Flash Floods Slam Metro Phoenix: Power Outages, Road Closures, and Airport Ground Stop

Late Friday afternoon the sky over the Phoenix metro area turned an ominous shade of gray. The National Weather Service slapped a flash‑flood warning on Maricopa County, and by early evening it felt like the whole valley was holding its breath.

Thunderstorms roared in, unloading more than two inches of rain on east Mesa and north Scottsdale in just a few hours. In some pockets—near Thunder Mountain—rain totals nudged four inches. The deluge turned streets into rivers, swamped underpasses and left a few low‑lying neighborhoods under several feet of water.

Power lines didn’t fare any better. Hundreds of Salt River Project customers reported outages in Glendale, east Mesa and Gilbert, while Arizona Public Service listed a handful of homes without electricity near 6 p.m. SRP confirmed the outages were weather‑related and crews were already out on the streets trying to get the lights back on.

Driving turned into a gamble. One Mesa fire unit had to pull an adult driver out of a car stuck in standing water on Higley Road around 1:30 p.m. The driver was fine, but the incident underscored the old warning: “If you see water covering the road, turn around.” Most flood‑related deaths happen when vehicles are swept away.

Because the rain was so intense, the Federal Aviation Administration issued a temporary ground stop at Phoenix Sky Harbor International Airport. Flights were delayed, and passengers were asked to stay patient while pilots waited for the runway to clear.

The National Weather Service announced around 3:45 p.m. that the main downpour had largely subsided, but they cautioned motorists to stay alert for lingering road closures and high water levels in the region’s many washes and canals—Cave Creek, Beardsley Canal, Agua Fria River, Deadman Wash, Skunk Creek, New River, North Canyon Creek and Apache Wash all remained at elevated levels.

Schools felt the impact, too. Mesa Community College at Red Mountain shut its doors for the day, citing safety concerns from the flooding. Meanwhile, the Maricopa County Flood Control District’s rainfall map showed a stark contrast: the East Valley, especially Mesa and north Scottsdale, was drenched, whereas Tempe, Chandler and Gilbert saw barely a drizzle, and the West Valley recorded less than an inch.

City officials moved quickly to help residents protect their homes. Sandbags were made available at a public works lot near Edison Road and Estrella Parkway, with the Maricopa Police Department posting the locations on X. The city’s website also listed additional pick‑up spots for sand and pre‑filled bags.

Roads around Mesa took a beating. Brown Road was closed west of Power Road, and northbound lanes on University Drive were shut down. Officials urged anyone needing assistance to call the traffic‑help line at 480‑644‑2160, though it wasn’t clear when the closures would be lifted.

Further north, Coconino County was not spared. Thunderstorms dropped roughly 1.5 inches of rain over the scar left by the Pocket Fire, seven miles north of Sedona. The Weather Service warned of possible flash floods and debris flows in dry‑river canyons like Dry Creek, Secret Canyon and the West Fork of Oak Creek, urging hikers and campers to head for higher ground immediately.

All told, the day reminded Arizonans that monsoon season can turn from a summer ritual into a life‑threatening event in the space of a few hours. As crews continue to clear roads, restore power and monitor water levels, officials ask residents to stay tuned to local alerts, avoid flooded roads and be ready to act quickly if conditions worsen.