LEFT FRONT QUADRANT (or Left Exit Region)
The area downstream from and to the left of an upper-level jet max (as would be viewed looking along the direction of flow).
Left Front Quadrant
Used interchangably with Left Exit Region; the area downstream from and to the left of an upper-level jet max (as would be viewed looking along the direction of flow).
This divergence results in upward motion of air in the left front quadrant (or left exit region) of the jet max. Severe weather potential sometimes increases in this area as a result. See also entrance region, right entrance region.
See also exit region, left front quadrant.Right MoverA thunderstorm that moves appreciably to the right relative to the main steering winds and to other nearby thunderstorms.
Example of phenomena that produce upward QG forcing include low level warm air and moisture advection, positive differential vorticity advection, and the right rear and left front quadrant of a jet streak.
Quadrant
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: ALQDS, Entrance Region, Exit Region, Left Exit Region, Left Front Quadrant, Right Entrance Region, Right Rear Quadrant, RRQ
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This deceleration results in divergence in the upper-level winds in the left half of the exit region (as would be viewed looking along the direction of flow). This divergence results in upward motion of air in the left front quadrant (or left exit ...
jet max (as would be viewed looking along the direction of flow). Upward motion and severe thunderstorm potential sometimes are increased in this area relative to the wind speed maximum. Also, see exit region and left front quadrant.
 See also: Storm, Severe Thunderstorm, Tornado, Thunderstorm, Weather
  
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