Definitions

from The Century Dictionary and Cyclopedia

  • n. In meteorology, a squall occurring along the axis of a V-shaped barometric depression, generally secondary to a large cyclonic area, consisting of a violent straight blow of cold air, usually from the northwest, accompanied by rain or snow and a sudden rise of the barometer: so called by Abercromby. The Iowa squall or derecho is a line-squall.

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