Haboob

This went through my neck of the woods last night.

Strangely Facinating

and

Spectacular

and 

Scary

at the same time. 

{pictures taken by Mark J. Rebilas / US Presswire }
Haboob: 

 strong wind associated with large sandstorms and duststorms and may be accompanied by thunderstorms. It usually lasts about three hours, is most common during the summer, and may blow from any direction. A haboob may transport huge quantities of sand or dust, which move as a dense wall that can reach a height of 900 metres (about 3,000 feet). The term haboob is taken from the Arabic word habb meaning wind.