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Power Outage Los Angeles: Storm Knocks Out Traffic Signals, Hits Glendale and Arcadia

By CALWIRE Weather Desk — Monday, September 7, 2026
By CALWIRE Weather Desk  |  PUBLISHED: Monday, September 7, 2026
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Power Outage Resources

Power is out across multiple Los Angeles-area communities right now as a storm pushes through SoCal, knocking out traffic signals and leaving thousands of residents in the dark. This is a developing situation and details are still coming in.

Related: Microsoft Outlook Down in California: Exchange Online Outage Hits During Work Hours · EXTRICATION UNDERWAY AFTER TRAFFIC COLLISION IN LOS ANGELES

Glendale is among the hardest-hit spots, with thousands losing power as showers moved through the region, according to ABC7 Los Angeles. Large portions of Arcadia are also affected, per early reports from ColoradoBoulevard.net. And it's not just the lights - KTLA reports that traffic signals are going dark and police phone lines have been disrupted amid the outages.

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If you're driving anywhere in the LA area right now, treat every dark signal as a four-way stop. Conditions on the road could be worse than usual with the combo of wet weather and dead lights.

Where Are the Outages?

Confirmed impact areas so far include Glendale and Arcadia. The outages appear tied to the active storm system sweeping through Southern California. It's not yet clear exactly how many customers are without power across all affected communities, and that number could grow as the weather continues.

See also: EXTRICATION UNDERWAY AFTER TRAFFIC COLLISION IN NORTH LOS ANGELES · Tropical Storm Lala Hits Hawaii: What California Travelers Need to Know

What's Being Disrupted

Beyond residential power loss, the outages are hitting infrastructure hard. Traffic signals going down during rainy conditions is a serious safety concern, and reports of disrupted police lines add another layer of urgency. Avoid non-essential travel if you can, and stay off the roads in affected neighborhoods until signals are back up.

What to Do Right Now

Check your local utility's outage map for the latest. If you see a darkened intersection, stop and treat it as a four-way stop regardless of what other drivers are doing. Keep an eye on KTLA and ABC7 for updates as crews work to restore power. This story is developing and details will change.

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Filed Under: Weather Power Outage Los Angeles