"This is a timelapse of the Phoenix Sandstorm from Maricopa, AZ that hit at 5.30 PM" on June 16, YouTube poster whittakerbrock wrote.
Dust storms are common in the southwestern U.S. during the summer, which is the region's monsoon season. During the monsoon, an overall shift in winds across the Southwest draw in tropical moisture, resulting in a significant increase in thunderstorm activity and rainfall.
Thunderstorms that develop can produce strong downdrafts, or "downbursts", which are powerful winds that blast downward and outward from the thunderstorms.
When this happens, dry, loose sand on the desert floors can get kicked up, creating a wall of dust that travels outward, spanning a much larger area than the thunderstorm itself.
Dust storms that develop in this way are also called haboobs. They can happen in desert regions across the world.
Rescue efforts are underway in Hiroshima, Japan, after several landslides buried people and caused severe damage on Wednesday morning, local time.
There have been six times the number of named tropical systems in the Eastern Pacific Basin compared to the Atlantic Basin. While the Atlantic will catch up somewhat, the lopsided ratio will continue.
In the commune of Cogoleto, 16 miles west of Genoa, Italy, a storm system spawned at least one waterspout around noon, local time.
While heat in the South during August is common, the upcoming weather pattern may deliver some of the hottest weather of this summer.
Monsoonal moisture from the tropics is bringing heavy rainfall to the Phoenix area and other parts of the Southwest.
A batch of showers and thunderstorms will slowly swing from the Midwest to the mid-Atlantic this week, raising flooding concerns in portions of the area.
Cutbank, MT (1992)
Temperature drops from 87 degrees to 49 degrees in 8 hours.
Houston, TX (1999)
105 degrees, new record for date.
New Jersey (1999)
A few waterspouts were spotted in Delaware Bay, and another at Cape May Point. A waterspout moved inland and became an F2 tornado injured one person in Holgate, New Jersey.