Tornadoes

It is recommended to stay away from windows during a tornado. If time permits, you can cover windows with storm shutters, plywood, or even thick blankets to help protect against flying debris. It's best to take shelter in an interior room on the lowest level of your home.

The primary job of storm chasers is to track and study severe weather phenomena like tornadoes and hurricanes. They use specialized equipment and knowledge to gather data that helps improve forecasting and understanding of these events. Additionally, storm chasers often provide real-time information to help keep communities safe during severe weather outbreaks.

There are a couple sources of sound that are readily apparent. First there is the sound that made by the powerful wind as it moves across the ground, trees, and buildings. Some times you can also hear the sound of buildings being torn apart.

It all involves the conditions that lead to them forming. To produce a strong, long tornado a thunderstorm must have strong rotation and a strong updraft, and the relative humidity should be fairly high. In order to produce a long-track tornado, the storm must be able to maintain the tornado-producing state. Weak tornadoes form when conditions are less ideal. Some weak, short-lived tornadoes are spin ups that form outside of a larger supporting circulation.

At ground level, there is no intensity. At higher elevetions the intensity is less than after the tornado has touched down. When a tornado touches down, it is no longer able to draw in air from below. This causes the pressure in the core of the vortex to drop, leading to an increase in wind speed.

The wind moves in a spiral fashion, moving rapidly toward the center of the tornado in a cyclonic fashion, meaning counterclockwise in the northern hemisphere and clockwise in the southern. In the core of the tornado this wind takes on a more circular pattern. In addition to the spiral movement, wind in a tornado moves rapidly upwards. There may be fairly calm area of sinking air at the center of some tornadoes. In these tornadoes, a series of smaller whirlwinds can sometimes develop inside the tornado. These spinning columns of air circle the tornado's center, moving with the rotation.

Cyclonic rotational direction is controlled by the coriolis effect induced by the rotation of the earth. Perhaps the simplest way to demonstrate the effect is to place a tennis ball below and above a plate and rotate the plate. The ball on top will be rotated in one direction by its contact with the plate while the ball beneath will rotate in the opposite direction. As the earth spins it acts on the atmosphere in a similar manner.

Generally, it doesn't. Air generally moves up in a tornado. When the funnel of a tornado descends, the air is not moving down. The funnel itself is due to the pressure drop inside a tornado. This cools the air that is drawn into it, causing moisture in it to condense into a cloud. As the tornado forms and intensifies, the pressure and core temperature drop, allowing condensation to occur at a lower altitude. In some tornadoes, however, air does move down in the center of a tornado. This occurs when a tornado is spinning so rapidly that air spiraling in from the sides cannot reach the center. Instead, air is drawn downward through the center.

Yes, a wedge tornado is powerful enough to pick up a cinder block. Tornadoes of this size and strength are capable of lifting and hurling heavy objects through the air with ease. It is important to take shelter and stay safe during tornado warnings to avoid potential damage from flying debris.

It depends. There is a common misconception that a wedge tornado is necessarily an EF4 or EF5. While many wedge tornadoes are quite powerful, some are not particularly intense. That said, many of the most violent tornadoes are wedges. The most violent tornadoes are capable of picking up large objects such as houses, trains, oil tanks, and heavy construction equipment.

It is highly unlikely for a tornado to pick up an airplane due to its heavy weight and design. Airplanes are built to withstand strong winds and turbulence, and they are not easily lifted off the ground by tornadoes.

F2 is the beginning of what is called a strong tornado. On the original Fujita scale F2 wind speeds were estimated at 113 to 157 mph. On the Enhanced Fujita scale this was adjusted to 111 to 135 mph, which is believed to correlate better with the damage done. Typical F2 damage includes roofs torn from well-built houses with trailers, barns, and garages completely destroyed. Most walls will be left standing in a well-built house, though weaker ones may collapse. Cars may be lifted and tossed short distances. Large trees will be snapped. Size is not a factor in rating a tornado; ratings are instead based in the severity of the damage done. However, there is a general trend for stronger tornadoes to be larger. F2 tornadoes typically range between 100 yards and a quarter of a mile wide but can be smaller or larger than this in some cases.

Note that tornadic winds do not just go up; they sprial upward. So the damage is not purely a result of the upward movement. That said, the vertical component of dornadic winds makes them more damaging then simple-horizontal winds. The rapid upward movement of air makes it more likely for roofs to torn from structures. In somce cases whole barns, trailers, and event houses may be lifted.

On the original Fujita scale, an F5 tornado had estimated winds of 261-318 mph. Today, most scientists believe that this estimate was too high for the damage done. On the new Enhanced Fujita scale, an EF5 tornado is estimated to have winds in excess of 200 mph, while the degree of damage remains the same. These estimates are understandably difficult to verify.

A tornado originates from a much larger but less intense circulation called a mesocyclone, located in the updraft area of a thunderstorm. Under the right conditions, a downdraft can wrap around a portion of the mesocyclone, causing it to become narrower. Since angular momentum must be conserved, as the rotation becomes narrower, it must also become faster. This leads to the relatively small but very intense circulation that we call a tornado.

Weak tornadoes typically last for only a few minutes, generally ranging from a few seconds to around 10 minutes. These tornadoes are usually short-lived and localized, causing less widespread damage compared to stronger tornadoes.

The variety of objects that tornadoes have picked up is too vast to list. In all likelihood, just about every household or workplace item imaginable has been picked up at some point or another. Some of the more impressive objects that have been picked up by tornadoes include houses, churches, train cars, construction equipment, and oil tanks.

The appropriate response to a severe weather watch is to stay informed by monitoring updates from trusted sources, prepare an emergency kit including food, water, and important documents, and review your family emergency plan. Be ready to take quick action if a warning is issued.

Tornadoes are more likely to lift lighter objects as they generate an upward force with their strong winds. Heavier objects may be more difficult for tornadoes to lift unless they are caught in the vortex of the tornado's winds.

A tornado is officially confirmed when a rotating column of air reaches the ground and makes contact with the surface. This contact creates the characteristic funnel cloud shape that is associated with tornadoes.

It varies widley from one tornado to another, and most tornadoes will vary in strength during their time on the ground. Weak tornadoes may have peak winds of only about 65 mph. In rare cases, peak winds may exceed 300 mph. Generally weaker tornadoes are more common.

Very few tornadoes ever have their winds measured. Most of the time the wind speed is estimated based on the damage that is done.

Most actual measurments, when they do occur, are taken using mobile Doppler radar.

Precipitation is a key factor in the formation of tornadoes. Tornadoes often form within thunderstorms, where strong updrafts and downdrafts can lead to the development of a rotating column of air. The presence of precipitation can add instability to the atmosphere, enhancing the conditions necessary for tornado formation.

As with all weather on Earth, the ultimate source of energy is the sun.

The sun heats the Earth, which create masses of warm, moist air that act as fuel for thunderstorms. Under the right conditions, these storms can sometimes produce tornadoes.

The tornado scale, known as the Enhanced Fujita Scale (EF-Scale), was developed by a team led by Dr. T. Theodore Fujita in collaboration with Allen Pearson. It was an update to the original Fujita Scale of tornado intensity.