in Bangladesh killed over 1300.

Most tornado deaths are the result of people by struck by flying or falling debris.

It can vary considerably as the is a fair degree of uncertainty. Usually it will mean a few scattered and mostly weak tornado will occur. Tornadoes stronger than EF2 are probably unlikely, though there are exceptions.

This qualifies as a slight risk outlook.

It is impossible to say; tornadoes have been occurring there since before anyone was around to record them. It is likely they have been occurring there since the land that would become Washington first formed.

I do know that the shortest lasting tornado was in Tuttle, Oklahoma, U.S.A. on May 31, 2013 at 7:45PM. It lasted only 7.5 seconds. It ended at 7:45PM.

No state in or west of the Rockies has ever recorded an F5 or EF5 tornado. These include Alaska, Hawaii, Washington, Oregon, California, Idaho, Nevada, Utah, Arizona, Montana, Wyoming, Colorado, and New Mexico. Other states without recorded F5 or EF5 tornadoes are on the east coast including Maine, Vermont, New Hampshire, Connecticut, Rhode Island, Massachusetts*, New York, New Jersey, Delaware, Maryland, Virginia, West, Virginia, North Carolina, South Carolina, Georgia**, and Florida.

*The Worcester, Massachusetts tornado of 1953 was officially an F4 but is believed by some to have been an F5.

**One EF5 tornado in 2011 crossed into Georgia but was only an EF5 during its time in Alabama.

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Yes. Tornadoes are not uncommon in Ohio, and contrary to what some believe, no location is "protected." Modern records, which date back to 1950, show that at least one tornado has hit Zanesville.

All the tornadoes depicted in Twister were fictional. The F5 in the 1969 opening sequence was not stated to hit Wakita and was likely set somewhere east of Hennessy. The town of Wakita has never been hit by a tornado

No. This was once believed but has since been disproven. The pressure drop inside a tornado is insufficient to cause significant damage. Damage is caused instead by the wind in the tornado and debris carried by it. Even in a tornado of moderate intensity, this damage would put enough holes in a building to equalize pressure rather quickly.

Technically, tornadoes are not cyclones. A cyclone is a weather system that consists of a low-pressure area with cyclonic rotation, meaning counterclockwise in the northern hemisphere and clockwise in the southern. A hurricane meets all of these standards. A tornado is a low pressure area with an organized cyclonic rotation, but it is a small-scale vortex dependent on a parent thunderstorm, not large-scale independent weather system.

You are most likely to find in the spring and early summer.