Overview

• The National Weather Service issued dust storm, severe thunderstorm and flash flood warnings as a massive wall of dust swept into Maricopa County, collapsing visibility on I-10 and I-17 and prompting the ADOT 'Pull Aside, Stay Alive' guidance.
• Power outages peaked in the tens of thousands across Arizona, concentrated in the Phoenix area, with utilities reporting restorations underway after widespread wind damage.
• Phoenix Sky Harbor imposed a temporary ground stop before resuming operations with delays of roughly 15 to 30 minutes, while crews addressed leaks and other damage inside terminals.
• Severe thunderstorms trailed the dust storm, toppling trees and flooding roadways; wind gusts were reported up to about 70 mph with damage at the airport, including a connector bridge reported shredded.
• Forecasters called the pattern typical of the monsoon's hit‑and‑miss nature and kept a chance of additional storms Tuesday before a trend toward drier conditions later in the week.