Overview

• Originating near Casa Grande and Eloy, a fast-moving wall of dust raced into metro Phoenix on Monday, slashing visibility to near zero as the National Weather Service issued dust storm and severe thunderstorm warnings.
• Phoenix Sky Harbor imposed a brief ground stop before reopening with 15–30 minute delays as crews addressed roof leaks and other damage, including a shredded connector bridge reported by officials.
• Power outages varied widely across trackers, with peaks reported from roughly 15,000 to more than 60,000 customers, and totals dropping to about 5,000 by early Tuesday as utilities worked to restore service.
• Strong outflow winds up to 70 mph toppled trees, knocked out traffic signals in communities such as Gilbert, and contributed to flooding and partial highway closures as flash flood warnings followed the dust wall.
• Forecasters expect isolated thunderstorms to linger through midweek before conditions dry out, and transportation officials reiterated the 'Pull Aside, Stay Alive' guidance for drivers caught in blowing dust.