File:Roll-Cloud-Racine.jpg

Summary
Roll cloud under thunderstorms, sign of the gust front.

Date: Taken on June 1st, 2007 in downtown Racine, WI.

Author:This work has been released into the public domain by its author, Eazydp. This applies worldwide. In case this is not legally possible: Eazydp grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.