Dust Storm 2011, Phoenix, Arizona

• 1971: A dust storm that occurred near Tucson, Arizona on July 16 was extensively documented by meteorologists.
• 1983: 1983 Melbourne dust storm: On the afternoon of February 8 a huge dust storm originating in the Mallee region of Victoria, Australia covered the city of Melbourne.
• 1997: On May 2, a sandstorm in Libya and Egypt killed 12 people.
• 2007: On Saturday afternoon February 24, a large dust storm originating in the West Texas area of Amarillo covered much of the North Texas area. Strong winds caused extensive property damage to fences, roof shingles, and some buildings. The DFW Airport was severely affected, causing extensive flight delays into and out of the DFW area. Area residents suffered respiratory problems and allergic reactions, causing many people to visit hospitals. This event was also marked by relative humidities down to 1 per cent, in one case the juxtaposition of a c. 70°F air temp and dew point of -20°F, in and around of the area affected.