The temporal behavior of numerically simulated multicell-type storms. Part I: models of behavior

Abstract

The temporal behavior of mature multicellular model storms, created in an experiment that varied the vertical wind shear layer depth, is examined herein. These storms form new cells at low levels on the storm's forward side, in or near the forced lifting zone at the edge of the evaporationally chilled subcloud cold-air pool. Each moves upward and rearward within the storm as it intensifies, matures, and decays and becomes replaced by a new cell development. As a result, the storms oscillate in time with respect to updraft intensity and the generation of condensation and surface rainfall. -from Authors