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Flash Flood Warning Issued for Comal, Guadalupe, and Bexar Counties
about 2 months agoUS
The National Weather Service has issued a flash flood warning for southeastern Comal County, northeastern Bexar County, and west-central Guadalupe County, Texas. This warning is in effect until 5 p.m. CDT on Monday, April 20, 2026. Residents in these areas should be prepared for heavy rainfall and potential flash flooding.
Key Insights
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The National Weather Service issued a flash flood warning until 5 p.m. CDT on April 20, 2026.
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Affected areas include southeastern Comal County, northeastern Bexar County, and west-central Guadalupe County.
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Doppler radar and rain gauges indicate thunderstorms producing heavy rain, with 1-3 inches already fallen.
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An additional 1-2 inches of rain is possible.
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Life-threatening flash flooding is possible in creeks, streams, urban areas, highways, streets, and underpasses.
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Areas that will experience flash flooding include San Antonio, New Braunfels, Schertz, Cibolo, Converse, McQueeney, Bulverde, Garden Ridge, and Live Oak.
Why this matters: Flash floods can occur rapidly and with little warning, posing a significant threat to life and property. Residents need to stay informed and take necessary precautions to avoid flooded areas.
In-Depth Analysis
The flash flood warning is a result of thunderstorms producing heavy rainfall across portions of Comal, Guadalupe, and Bexar counties. Doppler radar and automated rain gauges confirm that between one and three inches of rain have already fallen, and an additional one to two inches are possible. This heavy rainfall can quickly overwhelm drainage systems, leading to flash flooding in various areas.
Specific locations that are likely to experience flash flooding include major cities and towns such as San Antonio, New Braunfels, Schertz and Cibolo. The warning emphasizes that low-lying areas such as creeks, streams, urban zones, highways, streets, and underpasses are particularly susceptible. Drivers are cautioned to avoid flooded roads, as most flood-related deaths occur in vehicles. The Guadalupe River is especially prone to flooding. Remember: Turn around, don’t drown!
How to Prepare:
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Monitor local weather reports and heed warnings from the National Weather Service.
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Avoid travel in affected areas if possible.
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If you must drive, use caution and be prepared to turn around if you encounter flooded roads.
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Move to higher ground if flooding occurs in your area.
Who This Affects Most:
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Residents in low-lying areas and near waterways.
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Drivers, especially during commute times.
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Individuals living in the cities of San Antonio, New Braunfels, Schertz, and surrounding areas.
FAQs
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Q: What should I do if I encounter a flooded road?
Turn around and find an alternate route. Do not attempt to drive through floodwaters.
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Q: How can I stay informed about the flash flood warning?
Monitor local news, weather reports, and the National Weather Service for updates.
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Q: What areas are most at risk for flash flooding?
Creeks, streams, urban areas, highways, streets, and underpasses are particularly susceptible.
Key Takeaways
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A flash flood warning is in effect for Comal, Guadalupe, and Bexar counties until 5 p.m. CDT on April 20, 2026.
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Heavy rainfall is expected to cause life-threatening flash flooding.
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Avoid travel in affected areas and never drive through flooded roads.
Discussion
Do you have any experiences with flash floods in this area? Share your thoughts and preparedness tips in the comments below!
Share this article with others who need to stay ahead of this trend!
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