Perturbation Pressure & Supercell Storm Motion - Operations Proving Ground

Perturbation Pressure Part 3: Vorticity and Storm Relative Helicity

Ariel Cohen discusses the implications of crosswise and streamwise vorticity on the development of rotating updrafts. He also introduces the equation to find storm relative helicity.

Perturbation Pressure Part 4: Crosswise and Streamwise Vorticity

Ariel Cohen continues to discuss why streamwise vorticity is more favorable for tornadogenesis by analyzing the change in horizontal vorticity over time.

Perturbation Pressure Part 10: Summary of Perturbation Pressure and Bunkers Storm Motion

Ariel Cohen reviews the terms of the perturbation pressure equation and their effects on the flanking sides of an initial updraft. Bunkers supercell storm motion is also introduced in this video.

Predicting Supercell Motion in Operations

This presentation by Matt Bunkers (SOO, Rapid City) was provided as part of Central Region's Guest Speaker Series in May of 2020. In the presentation he discusses predicting supercell motion and reviews polygon strategies.