ENVIRONMENT

San Antonio flash floods trigger rescues, major road closures

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San Antonio and surrounding areas in South Texas experienced significant flash flooding beginning overnight on June 20, 2026, prompting multiple water rescues and widespread road closures. Medina County Fire/EMS deployed teams through the morning to assist motorists trapped in rapidly rising water, with photos showing partially submerged vehicles. As of 6 a.m., officials reported serious flooding at FM 471 from San Geronimo Creek overflow. By 10 a.m., the Bexar Flood Operations Center listed 21 closures among 196 monitored crossings. Authorities urged residents to avoid travel, follow “Turn Around, Don’t Drown” guidance, and stay off roads until waters recede and infrastructure can be evaluated.

Prepared by Olivia Bennett and reviewed by editorial team.

Timeline of Events

Overnight June 20, 2026 Flash flooding begins around San Antonio
Early morning June 20 Emergency crews launch water rescues
6 a.m. June 20 FM 471 threatened by San Geronimo Creek
Morning June 20 Photos show vehicles partially submerged
Morning June 20 Bexar County sheriff issues travel warnings
10 a.m. June 20 Flood Center reports twenty-one closures
Later June 20 National Weather Service monitors additional rainfall
Remainder of day Residents urged to stay off roads

Why This Matters to You

Flash floods can strike fast, especially in South Texas. Safety is paramount. Check your local weather report and heed travel warnings. "Turn Around, Don’t Drown" isn't just a catchy phrase—it's life-saving advice.

The Bottom Line

San Antonio is grappling with serious flash flooding. Road closures and rescues are ongoing. Until waters recede and roads are deemed safe, stay put. It's a good time to review your family's emergency plan. Worth forwarding if you know someone in the area.