cyclonic rotation"Generally circular motion of a mass in the same sense as that of the earth, that is, counterclockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere, undefined at the equator.
Cyclonic Rotation
Circulation (or rotation) which is in the same sense as the Earth's rotation, i.e. counterclockwise (in the Northern Hemisphere) as would be seen from above.
Anticyclonic Rotation - Rotation in the opposite sense as the Earth's rotation, i.e., clockwise in the Northern Hemisphere as would be seen from above. The opposite of cyclonic rotation.
ANTI-CYCLONIC ROTATION
Rotation opposite that of the earth. For example, clockwise in the Northern Hemisphere as would be seen from a view above. The opposite of cyclonic rotation.
(or cyclonic rotation) Circulation (or rotation) which is in the same sense as the Earth's rotation, i.e., clockwise (in the Southern Hemisphere) as seen from above. Winds around synoptic-scale low pressure systems circulate cyclonically.
AnticycloneA large-scale circulation of winds around a central region of high atmospheric pressure, clockwise in the Northern Hemisphere, counterclockwise in the Southern HemisphereAnticyclonic RotationRotation in the opposite sense as the ...
Forming in the area of a thunderstorm updraft, or inflow area, it exhibits rapid upward movement and cyclonic rotation. It usually develops before strong or violent tornadoes. WARM To have or give out heat to a moderate or adequate degree.
Spotters should be especially wary of inflow bands that are curved in a manner suggesting cyclonic rotation; ...
Areas of circulation also can develop at either end of a bow echo, which sometimes can lead to tornado formation - especially in the left (usually northern) end, where the circulation exhibits cyclonic rotation.
The Coriolis effect also initiates cyclonic rotation, but it is not the driving force that brings this rotation to high speeds - that force is the heat of condensation.[19]
Interaction with the mid-latitude westerlies ...
Nearly all mesocyclones and strong or violent tornadoes exhibit cyclonic rotation, but some smaller vortices, such as gustnadoes, occasionally rotate anticyclonically (clockwise). Compare with anticyclonic rotation.
Usually associated with a high-pressure system. ANTICYCLONIC rotation is any rotation opposite to that of a cyclone. This rotation is clockwise in the northern hemisphere and counter-clockwise in the southern hemisphere.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Anticyclonic Rotation, Aurora Australis, Aurora Borealis, Coriolis force, Northern Lights, NRN
Also listed in ...
When seen from within several miles, many wall clouds exhibit rapid upward motion and cyclonic rotation. However, not all wall clouds rotate.
An abrupt lowering of a cloud from its parent cloud base, a cumulonimbus or supercell, with no visible precipitation underneath. Forming in the area of a thunderstorm updraft, or inflow area, it exhibits rapid upward movement and cyclonic rotation.
They may indicate the strength of the inflow of moist air into the storm, and, hence, its potential severity. Spotters should be especially wary of inflow bands that are curved in a manner suggesting cyclonic rotation; ...
because the winds near the ground are much weaker. This simple picture is complicated by the turning of the wind direction with height, but the concept remains similar. Lifting this "horizontal" vortex into the updraft results in cyclonic rotation.
forecasting, it usually refers to the vertical component of rotation (i.e., rotation about a vertical axis) and is used most often in reference to synoptic scale or mesoscale weather systems. By convention, positive values indicate cyclonic rotation.
usually moving at a rapid pace of at least 40 mph. It is rare, but bow echoes can produce brief tornadoes. This can occur at either end of a bow echo, but most likely in the left (usually northern) end, where the circulation shows cyclonic rotation.
 See also: Cyclonic, Rotation, Air, Wind, Weather
  
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