A massive wall of dust swept through Phoenix, plunging the southwest US city into near-total darkness, grounding flights, forcing motorists off the road and cutting power to thousands.
The giant haboob, which occurred on Monday, is a common phenomenon during the arid region’s monsoon season.
Haboobs form when a thunderstorm collapses, sending cold air crashing onto the desert floor, where it scoops up dust into a towering wall of sediment that can stretch for miles and rise thousands of feet…