gale warning

noun
  1. U.S. Meteorology. a National Weather Service warning of sustained winds at sea having speeds in the range 34–47 knots (39–54 mph, 17–24 m/sec).Compare warning(def 3).

Origin of gale warning

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018