The organization of individual thunderstorms into a long, roughly linear band that advances as a coherent system, typically forming along or ahead of a cold front where a line of new storms is continually triggered by outflow from the storms already established. Squall lines can stretch for hundreds of kilometres and are a common source of widespread damaging straight-line winds, distinguishing them from the more localized, rotating threat of an individual supercell.
Facts
Timescale
Timescale (category) Process TypeAtmospheric Circulation 2 Connections
Sources
1. Squall line (Wikipedia)
Wikipedia infobox 'Lead section' = 'A squall line, or quasi-linear convective system (QLCS), is a line ...' on 'Squall line'View the Source 2. Squall Line Formation (Wikipedia)
Wikimedia FoundationIntroductionQuote, Introduction
A squall line, or quasi-linear convective system (QLCS), is a line of thunderstorms, often forming along or ahead of a cold front. In the early 20th century, the term was used as a synonym for cold front.
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