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The formation of tornadoes is complicated.
First, you need thunderstorms, then you need a condition called wind shear, in which the speed or direction of the wind changes with altitude. If the shear is strong enough it can essentially tilt a thunderstorm. This separates the updraft and downdraft of the thunderstorm, preventing them from interfering with one another. This allows the storm to become stronger and last longer.
Additionally, if the wind shear is strong enough it can start the air rolling in what is called horizontal vorticity. This horizontal vorticity can then be turned vertical by a thunderstorm's updraft. When this happens, the thunderstorm may start rotating. The rotation is especially strong in an updraft called a mesocyclone. If the storm intensifies rapidly enough, a relatively warm downdraft called a rear-flank downdraft or RFD can wrap around the bottom part of the mesocyclone. This can then tighten and intensify its rotation and bring it down to the ground to produce a tornado.
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Can a tornado form without clouds?
No. Tornadoes form from thunderstorms. By definition a tornado must make contact with both the ground and the cloud base. However, small whirlwinds, such as dust devils, can form on cloudless days. These look somewhat like tornadoes, but are nowhere near as strong.
How do tornadoes form in tornadoes?
This best seems to describe a multiple vortex tornado. This is a tornado that has smaller vortices, called suction vortices, circling inside the main vortex. The development of such a tornado is complicated. Let's start with a single vortex tornado. Contrary to popular belief the strongest winds in a tornado are at the edge of the funnel rather than at the center. However, the lowest pressure in a tornado is at the center. While air mostly moves up in a tornado, in some especially strong ones, the low pressure causes a downdraft to move down the center of the tornado. This is a process called vortex breakdown. When this downdraft reaches ground level the air must move outward, but it soon meets the air flowing into the tornado. This interaction creates and area of very strong convergence where the inflow and outflow meet, and some of the tornado's angular momentum gets converted into smaller vortices within the main circulation. These suction vortices create looping swaths of more severe damage within the main damage path.
Why does it hail when there's no tornado outside?
Tornadoes themselves are not the cause of hail, thunderstorms are. In order to produce hail a storm must have a strong updraft to keep hailstones in the air as they form and a fairly large amount of turbulence to create the cycle that forms hail. Tornadoes also need a strong updraft to form but also need other factors such as rotation in the storm to form, but this rotation isn't needed for hail.
Is it possible to see the northern lights from Massachusetts?
It is not impossible. The conditions must be very favorable.
What are the three goldilocks conditions that earth has that life as you know it needs to exist?
A Breathable Atmosphere, temperature rate, breathable atmosphere, and liquid water. it has nothing to do with Justin bieber and how sexy he is. he has nothing to do with the Goldilocks condition's
1 What conditions must exist in order for fossils to form?
erosoin
What conditions must exist for most fossils to form?
You have to have the dead remains buried quickly and then never distroyed
What conditions must exist for a glacier to form?
Glaciers form in areas where more snow falls in winter than can melt during the summer.
What two conditions must exist for artesian well to form?
Conditions necessary for an artesian well are an inclined aquifer sandwiched between impervious rock layers above and below
What two conditions must exist for an artesian well to form?
Conditions necessary for an artesian well are an inclined aquifer sandwiched between impervious rock layers above and below
Why aren't some tornadoes created equally?
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.
What is the necessary conditions for evolution to occur?
Variation must exist.
What conditions must exist in order for a force to work on an object?
friction
What conditions must exist for a first quadrant solution?
x and y must both be positive.
These molecules must form in order for life to exist?
There are quite a few molecules that must form for life to exist. One of these life-supporting molecules is water.
What conditions must exist before a marketing exchange can occur?
.There must be at least two parties involved.
What conditions must exist in a cell for the cell to engage in fermentation?
Low or no oxygen.
