Heavy rain and slow-moving thunderstorms prompted the National Weather Service (NWS) to issue a Flash Flood Warning for parts of the San Antonio metropolitan area on Saturday, triggering Wireless Emergency Alerts as dangerous flooding developed across portions of Bexar County.
The warning covers areas in and around western and northwestern Bexar County, where intense thunderstorms have produced rainfall rates of 1 to 3 inches per hour, with additional heavy rain expected. Forecasters warned that rapidly rising water could create life-threatening conditions on roads, low-water crossings, creeks, and urban streets.
Residents in the affected areas received emergency alerts on their mobile devices advising them to avoid unnecessary travel and move to higher ground if flooding develops. The National Weather Service stressed that motorists should “Turn Around, Don’t Drown,” emphasizing that even a small amount of moving water can sweep away vehicles.
Emergency officials warned that travel is strongly discouraged while the Flash Flood Warning remains in effect. Flood-prone neighborhoods, underpasses, creeks, and low-lying roads are considered especially vulnerable as additional thunderstorms continue to develop across South Central Texas. Authorities are closely monitoring weather conditions and stand ready to respond to any water rescues or road closures if conditions worsen.
Meteorologists expect scattered thunderstorms to continue through the afternoon and into the weekend, with localized rainfall totals exceeding 3 inches in some locations. While not every community will experience flooding, any storm that stalls over one area could quickly overwhelm drainage systems and cause flash flooding with little warning.
Residents are encouraged to monitor official weather updates, avoid flooded roadways, and be prepared for changing conditions. Anyone living in flood-prone areas should have a plan to move to higher ground if rising water threatens their safety.
Why Were Emergency Alerts Issued?
The National Weather Service issued a Flash Flood Warning after heavy rainfall created the potential for life-threatening flooding across parts of the San Antonio area. Wireless Emergency Alerts were sent to notify residents of the immediate danger.
Which Areas Are Most at Risk?
The greatest threat is in western and northwestern Bexar County, including low-water crossings, creeks, urban streets, and other flood-prone locations where water can rise rapidly.
Safety Tips During Flash Flooding
Officials advise residents to avoid driving through floodwaters, stay informed through National Weather Service updates, and move to higher ground if flooding occurs. Travel should only be attempted if absolutely necessary.
Disclaimer: This is a developing weather story. Flash flood warnings and emergency conditions may change rapidly as additional rainfall moves through the San Antonio area. Please follow official guidance from local authorities and the National Weather Service for the latest confirmed updates.