A Severe Flash Flood Warning is in effect for Bexar County, Texas, until 6:00 PM CDT on July 11, 2026. The alert was issued by the National Weather Service in Austin/San Antonio.

The warning covers northwestern Bexar County. Doppler radar indicates thunderstorms producing heavy rain, with 1 to 2 inches of rain already fallen. Additional rainfall amounts of 1 to 3 inches are possible. Flash flooding is ongoing or expected to begin shortly.

A Flash Flood Warning indicates that flooding is imminent or occurring. Life-threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses may occur. Areas that may experience flash flooding include San Antonio, Leon Valley, Helotes, and surrounding communities.

In case of an emergency, dial 911. Follow the guidance of the National Weather Service and local authorities. To stay safe, turn around and do not drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and avoid driving on flooded roads.