San Antonio River near Falls City
Texas — Water Level & Flood Stage
Located in Karnes County, Texas on the San Antonio River. Live water level data from USGS gauge 08183500, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
20 ft
Moderate Flood
16 ft
Minor Flood
12 ft
Action Stage
6 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
37 ft
Twenty to thirty homes in Falls City are flooded. Major flooding severely damages oil field tank batteries and pump jacks, irrigation pumps, crops and pastureland. Hundreds of livestock can be isolated and drowned. Roads and bridges are severely flooded and dangerous to motorists.
35 ft
Ten to fifteen homes in Falls City are flooded. Major flooding severely damages oil field tank batteries and pump jacks, irrigation pumps, crops and pastureland. Hundreds of livestock can be isolated and drowned. Roads and bridges are severely flooded and dangerous to motorists.
32 ft
Major flooding severely damages oil field tank batteries and pump jacks, irrigation pumps, crops and pastureland. Hundreds of livestock can be isolated and drowned. Roads and bridges are severely flooded and dangerous to motorists. Six homes in Falls City are flooded up to four feet.
28 ft
Major floodng severely damages oil field pump jacks and tank batteries, irrigation pumps, crops and pastureland and can isolate and drown hundreds of livestock in the flood plain. Lowest homes in the flood plain in Falls City are threatened.
24 ft
There is major lowland flooding of crop and pasture land below San Antonio to the Guadalupe River confluence. Livestock in flood prone areas are cut off and potentially drowned. Irrigation pumps and equipment flood severely. Nearly all of Goliad State Park downstream is under water. The levee system downstream near the confluence of the San Antonio and Guadalupe Rivers is threatened.
20 ft
Major flooding damages crop and pastureland, irrigation pumps, oil field pump jacks and any equipment in the flood plain. Livestock in flood prone areas are cut off and potentially drowned. Secondary roads and low bridges are flooded near the river and very dangerous.
16 ft
Flooding significantly damages irrigation pumps, oil field pump jacks and tank batteries and equipment. Livestock in flood prone areas are cut off and potentially drowned. There is significant damage to crop lands in season.
12 ft
Minor lowland flooding above Falls City to above Goliad floods irrigation pumps, equipment, crops and pastureland. Livestock can be cut off in low areas of the flood plain.
10 ft
Overbank conditions extend into low areas of the flood plain with no significant damage.
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 |
|---|---|---|
| Jul 5, 2002 | 38.43 ft | — |
| Jul 5, 2002 | 38.43 ft | — |
| Sep 28, 1946 | 33.8 ft | 47,400 cfs |
| Sep 28, 1946 | 33.8 ft | 47,400 cfs |
| Oct 19, 1998 | 33.6 ft | 70,000 cfs |
About This Gauge
USGS Site
NWS LID
FACT2
River
San Antonio River
County
Karnes, TX
Coordinates
28.9514°N, 98.0639°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 Falls City?
The San Antonio River near Falls City gauge is maintained by USGS (site 08183500) 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 Falls City?
The NWS-defined flood stage for San Antonio River near Falls City is 12 feet. Action stage begins at 6 feet. Moderate flooding starts at 16 feet, and major flooding at 20 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 Falls City to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the San Antonio River near Falls City gauge located?
The gauge is located in Karnes County, Texas at coordinates 28.9514°N, 98.0639°W. USGS site number: 08183500. Data is provided by the U.S. Geological Survey and the National Weather Service.
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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.