Preprint published at the 11th Annual Severe Storms and Doppler Radar Conference in Des Moines, IA on March 22-24, 2007

and the 16th U.S./Canada Great Lakes Operational Meteorology Workshop in Milwaukee, WI on September 5-7, 2007

Radar Observations of a Rare “Triple” Three-Body Scatter Spike

Several supercell thunderstorms produced hail larger than golf balls and baseballs during the late afternoon and evening of 1 July 2006 across Northeast Wisconsin.  The largest of the storms produced hail up to four inches in diameter that damaged over 100 cars and numerous homes in Oconto County, WI.  The supercell that produced this damage exhibited a rare, triple three-body scatter spike (TBSS).

After a brief overview of the environment in which these hail-producing storms evolved, this presentation will focus on the radar characteristics of the largest hail-producing supercell.  Specifically, analysis from 3-D Level II radar display software (Gr2Analyst Edition) will be shown to demonstrate the interesting structure and evolution of a rare triple TBSS.

Phil Kurimski, Eugene S. Brusky and Jeffrey. K. Last
National Weather Service, Green Bay, WI

Back
Return to Home Page