Convergence is an atmospheric condition that exists when there is a
horizontal net inflow of air into a region.
When air converges along the
earth's surface, it is forced to rise since it cannot
Large scale convergence
can lift a layer
of air hundreds of kilometers across.
Vertical motions associated with convergence
are typically much weaker than the small-scale vertical
motions associated with
convective processes. As a result,
clouds generated through convergence, for example
are typically less vertically developed than