Left Exit Region
Used interchangably with Left Front Quadrant; 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.
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).
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 ...
 See also: Stability, Downstream, Temperature, Period, Instability
  
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