Heavy rain swept through San Antonio and the surrounding Hill Country on Thursday, October 1, 2026. The storm triggered significant flooding, hazardous road conditions, and widespread closures. Local authorities and emergency management teams issued urgent warnings as the powerful storm system impacted the region.
The National Weather Service issued a Flash Flood Watch for the region effective through Friday. Officials warned residents of the potential for life-threatening conditions. Rainfall totals are generally expected to range from one to four inches. Isolated areas could receive between six and eight inches of rain, according to UT San Antonio officials.
Road Closures and Hazard Areas
Rising water levels at low-water crossings and drainage trouble spots forced transportation departments to block off major thoroughfares. As of Thursday afternoon, 17 specific roads across San Antonio were officially reported closed due to high water:
- Southwell
- Sleepy Hollow
- Sidney Brooks 1
- Schertz
- Rodriguez
- Old O’Conner
- Old Corpus Christi
- Old Blanco Road
- Mission Parkway
- Maltsberger Lane
- East Castle Lane
- North Loop Road
- Danville
- Contour Drive
- Comanche Cross
- Cave Lane
- Blakeley
In the neighboring Hill Country, the Kerrville Police Department reported shifting conditions. Officials noted that most barricades were temporarily removed after water receded. Crews remain on standby to redeploy them if severe weather intensifies.
Campus and Community Safety Measures
Leadership at UT San Antonio announced they are closely monitoring live weather feeds and radar tracking. They aim to prioritize the safety of students, faculty, staff, and patients across all academic and healthcare campuses.
“Based on current forecasts, San Antonio and surrounding areas could experience periods of heavy rainfall and the potential for flash flooding over the next several days as a storm system moves through the region,” stated a UT San Antonio spokesperson.
University operations updates and safety alerts are being distributed through official campus communication channels and emergency text notification systems.
Preparation and Emergency Response
State and local transportation crews, including the Texas Department of Transportation (TxDOT), spent the 24 hours leading up to the storm preparing the area. They inspected drainage infrastructure, cleared debris from culverts, and staged warning signs and barricades. Emergency operations centers increased surveillance, keeping rescue trucks and response personnel ready to assist stranded motorists.
Local authorities emphasize a strict safety reminder for all drivers navigating South and Central Texas during the active weather advisory: Turn around, don’t drown. Motorists are urged to check real-time road monitoring maps, such as BexarFlood.org, before attempting to travel.
