Exit Region

Exit Region - The region downstream from a wind speed maximum in a jet stream (jet max), in which air is moving away from the region of maximum winds, and therefore is decelerating.

exit region - 1. The region of diffluence at the downwind extremity of a jet stream; the opposite of entrance region. 2. Same as delta region.
expectation - Same as expected value.

EXIT REGION- Region of a trough or jet streak where the winds leave the feature. This is the downstream region from the trough axis or jet streak center. ...

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).

Right Exit Region
(or Right Front Quadrant) The area downstream from and to the right of an upper-level jet max (as would be viewed looking along the direction of flow).

See also exit region, left exit region.EntropyThe amount of energy that is not available for work during a certain process.

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.

5 km under the exit region (the place just ahead of a speed maximum) of an upper-level jet (ULJ) streak. It has a strong isallobaric component due to the pressure rise/fall pattern under the right exit/left exit region of the jet streak, respectively.

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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Notice how pressures have risen below the north entrance region, and fallen below the north exit region. This will intensify cyclones which tend to be located below the north exit quadrant.
jet streaks ...

delta region"1. A region of diffluence in the atmosphere. 2. A region aloft beneath which low-level cyclogenesis is likely to occur. Compare exit region.

See also: Air, Cloud, Temperature, Surface, Entrance Region