The clouds that dance in the sky before the storm always give us a feeling of fear. Look at those 'obnoxious' clouds.
Dark clouds swirled around, while dust and rain were swept by the wind toward the center of the cloud. (Photo: Sean.R.heavey)
The cloud signaled a huge storm about to take place in northeastern Nebraska, USA in 2004. (Photo: Mike HollingShead)
Another cloud appeared before the storm in Murdo, South Dakota, USA in 2005. (Photo by Mike HollingShead)
This terrible cloud is moving southeast of Fargo, North Dakota, in 2006. (Photo: Mike HollingShead)
The cloud signaled a major storm in southern Kansas, 2004. ( Photo by Jim Reed)
The disk-shaped cloud on a field is as big as a baseball field. (Photo by Jim Reed)
A rotating cloud is dancing on a meadow to the west of Rooks County, near Palco, Kansas, USA, in 2008. (Photo: AP)
Huge lightning strikes appear near a storm in Grand Nebraska Island, USA, in 2005. (Photo by Mike HollingShead)
Hurricane photographer Brad Mack is taking lightning shots in a storm near the city of Apache, Oklahoma, USA in 2012. (Photo: Reuters)