Major Flood
19 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
15 ft
Minor Flood
13 ft
Action Stage
12 ft
What Floods at Each Level
22 ft
Several homes in the San Antonio River flood plain south of IH-10 are flooded. Water is in the San Antonio Public Works Department motor pool parking lot and buildings.
20 ft
Flow is to the slab of the lowest homes along San Antonio River south of the IH-10 crossing and near the slab of the lowest buildings of the City of San Antonio Public Works Department motor pool and parking lot.
15 ft
Homes along Crofton Ave and Guenther Street, and parts of the G W Brackenridge High School property are threatened by flood waters. Moderate lowland flooding is several feet deep in low areas of the flood plain.
13 ft
Minor lowland flooding goes over banks into the flood plain including portions of Roosevelt Park.
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 |
|---|---|---|
| May 24, 2013 | 14.67 ft | 22,400 cfs |
| Jun 12, 2025 | 14.39 ft | 20,987 cfs |
| Jun 1, 2016 | 14.34 ft | 20,700 cfs |
About This Gauge
USGS Site
NWS LID
MTST2
River
San Antonio River
County
Bexar, TX
Coordinates
29.3928°N, 98.4944°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 at Mitchell Street?
The San Antonio River at Mitchell Street gauge is maintained by USGS (site 08178050) 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 at Mitchell Street?
The NWS-defined flood stage for San Antonio River at Mitchell Street is 13 feet. Action stage begins at 12 feet. Moderate flooding starts at 15 feet, and major flooding at 19 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 at Mitchell Street 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 at Mitchell Street gauge located?
The gauge is located in Bexar County, Texas at coordinates 29.3928°N, 98.4944°W. USGS site number: 08178050. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey