Multicell line

Multicell thunderstorms are also know squall lines. These storm form in clusters. All the elements from thunderstorms are present in these storms. Bow echos are also present in these stoems as well. These bow echos bring very strong winds. Occasionally, squall lines also form near the outer rain band of tropical cyclones ( http://en.wikipedia.org/wiki/Thunderstorm#Multicell_cluster). The squall line is propelled by its own outflow, which reinforces continuous development of updrafts along the leading edge (http://en.wikipedia.org/wiki/Thunderstorm#Multicell_cluster).