Monsoon storms bring rain, outages and travel hazards across the Valley
Monsoon storms moved into the Phoenix area, delivering measurable rain and creating travel troubles as they moved through the region. Sky Harbor International Airport reported measurable rainfall for the first time since July 2, with about 0.04 inches recorded today. For the 2025 monsoon season, the airport has totaled around 0.20 inches, still well below normal.
The bursts of rain dumped a lot of water in a short period, leading to standing water on Interstate 17 in central Phoenix and on the Glendale Avenue off-ramp from southbound I-17. At the height of the storm, more than 20,000 customers lost power, affecting utilities in the area.
Strong winds were also a threat, with Phoenix Sky Harbor reporting gusts near 70 mph around 8:15 p.m. The storms spread moisture to several communities, with Gold Canyon receiving about 0.71 inches of rain, Mesa more than a half-inch, Tempe around 0.16 inches, and Ahwatukee about 0.39 inches. The system marched from the Mogollon Rim toward Apache Junction, Mesa and Chandler, and a dust cloud appeared in the southeast Valley around 6:30 p.m.
A blowing dust advisory remained in effect until 9 p.m. between Phoenix and Tucson, and travelers on I-10 were cautioned that the atmosphere could generate significant rain in the corridor south of the Valley, creating additional travel difficulties.
Despite the rain, above-average daytime highs are keeping the metro area in the major or high heat risk category through Sunday night, prompting the extension of First Alert Weather Days. Some hiking trails will stay closed, and outdoor sports are expected to be impacted by the heat.
Temperatures are expected to cool back toward normal by Monday, bringing a return of widespread moderate heat risk across the region.
What this means for you
– Expect localized flooding and ponding on roadways where heavy rain falls, especially on I-17 and near the Glendale Avenue off-ramp.
– Drive with caution in windy, dusty conditions; visibility can drop quickly.
– Check road conditions before travel on I-10 and surrounding routes; dust and storms can disrupt traffic.
– Stay hydrated and plan for heat when outdoors; heat-related risks will linger even as temperatures ease Monday.
Summary
The recent monsoon activity delivered much-needed moisture to parts of the Valley while also causing power outages, strong winds, and travel hazards. The weather pattern will keep us hot through the weekend, with a gradual cooldown expected beginning Monday, as drivers stay alert to changing conditions and officials monitor ongoing power and road issues.
Note: If you have photos or video from the storms, consider sharing them to help illustrate the impact on roadways and power outages.