2 years, 9 months ago
What sustains a vortex in a hurricane and tornado, once it forms?
Is a hurricane and tornado created by feedback loops of energy?
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The vortex of a tornado is the funnel like shape of the cloud of winds that if it goes above a certain velocity and reaches the ground then becomes a tornado. Generally the speed of tornado winds is 112 miles per hour though winds in excess of 200 mph are not unknown.
http://www.flatrock.org.nz/topics/environment/assets/dimmit_tornado_noaa.jpg
The center of the tornado is a low pressure area that acts like a vacuum pulling in the surrounding air within itself where it is cooled and condensation takes place; this starts a process of convection currents which gives further velocity to the tornado. In some cases the vortex or the funnel cloud that forms in the air does not reach the ground especially if there is a blanket of cold air in the higher strata of the atmosphere that retards the formation process.
The whole hurricane is a vortex.Its concentrated at the the "Eye" of the hurricane,As a hurricane strengthens and wind speeds increase, an eye begins to form at the center of the storm. Usually this happens once winds reach about 80 mph. The eye is usually circular when viewed from above,
and about 20 to 40 miles is diameter. It is roughly cylinder shape in cross section, extending through the center of the storm like a chimney. Air from above the storm sinks down in the center of the eye.
http://t0.gstatic.com/images?q=tbn:RYXcRPsv0j-x0M:http://chamorrobible.org/images/photos/gpw-20061021-NASA-ISS007-E-14887-Hurricane-Isabel-Atlantic-Ocean-20030915-medium.jpg
Surrounding the eye is the eyewall, which is the most violent part of a hurricane. The eyewall is a ring of dense cumulonimbus clouds – thunderstorm clouds. There, the strongest winds in the hurricane are found and warm, moist air is pulled into the storm, rising along the eyewall where it cools and forms more cumulonimbus clouds.
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The vortex of a tornado is the funnel like shape of the cloud of winds that if it goes above a certain velocity and reaches the ground then becomes a tornado. Generally the speed of tornado winds is 112 miles per hour though winds in excess of 200 mph are not unknown.
The center of the tornado is a low pressure area that acts like a vacuum pulling in the surrounding air within itself where it is cooled and condensation takes place; this starts a process of convection currents which gives further velocity to the tornado. In some cases the vortex or the funnel cloud that forms in the air does not reach the ground especially if there is a blanket of cold air in the higher strata of the atmosphere that retards the formation process.
The whole hurricane is a vortex.Its concentrated at the the "Eye" of the hurricane,As a hurricane strengthens and wind speeds increase, an eye begins to form at the center of the storm. Usually this happens once winds reach about 80 mph. The eye is usually circular when viewed from above,
and about 20 to 40 miles is diameter. It is roughly cylinder shape in cross section, extending through the center of the storm like a chimney. Air from above the storm sinks down in the center of the eye.
Surrounding the eye is the eyewall, which is the most violent part of a hurricane. The eyewall is a ring of dense cumulonimbus clouds – thunderstorm clouds. There, the strongest winds in the hurricane are found and warm, moist air is pulled into the storm, rising along the eyewall where it cools and forms more cumulonimbus clouds.
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