Phoenix, September 27, 2025
News Summary
Phoenix faced severe thunderstorms causing significant travel disruptions and the cancellation of events, including the Arizona State Fair. Heavy rainfall led to flooding on freeways and delays at Sky Harbor Airport. Meteorologists reported over 2 inches of rain in some areas, with local authorities urging residents to stay cautious of flash flooding risks. Despite these conditions, no major damage was reported. The storms served as a reminder of the rapidly changing weather during the monsoon season.
Phoenix experienced severe monsoon thunderstorms on Friday, September 26, 2025, causing significant travel disruptions and cancelling several scheduled events in the area. Heavy rain began early in the morning and intensified throughout the day, leading to flooding on freeways, flight delays at Phoenix Sky Harbor International Airport, and the closure of the Arizona State Fair for the day.
The National Weather Service reported 1.11 inches of rain at Sky Harbor by early afternoon, surpassing the total rainfall accumulation for the entire monsoon season. By the end of the day, total rainfall in Phoenix had reached 2.02 inches. Rainfall varied across the metropolitan area, with Fountain Hills receiving over 2 inches while parts of the East Valley reported less than a tenth of an inch. Additionally, large hail measuring 1 to 1.5 inches was reported during the storms.
As a result of the severe weather conditions, local events faced major interruptions. The Arizona State Fair closed its gates for the day but offered free admission tickets for any day through October 26, valid from 5 p.m. to 11 p.m. In sports, a high school football game between ALA West Foothills and Arcadia High School was cancelled around 3:30 p.m., though dozens of other high school games scheduled for 7 p.m. remained unaffected. Furthermore, Arizona State University’s upcoming football game against TCU, broadcast on national television at 6 p.m., proceeded as planned, although the pre-game Sparky’s Tailgate event was cancelled due to weather concerns.
The heavy rainfall led to partial flooding of several freeways, prompting first responders to carry out multiple water rescues throughout the day. Conditions at Phoenix Sky Harbor International Airport were particularly affected, with the Federal Aviation Administration (FAA) issuing ground stops, which contributed to significant flight delays. Meteorologists anticipated rain would continue into the evening, with additional showers and storms possible overnight.
Weather experts noted that the severe thunderstorms were associated with a strong low-pressure system located off the Southern California coast. A flood watch remained in effect until 11 p.m. on Friday, and residents were advised to be cautious of rapidly changing conditions that could result in flash flooding.
Despite the adverse weather conditions, no major damages were reported across the Phoenix area. Meteorologists forecast that high temperatures in Phoenix would remain below normal, around 90 degrees, through the weekend, providing a brief respite from the typically hotter conditions experienced during the summer months.
As the monsoon season draws to a close on September 30, local authorities will continue to monitor weather conditions closely and provide updates as necessary. The unexpected nature of the storms served as a reminder for residents to stay alert to evolving weather patterns and heed safety advice.
FAQ
What caused the severe thunderstorms in Phoenix?
The severe thunderstorms were linked to a strong low-pressure system off the Southern California coast, contributing to heavy rainfall and adverse weather conditions in the Phoenix area.
What events were affected by the storms?
The Arizona State Fair was closed for the day, and a high school football game between ALA West Foothills and Arcadia High School was cancelled. Additionally, the Sparky’s Tailgate event before the ASU football game was also cancelled.
Were there any safety concerns reported?
Yes, first responders were involved in multiple water rescues due to flooding, and residents were advised to avoid dangerous road conditions as flash flooding was a concern.
What were the rainfall totals in Phoenix?
By early afternoon, the National Weather Service recorded 1.11 inches of rain at Phoenix Sky Harbor, with total season-to-date rainfall reaching 2.02 inches by the end of the day.
Key Features of the Event
| Feature | Description |
|---|---|
| Date | September 26, 2025 |
| Rainfall Total | 1.11 inches by 1:55 PM; 2.02 inches for the season |
| Main Affected Areas | Phoenix, Fountain Hills, East Valley |
| Significant Events Canceled | Arizona State Fair, High School Football Game |
| General Weather Conditions | Heavy rain, hail, lightning, and risk of flash flooding |
| Emergency Response | Multiple water rescues and safety advisories issued |
| Forecast Following Storm | Continued rain expected with below-normal temperatures |
Deeper Dive: News & Info About This Topic
HERE Resources
Over 30 Million Under Extreme Weather Alerts as Heat Wave Hits Western U.S.
Additional Resources
- Arizona Central: Rain Chances Increase in Phoenix
- AZ Family: Friday Night Events Impacted by Monsoon Storm
- Fox Weather: Arizona and Nevada Weather Alert
- Fox 10 Phoenix: Arizona Weather Forecast
- KTAR: Thunderstorms and Flooding in Phoenix
- Wikipedia: Monsoon
- Google Search: Phoenix Weather
- Google Scholar: Phoenix Flooding September 2025
- Encyclopedia Britannica: Flash Flood
- Google News: Phoenix Monsoon Storm
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