Jorn Olsen works for the Dutton-Lainson Co.  in Hastings , NE, and lives by Heartwell Park next to Hastings College .  The stadium lights are at the Hastings College stadium just east of his home.

 

The clouds are called Mammatus clouds.  They do not precede a tornado, or foretell a storm, but are formed when the air is already saturated with rain droplets and/or ice crystals and begins to sink.  The worst of the storm is usually over when these kind of clouds are seen.  They are quite rare, but really beautiful .