Semipermanent depression
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- Semipermanent depression (low) Slowly moving or motionless cyclone.
NSIDC - Cite This Source - This Definition - Alberta Low, Aleutian Low, Cold low, Cyclone, Cyclone movement, Cyclonic circulation, depression, Icelandic Low, Intertropical Convergence Zone, Low, North Atlantic Oscillation, Synoptic-scale, trade winds