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How are the strong winds associated with the tornado in diagram c?
The strong winds associated with a tornado in diagram c are caused by the updraft and downdraft within the thunderstorm. As warm, moist air rises rapidly, it creates rotation within the storm, leading to the development of a rotating updraft called a mesocyclone. The violent winds in the tornado are a result of this rotating column of air reaching the ground.
Strong updrafts within a thunderhead can produce?
Strong updrafts within a thunderhead can produce severe weather phenomena such as large hail, lightning, and intense rainfall. These updrafts can also contribute to the formation of tornadoes within the storm.
Are tornadoes caused by updrafts?
Not directly. A tornado forms in the updraft of a thunderstorm, but other forces, such as a downdraft are at work.
Why do supercells create the most severe weather?
Supercells have very strong, rotating updrafts (upward moving air currents). The updraft is what feeds a thunderstorm. This pulls large mounts of moisture into the storm, meaning a lot of rain in a short period. Cooling from this rain can produce violent downbursts with destructive winds. The updraft also keeps hailstones aloft, so that they can grow quite large before falling to earth. Finally, the strength and rotation in the updraft of a supercell creates the ideal conditions for the formation of tornadoes, including the most destructive F4 an d F5 storms.
Does condensation cause tornadoes?
Condensation is not the direct cause of tornadoes. Tornadoes form as a result of severe thunderstorms in the presence of strong wind shear and atmospheric instability. However, condensation within a thunderstorm can contribute to the development of the rotating updraft that is necessary for tornado formation.
What must happen in the atmosphere for a thunderstorm to become a tornado?
A thunderstorm does not become a tornad; it produces one. To start off, in most cases the storm must encounter strong wind shear, or a shift in wind speed and direction with altitude. This sets the storm rotating, turning it into a supercell. If the storm develops in the right manner, a downdraft may descend from the rare portion of the storm and wrap around the mesocyclone, or rotating updraft of the storm. This causes the mesocyclone or a portion of it to tighten and intensify, forming a tornado.
What is the relationship between a mesocyclone and a tornado?
A mesocyclone is a rotating updraft within a thunderstorm, usually a supercell. Under the right conditions a mesocyclone will tighten and intensify to produce a tornado. The majority of tornadoes form this way.
Is an updraft the middle of a tornado?
No, an updraft is not the middle of a tornado. An updraft is the rising current of air within a storm or tornado that fuels its rotation and strength. The middle of a tornado is called the "eye," which is a calm and clear area surrounded by the rotating winds.
Strong updrafs within a thunderhead can produce?
Strong updrafts within a thunderhead can produce severe weather phenomena such as lightning, large hail, and heavy rain. These updrafts are responsible for the rapid vertical development of the cloud and can reach speeds of up to 100 mph.
What is a mass of spinning rising air that may produce a tornado?
I think the word you're looking for is "vortex".
Why do supercells that produce tornadoes large hailstones?
In a supercell the tornado forms from the rotating updraft called a mesocyclone as a result of its rotation tightening and intensifying. The updraft in a supercell is also very strong, and can keep objects such as hailstones airborne. Hailstones start out as small pieces of ice that get cycled through different levels of the storm, the higher ones being below freezing and the lower ones being above freezing. With each cycle a new layer of ice is added until it is too heavy for the updraft to hold up.
What is the difference between a regular thunder cell and a supercell?
A normal thunder storm cell is relatively a short lived convective cell that usually dissipates within a half hour of forming as the downdraft chokes off the updraft. Ordinary storm cells do not rotate and usually do not produce severe weather. A supercell is the most powerful kind of thunderstorm, larger and stronger than a typical storm cell. Supercels are defined by their rotation and an associated area of low pressure called a mesocyclone. Supercells often produce severe weather. They can produce powerful wind gusts, large hail, and strong tornadoes. Nearly all strong tornadoes form from supercells. Additionally, a supercell has separate updraft and downdraft regions that do not interfere with each other, allowing these storms to persist for hours.
