Pulse storm

A pulse storm is a single cell thunderstorm of substantial intensity which only produces severe weather for short periods of time.

Single cell thunderstorms ordinarily form in environments with low wind shear and moderate instability, with the low wind shear contributing to a short average lifespan of less than an hour.

[1] When the instability, calculated by convective available potential energy (CAPE), is strong, the updraft will bring a larger amount of humid air very high above ground and generate a cumulonimbus cloud with high water and ice content.

[2] When the rain content, and even hail, falls from it, they can generate damaging winds brought about by downbursts.

[3] One can distinguish three stages in the evolution of a pulse storm:[2] This article about atmospheric science is a stub.