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Vortexes (wind in circles) are formed when masses of air (even water) move up or down significantly, toward or away from the equator. The Earth is rotating, and its surface is curved. The differences in momentum express as a "whirl", and it maintains until the difference in momentum is lost via friction. The wind rotates in circles because the Earth's surface is curved and moving in circles.
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∙ 15y ago
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∙ 14y agoWinds in a cyclone in the Southern Hemisphere rotate in a clockwise direction.
Cyclones are known as hurricanes and typhoons in the northern hemisphere, where their winds rotate in an anti-clockwise direction.
As for how these winds start: Cyclones occur in areas of very low pressure when air that is heated by the sun rises rapidly, and becomes saturated with moisture which then condenses into high thunderclouds. As the atmosphere becomes favorable for development (no wind shearing in the higher parts of the atmosphere), normal thunder storms clump together.
When the hot air rises, cooler air rushes in to fill the area left vacant by the hot air. The Coriolis effect of the Earth spinning on its axis causes the air to spiral upwards with considerable force. This in turn causes the winds to rotate faster, causing the tropical low to deepen in intensity into a tropical depression, and eventually a cyclone which is anywhere between hundreds of kilometres to thousands of kilometres wide.
Cyclones are also characterised by strong winds, yet in their centre is a clear, calm region called the 'eye'. When the cyclone continues its course, and the winds return from the other direction, they may seem to be more violent. The winds are not just rotating; there is also the effect of the warmer air continually rising and cold air rushing in. That is why the winds are so strong, and seem to move in all directions.
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∙ 12y agoThe coriolis effect causes wind to curve due to earth's rotation
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∙ 11y agoBecause of earth rotating on its axis. this is called the Coriolis effect
you just got your answer from a 13 year old
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∙ 14y agoconvection
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∙ 10y agoso they can create a weather
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Is when the speed of a storm winds increases and winds begin to swirl a tropical strom?
This is called tropical cyclogenesis.
Are doldrums characterized by weak winds or strong winds?
weak winds because doldrums are calm winds on the earth.
Is tornadoes the fastest wind on Earth?
Yes. Winds in a tornado can, on rare occasions, produce winds over 300 mph. No other storm on earth can produce such winds.
What make the strongest winds on earth?
Tornadoes have winds that can exceed 300 mph.
Why do winds deflect or blow sideward?
winds blow sideways because of the rotation of the earth.
Do the winds swirl around the eye of the tornado?
Not all tornadoes have an eyelike feature, but the winds do swirl around a center of rotation, whether it is marked by an eye or not.
Is when the speed of a storm winds increases and winds begin to swirl a tropical strom?
This is called tropical cyclogenesis.
In Australia what direction does the wind swirl in a cyclone?
In Australia, a cyclones winds travel in a clockwise direction. In the northern hemisphere, the winds travel in a counterclockwise direction.
What effects causes hurricanes to have their swirl?
It swirls due to the earth's rotation.
Are doldrums characterized by weak winds or strong winds?
weak winds because doldrums are calm winds on the earth.
What is a primary cause for surface winds on earth?
A primary cause for surface winds on the earth is the Earths Rotation.
What does the magnetosphere do to the solar winds?
It deflects the solar winds around the Earth
Why do the global winds curve like they do?
Global winds are caused by unequal heating of the Earth's surface and they curve because... If the Earth did not rotate, Global Winds would not curve. They would be straight as a line. So because of EARTH'S ROTATION, global winds curve.
Is tornadoes the fastest wind on Earth?
Yes. Winds in a tornado can, on rare occasions, produce winds over 300 mph. No other storm on earth can produce such winds.
Which portion of Earth's atmosphere are the trade winds in?
The Trade Winds are in the lowest layer of the Earth's atmosphere. The Trade Winds blow near the equator. They are so called as trade in the days of sail relied upon these winds.
Why do global winds curve as they blow from one part of the Earth's surface to another?
The winds curve because of the rotation of the Earth.
What factors contribute contribute global winds?
The shape of the earth, uneven heating, and rotating earth contribute to global winds.
