What is a Squall line?

Answer 1

A squall line is a line of thunderstorms that have a common lifting mechanism. Some lifting mechanisms occur in bands such as fronts, large outflow boundaries, gravity waves, and isentropic lifting processes. The classic squall line will develop out ahead of and parallel to a boundary such as a cold front or dry line. After the first storms form, they will continue to evolve and new storms will develop (most frequently) to the east and south. The squall line will sustain itself by producing its own trigger from the lift due the development of the forward moving outflow boundaries (gust front). As long as instability and moisture remain sufficient ahead of the squall line, the squall line will continue to propagate. The squall line dies when the heat and moisture are no longer sufficient to maintain thunderstorm development ahead of it.

Answer 2

I need easily between 1000-2000 words that what squall lines are,their formation and occurrence.
But in simple one line statement we can say that a squall line is a type of thunderstorms arranged in lines they may be supercell or cumulonimbus.

Answer 3

A squall line is a line or belt generally some tens or hundreds of Kms length, along which strong convective phenomena exist, some times marked by upper air trough and not marked by surface front.In other words,it is a violent convective phenomena extending along a line or belt of considerable length which is of non-frontal nature.

Answer 4

A ton of thunderstorms in a line.