squall line

noun

Definition of squall line

1 : an intersection or boundary between the cold and the warm winds of an extratropical cyclone or between the cold air of an advancing anticyclone and the warm air of a cyclone : cold front

called also wind-shift line

2 : a line of squalls often 50 to 200 miles ahead of a cold front

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Cite this Entry

“Squall line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/squall%20line. Accessed 29 Nov. 2020.

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