Development of Flanking Line grows in the southwestern portion of the cluster ...
Flanking Line - A line of cumulus connected to and extending outward from the most active portion of a parent cumulonimbus, usually found on the southwest side of the storm.
flanking line"An organized lifting zone of cumulus and towering cumulus clouds, connected to and extending outward from the mature updraft tower of a supercell or strong multicell convective storm.
Flanking line
A line of cumulus or towering cumulus clouds connected to and extending outward from the most active part of a thunderstorm, normally on the northwest side.
FLANKING LINE
A line of attached cumulus or towering cumulus clouds of descending height, appearing as stair steps (usually on the southwest side) of the most active part of a supercell.
Flanking line
A line of smaller cumulonimbii that form in the warm rising air pulled in by the main updraft.
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FLANKING LINE - The main inflow clouds on the upwind side of a thunderstorm, usually a supercell. This appears as a line of towering clouds that builds towards the main updraft tower, and has a flat, rain-free base.
Visual characteristics often include a rain-free base (with or without a wall cloud), tail cloud, flanking line, overshooting top, and back-sheared anvil, all of which normally are observed in or near the right rear or southwest part of the storm.
Browse Related Terms: BLDUP, Cell, Congestus, Convection, CU, CUFRA, Cumuliform, Cumulus, Cumulus Buildups, Cumulus Congestus, DNS, Flanking Line, Towering Cumulus, Turkey Tower, Updraft
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 See also: Storm, Cloud, Updraft, Tornado, Precipitation
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