squall line

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squall line

n.
A line of thunderstorms preceding a cold front.

squall line

n
(Physical Geography) a narrow zone along a cold front along which squalls occur. See also line squall
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.squall line - a cold front along which squalls or thunderstorms are likely
cold front, polar front - the front of an advancing mass of colder air
References in periodicals archive ?
In Stockholm, Chester continued work on shear lines and on a project with Harriet looking at the nature of squall lines.
Cold fronts are probably the most dangerous, and are associated with bands of thunderstorms and fast-moving squall lines.
As it turned out, two squall lines had converged on the carrier.
These results suggest that the weakness of the original SBU-YLIN scheme in simulating squall lines is not solely due to the small terminal velocity of precipitating ice as recently pointed out by Morrison et al.
Squall lines can propagate storms well ahead of the line.
They can form by themselves (single cell, super cell, or airmass), or in clusters (frontal, squall lines, or mesoscale-convective complexes-MCCs).
Excellent nocturnal datasets were collected on the initiation, upscale growth, and dissipation of MCSs; on linear squall lines, bow echoes, and MCSs with convective "fingers" protruding into upstream flow; on back-building MCSs (see sidebar on "MCS growth mechanisms"); on the dynamics and microphysics of stratiform regions; on the transition from surface-based to elevated cold pools and inflow regions and vice versa; and on severe weather aspects (hail, heavy rain, severe straight-line winds, and tornadoes).
Wakimoto has published research on topics such as tornadoes, microbursts, fronts within extratropical cyclones, convection initiation, squall lines and bow echoes, elevated pollution layers, and sea breeze fronts.
In stronger squall lines, brief "spinups" called gustnadoes often occur along the outflow boundary, and they'll appear as brief, tornado-like dust clouds.
Houze, 1987: Rear inflow in squall lines with trailing stratiform precipitation.