Right Mover - A thunderstorm that moves appreciably to the right relative to the main steering winds and to other nearby thunderstorms. Right movers typically are associated with a high potential for severe weather.
Of the two, the right mover is most likely to weaken and dissipate (but on rare occasions can become a very severe anticyclonic-rotating storm), while the left mover is the one most likely to become a supercell.
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Splitting StormA thunderstorm which splits into two storms which follow diverging paths (a left mover and a right mover). The left mover typically moves faster than the original storm, the right mover, slower.
These are called "right movers" and they are favored with veering winds. Occasionally, these thunderstorms will move to the left of the mean wind. These thunderstorms are called "left movers".
A thunderstorm which splits into two storms which follow diverging paths (a left mover and a right mover). The left mover typically moves faster than the original storm, the right mover, slower.
Storm and Mesoscale Ensemble Experiment
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Left Mover, Right Mover, Splitting Storm, Storm, Storm Scale, Storm Tracking Information ...
in front of a squall line, although they can sometimes be embedded in a squall line. Because they can last for hours, they are known as quasi-steady-state storms. As they usually track to the right of the mean wind, they are said to be right movers.
 See also: Tornado, Clouds, Radar, Thunderstorm, Severe weather
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