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- high -
surface pressure greatest in center as air stacks up
- sinking
air - compressed and heated - clear skies
- rotates
clockwise (opposite in So. Hemisphere)
- diverges at surface
- low - surface
pressure in cyclone decreases towards the center
- rising
air - adiabatic cooling - cloudy skies
- rotates
counter clockwise
- converges
at surface, rises and diverges
aloft
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