Tornadoes

It means that general conditions in a general region are favorable for the formation of tornadoes.

The chances of a tornado hitting you are low. Most tornadoes are small and even the largest are rarely over a mile wide. That may seem large, but it it is still small compared with the total area around the tornado.

Based on motorcycle registration numbers: California, Florida, Texas

earthquakes

• Most tornadoes, with ratings of EF0 or EF1, do not devastate communities. Tornado damage seen on the national news is typically from the strongest 4% of tornadoes.
• Contrary to the popular statement that tornadoes can be as wide as a mile, some tornadoes are well over a mile wide, with a few exceeding 2 miles.
• Tornado ratings are based primarily on damage, not size or wind measurements.
• A larger tornado is not necessarily stronger; some very violent F4 and F5 tornadoes have been relatively small.
• Some tornadoes actually contain several smaller, more intense vortices.

The island of Malta has been hit by several tornadoes, some of these were very destructive. Most of the tornadoes that hit Malta are waterspouts that make landfall.

ON September 23, 1551 or 1556 a very powerful waterspout hit La Valletta. It killed 600 people and was likely an F4.

Recently weak tornadoes hit Malta (EF0-EF1), the strongest was an EF1/EF2.

A tornado has low pressure in it, but it is not considered a low pressure system as it is too small to be its own weather system.

The low pressure in a tornado causes the surrounding air to rush into it.

To disperse the immense weight and add stability. The larger the base, the taller they could build the pyramids.

Because a lot of water can run to them at times without enough drainage for the water to escape.

http://harlanjacobsen.com/gerald/tornado_hazard.htm

They aren't. Wind speed is the speed at which air moves. Damage is physical harm caused to objects. Strong wind can caused damage, with damage generally being more severe with faster winds. Most damage, however is not caused by wind. Damage can result from a number of natrual and human causes.

The word you are looking for is "cyclone." A hurricane is an intense tropical cyclone and tornadoes are sometimes called cyclones as well, though it is technically incorrect to do so.

No. You should take cover in a ditch only as a last resort if no other shelter is available. A ditch is simply better than being completely exposed. The only truly safe place is underground or in a reinforced enclosure such as a tornado shelter or bank vault.

Tornadoes are a product of severe thunderstorms and are fairly common in the outer rain bands of hurricanes.

tower of babel

it's called a water spout.

no

Trees are often uprooted even in weak tornadoes, especially if the soil is loose. It is also common for tornadoes to snap branches and trunks. Violent tornadoes can send trees airborne ans strip that bark from others. Grass is usually less affected, but it can be flattened or even uprooted in a strong enough tornado. One EF5 tornado in Mississippi didn't just flatten grass; it stripped away up to 2 feet of topsoil at some locations.

A 5% risk area for tornadoes suggests an environment fairly favorable for tornado development, enough to warrant a slight risk outlook. Such conditions are sometimes favorable enough to warrant a tornado watch.

The two most basic conditions needed for tornadoes to form are instability and wind shear. Instability occurs when the lower atmosphere is warm and moist and cools with increasing altitude; this is the source of energy for thunderstorms. The best condition for the powerful storms that spawn violent tornadoes is to have a highly unstable lower atmosphere capped by a layer of stable air. This layer allows instability to build underneath it until developing storms are able to punch through it and develop at explosive rates.

The other ingredient, wind shear, occurs when the speed and direction of the wind changes direction with altitude. The wind shear can give rise to helicity, or spiraling currents of air. This spiral motion then trnasfers tot he storms and starts them rotating. Tornadoes can then form from this rotation. Nearly all violent tornadoes develop from a kind of thunderstorm called a supercell, which has a distinct rotating updraft called a mesocyclone.

Yes to all three. Hawaii has had a number of tornadoes, though none have been stronger than F2. Hurricanes are fairly rare in Hawaii's part of the Pacific, but they do happen. The worst was category 4 Hurricane Iniki in 1992. Earthquakes can also occur in Hawaii as a consequence of volcanic activity, with one earthquake registering a 7.9

vortex- a spiral or whirl

Tornadoes are called "twisters." Hurricanes are sometimes called "tropical storms" before they reach violent wind speeds, and are referred to as "typhoons" in the Pacific. Both tornadoes and hurricanes can be called "cyclones" because they both have violently rotating wind.

Warm climates .

They often do as they cover a larger area and often cause flooding in addition to wind damage. The costliest tornado in U.S. history, the Joplin tornado of 2011, cost $2.8 billion. The costliest hurricane in U.S. history, Hurricane Katrina, cost $105 billion.