#low_pressure__lowpressure__low__depression  an air mass of lower pressure; often brings precipitation; "a low moved in over night bringing sleet and snow"
  supertype:  air_mass  a large body of air with uniform characteristics horizontally
  part of:  cyclone.atmospheric_state  (meteorology) rapid inward circulation of air masses about a low-pressure center; circling counterclockwise in the northern hemisphere and clockwise in the southern

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