Event:   Lake Powell Drought Date:   06/01/2000 Location:   Lake Powell   USA

Event:   Saharan Dust Storm Date:   02/26/2000 Location:   Western Coast of Africa    Africa

Event:   Mount St. Helens Date:   05/18/1980 Location:   Cascade Mountains   USA

Event:   Southern United States Under Snow Date:   01/03/2002 Location:   Southeastern US      USA