CASA GRANDE, Ariz. —
“That area of I-10 is historically known for these blowing dust storms that come through,” Cook said. “At the time of this crash, there were reports that there was zero visibility in the road, and with these dynamic systems that come through so quickly, people are often surprised by it.”
The National Weather Service had issued a blowing dust advisory shortly before the crashes, with wind gusts of up to 30 mph reported in the area.
“A steady southwest wind created channels of dense, blowing dust,” weather service meteorologist Chris Dunn told KPHO. “Unfortunately, one of those localized channels of dust ended up over a busy Arizona interstate.”
DPS spokesman Bart Graves said Tuesday’s crash was one of the worst chain-reaction accidents in that area in the past seven years.
Parts of westbound I-10 were closed for more than five hours.