Summary (tl;dr)

San Antonio is experiencing widespread power outages, affecting over 100,000 CPS Energy customers, due to severe thunderstorms that brought heavy rain, lightning, and strong winds to the region over the past two days.

Essential Background

CPS Energy is San Antonio's municipally owned electric and gas utility, serving a vast territory including Bexar County and surrounding areas. The region has been experiencing a punishing stretch of heat, with temperatures recently reaching over 100 degrees Fahrenheit. Texas's power grid has also experienced vulnerabilities in the past, with previous severe weather events causing significant outages.

The Full Story

Severe thunderstorms, characterized by heavy downpours, lightning, and wind gusts exceeding 60 mph, swept through San Antonio, Texas, on Friday night, August 28, 2026, and also on Thursday, August 27, 2026, leading to extensive power disruptions. CPS Energy, the local utility provider, reported over 100,000 customers without electricity at the peak of the outages on Friday night. At one point, 103,957 customers were without power due to 556 active outages. Hardest-hit areas included the Westside of the city, specifically ZIP code 78207 with over 15,000 residents affected, and also the far Northwest Side past Loop 410. The storms also prompted Flash Flood Warnings for northern Bexar County and caused numerous road closures due to flooding hazards. On Thursday, August 27, thousands of customers also lost power, predominantly on the far northwest side past Loop 410, and frequent lightning delayed the start of high school football games. As of early Saturday morning, August 29, 2026, over 90,000 customers were still without power.

Why It Matters

These widespread power outages significantly impact the daily lives of San Antonio residents, affecting safety, comfort, and potentially disrupting essential services. With search terms like "cps outage map" trending, it highlights the urgent need for real-time information and updates for those without power. The recurring vulnerability of the power grid to severe weather, even after investments in hardening it, raises ongoing concerns about infrastructure resilience in the face of increasingly intense weather patterns. The storms have also led to flash flooding and road closures, posing additional safety risks for the community.

Geographic Location

• San Antonio, Bexar County, Texas, United States (widespread power outages and flash flooding)
• Westside, San Antonio, Bexar County, Texas, United States (particularly ZIP code 78207, hard-hit by outages)
• Northwest Side, San Antonio, Bexar County, Texas, United States (areas past Loop 410, significantly affected by outages)