A powerful wall of dust and severe thunderstorm activity moved through the greater Phoenix area on Wednesday evening, knocking out power for tens of thousands of residents and creating dangerous driving conditions across multiple communities. The storm arrived at a moment when the region is already contending with an extreme heat warning expected to stretch into Sunday, compounding the challenges facing residents and emergency crews throughout the Valley.
The system developed from a surge of moisture pushing north out of the Gulf of California into southwestern and central Arizona, a pattern that has been feeding an uptick in monsoon activity statewide. The dust wall reached the Valley around 9:30 in the evening, with the National Weather Service issuing advisories covering several communities including Buckeye, Avondale, South Mountain, Ahwatukee and the Southeast Valley stretching toward Queen Creek.
Thousands left without power across two counties
The storm’s most immediate impact was felt in the form of widespread power outages. By late evening, one utility provider reported approximately 17,000 customers without service in Maricopa County and more than 1,000 in Pinal County. A second provider reported nearly 3,000 additional outages in Maricopa County. Crews were working to assess the scope of the damage as the system continued moving through the region.
In Gilbert, local authorities reported that the storm brought down trees and scattered debris across roadways, creating unsafe driving conditions that prompted warnings for residents to stay off the streets. The storm’s track carried it westward toward Peoria, Surprise and Sun City later in the evening, putting those communities on notice for high winds and the possibility of hail.
Dust storm warning issued for East Valley
Earlier in the evening, federal meteorologists issued a specific dust storm warning for Queen Creek and parts of Pinal County, where the wall of dust was reported to be moving northwest at approximately 25 miles per hour. Visibility in affected areas dropped to as low as a quarter mile, creating hazardous conditions for anyone on the road…