Major Flood
42 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
33 ft
Minor Flood
27 ft
Action Stage
21 ft
What Floods at Each Level
42 ft
The river goes over the bridge at County Road 117, and will cause County Road 127 to become flooded and impassable. Calaveras Creek will go over the bridge at County Road 128. Homes in low spots close to the San Antonio River may become threatened.
33 ft
Secondary roads near the floodplain may become flooded and impassable. Extensive flooding occurs in lowest portions of Floresville City Park.
27 ft
Floodwaters begin to impact lower portions of Floresville City Park.
21 ft
Water exceeds the lowest banks along the San Antonio River
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 4, 2016 | 38.11 ft | 19,389 cfs |
| Sep 27, 2016 | 33.46 ft | 14,768 cfs |
| Jun 14, 2025 | 30.65 ft | 8,580 cfs |
About This Gauge
USGS Site
NWS LID
FLVT2
River
San Antonio River
County
Wilson, TX
Coordinates
29.1100°N, 98.1744°W
Get Flood Alerts for San Antonio River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of San Antonio River near Floresville?
The San Antonio River near Floresville gauge is maintained by USGS (site 08183200) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for San Antonio River near Floresville?
The NWS-defined flood stage for San Antonio River near Floresville is 27 feet. Action stage begins at 21 feet. Moderate flooding starts at 33 feet, and major flooding at 42 feet.
How do I get alerts when San Antonio River rises?
Download StormCast free on Google Play, go to River Gauges, and add San Antonio River near Floresville to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the San Antonio River near Floresville gauge located?
The gauge is located in Wilson County, Texas at coordinates 29.1100°N, 98.1744°W. USGS site number: 08183200. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on San Antonio River
On This River
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.