San Antonio, December 17, 2025
Severe storms are forecasted to hit San Antonio and nearby areas, bringing heavy rainfall, strong winds, and flash flooding risks. Residents are advised to secure properties and stay updated through local weather services. The National Weather Service has issued warnings for severe thunderstorms and flash flooding, urging immediate action for safety. Historical flooding in the area emphasizes the need for preparedness.
San Antonio, Texas
Severe storms sweeping across Texas are expected to impact San Antonio and surrounding towns in the coming days, bringing heavy rainfall, strong winds, and potential flash flooding.
Storm Forecast and Warnings
The National Weather Service has issued a severe thunderstorm watch for areas east of U.S. Highway 281, including parts of San Antonio, effective from 9 p.m. to 3 a.m. tonight. Residents should anticipate damaging winds, large hail, and the possibility of flash flooding. A flash flood warning is also in effect for Val Verde County, urging immediate action to protect life and property.
Potential Impacts
Heavy rainfall is expected to lead to rapid water accumulation, especially in low-lying areas and regions prone to flash flooding. Drivers are advised to exercise caution, avoid low-water crossings, and stay informed through local weather updates. The combination of strong winds and hail may cause property damage, downed trees, and power outages.
Historical Context
San Antonio and the surrounding Hill Country region, often referred to as “Flash Flood Alley,” have a history of severe flooding events. Notably, in June 2025, the area experienced significant flash flooding that resulted in multiple fatalities and extensive property damage. The region’s unique topography, characterized by steep hills and shallow rivers, contributes to the rapid onset of flash floods during heavy rainstorms.
Safety Precautions
Residents are urged to stay vigilant and prepared. Ensure that emergency kits are accessible, secure outdoor objects that could become projectiles, and have a plan in place for evacuation if necessary. Stay tuned to local news and weather channels for the latest updates and heed any advisories or warnings issued by local authorities.
Additional Resources
For more information on severe weather preparedness and real-time updates, visit the National Weather Service’s website or follow local news outlets. Remember, your safety is paramount; take all necessary precautions to protect yourself and your loved ones during severe weather events.
Frequently Asked Questions (FAQ)
What areas are under a severe thunderstorm watch?
A severe thunderstorm watch is in effect for areas east of U.S. Highway 281, including parts of San Antonio, from 9 p.m. to 3 a.m. tonight.
What should residents do to prepare for the storms?
Residents should secure outdoor objects, ensure emergency kits are accessible, and stay informed through local weather updates. Avoid low-water crossings and have an evacuation plan in place if necessary.
Why is the San Antonio area prone to flash flooding?
The region’s unique topography, characterized by steep hills and shallow rivers, contributes to the rapid onset of flash floods during heavy rainstorms, earning it the nickname “Flash Flood Alley.”
How can I stay updated on weather conditions?
Stay tuned to local news and weather channels for the latest updates and heed any advisories or warnings issued by local authorities. For more information, visit the National Weather Service’s website.
Key Features of the Storms Impacting San Antonio
| Feature | Description |
|---|---|
| Severe Thunderstorm Watch | In effect for areas east of U.S. Highway 281, including parts of San Antonio, from 9 p.m. to 3 a.m. tonight, with potential for damaging winds, large hail, and flash flooding. |
| Flash Flood Warning | Issued for Val Verde County, urging immediate action to protect life and property due to expected rapid water accumulation. |
| Historical Flooding | San Antonio and the Hill Country region, known as “Flash Flood Alley,” have a history of severe flooding events, including significant flash flooding in June 2025 that resulted in multiple fatalities and extensive property damage. |
| Safety Precautions | Residents are advised to secure outdoor objects, ensure emergency kits are accessible, stay informed through local weather updates, avoid low-water crossings, and have an evacuation plan in place if necessary. |
Deeper Dive: News & Info About This Topic
HERE Resources
Triumph Returns to San Antonio for 50th Anniversary Tour
San Antonio’s Winter Events: Celebrate December and January
San Antonio Prepares for Significant Temperature Drop
Flash Flood Warning Issued for Eastern Willacy County, Texas
San Antonio Proposes $2.6 Million for Traffic Monitoring Cameras
Inaugural San Antonio Marathon to Cause Extensive Road Closures
San Antonio Drivers Prepare for Loop 1604 and I-10 Closures
Federal Judge Orders Removal of Ten Commandments Displays in Texas Schools
Kerr County Rejects State Flood Relief Amid Ongoing Flooding
San Antonio Marathon: Road Closures and Transportation Updates
Author: STAFF HERE SAN ANTONIO WRITER
The SAN ANTONIO STAFF WRITER represents the experienced team at HERESanAntonio.com, your go-to source for actionable local news and information in San Antonio, Bexar County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as Fiesta San Antonio, San Antonio Stock Show & Rodeo, and Dia de los Muertos. Our coverage extends to key organizations like the Greater San Antonio Chamber of Commerce and United Way of San Antonio and Bexar County, plus leading businesses in retail, insurance, and energy that power the local economy such as H-E-B, USAA, and Valero Energy. As part of the broader HERE network, including HEREAustinTX.com, HERECollegeStation.com, HEREDallas.com, and HEREHouston.com, we provide comprehensive, credible insights into Texas's dynamic landscape.
