Flash Flood Warning Issued for San Antonio: Key Safety Information
A flash flood warning has been issued for San Antonio following heavy rainfall of over 6.5 inches in just three hours. This severe weather has led to emergency road closures, ongoing water rescues, and localized evacuation efforts. Officials are drawing comparisons to the May 2023 floods, which caused 73 million dollars in damage. Residents living in high-risk areas should stay alert and follow safety protocols provided by local authorities.
Real-Time Risk and Affected Areas
As of 11:15 AM CDT, the National Weather Service reports that several parts of the city are under extreme or high threat levels. Downtown San Antonio has recorded 5.8 inches of rain, the Northwest Side has reached 7.1 inches, and Alamo Heights has received 4.3 inches. These areas are facing either extreme or high levels of risk due to water accumulation and runoff.
Infrastructure across the city has been impacted. Roads currently closed include I-10 at Huebner, US-281 at Bitters, and Loop 1604 at Bandera. Twelve active water rescues have been reported near Leon Creek, and over 14,000 CPS Energy customers are currently experiencing power outages.
Weather Factors Contributing to the Warning
The flash flood warning has been triggered by several meteorological conditions. These include repeated thunderstorms tracking over the same areas, known as training storms, and fully saturated soil that is no longer absorbing additional rainfall. Flood-prone areas such as the Medina River and Olmos Basin are nearing or exceeding their capacity. The Medina River is currently two feet above flood stage and the Olmos Basin is at 90 percent of its reservoir capacity.
In comparison, the May 2023 flood event brought in 9.2 inches of rainfall and caused significant infrastructure damage. The current event has so far produced 6.5 inches, with projections suggesting more than 10 inches by the end of the day.
Immediate Safety and Evacuation Protocols
Residents are advised not to drive through flooded streets, as just 12 inches of water can stall most vehicles and pose serious risk. Those living in flood-prone areas should register for real-time alerts by texting SAFLOOD to 888-777. A go-bag should be prepared with essential items such as medications, important documents, and supplies for pets.
If water is entering the basement or lower floors of a home, it is critical to shut off power at the circuit breaker to prevent electrical hazards. Residents should monitor local radio updates on KENS 5 at 94.1 FM for ongoing developments.
For those needing shelter, the Freeman Coliseum (Gate 5) and the Alzafar Shrine Temple have been designated as emergency shelter locations by the city.
Infrastructure and Flood Channel Status
Several key flood channels are approaching dangerous water levels. Salado Creek is expected to crest at 22.3 feet, impacting neighborhoods such as Camelot II and Walzem. San Pedro Creek is projected to reach 18.7 feet, affecting Tobin Hill and Dignowity. Leon Creek may rise to 26.1 feet, posing a risk to areas around SeaWorld and Inwood.
Drainage systems in various parts of the city are under strain. The downtown flood tunnels are currently 78 percent full and showing signs of being overwhelmed. Westside creek systems are at 91 percent capacity, while retention systems in the northern parts of the city remain relatively stable at 65 percent.
Long-Term Outlook and Mitigation Projects
According to data from the National Oceanic and Atmospheric Administration, flash flood events in San Antonio have increased by 42 percent since 2015. The area covered by the 100-year floodplain has grown to include approximately 19 percent of the city.
Several infrastructure projects are underway to improve future flood resilience. The San Pedro Creek project is scheduled for completion in 2026 and will protect around 50,000 residents. The Westside Creeks project, expected to be completed by 2027, will provide protection for an additional 32,000 people. Mission Reach is projected to finish in 2028 and will benefit 28,000 residents.
Conclusion
San Antonio residents are strongly encouraged to remain alert and follow official guidance. Avoid driving through flooded areas, obey evacuation orders if issued, and stay informed through local news outlets and official weather channels. Real-time updates can be monitored via the National Weather Service and KENS 5 Radio. Taking action early can prevent injury and save lives.
