San Antonio Rv near Falls City, TX
USGS Site No: 08183500 • San Antonio River • Karnes County, TX
San Antonio Rv near Falls City, TX on the San Antonio River is currently at 1,170 cfs (High — 82th percentile for this date) . Gage height: 2.74 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 97 | |
| 25th | Low threshold | 132 | |
| 50th (Median) | Normal (median) | 252 | |
| 75th | High threshold | 466 | |
| 95th | Very High threshold | 2,540 | Today: 1,170 cfs |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 2,310 | 4.28 |
| May 27, 2026 | 706 | 2.00 |
| May 26, 2026 | 856 | 2.24 |
| May 25, 2026 | 2,130 | 4.04 |
| May 24, 2026 | 2,200 | 4.13 |
| May 23, 2026 | 2,060 | 3.95 |
| May 22, 2026 | 1,510 | 3.21 |
| May 21, 2026 | 1,260 | 2.77 |
| May 20, 2026 | 405 | 1.44 |
| May 19, 2026 | 252 | 1.09 |
| May 18, 2026 | 226 | 1.02 |
| May 17, 2026 | 242 | 1.06 |
| May 16, 2026 | 264 | 1.12 |
| May 15, 2026 | 286 | 1.18 |
| Apr 20, 2026 | 281 | 1.16 |
| Apr 19, 2026 | 249 | 1.08 |
| Apr 18, 2026 | 248 | 1.08 |
| Apr 17, 2026 | 257 | 1.10 |
| Apr 16, 2026 | 275 | 1.15 |
| Apr 15, 2026 | 290 | 1.19 |
| Apr 14, 2026 | 272 | 1.14 |
| Apr 13, 2026 | 195 | 0.93 |
| Apr 12, 2026 | 206 | 0.96 |
| Apr 11, 2026 | 202 | 0.95 |
| Apr 10, 2026 | 219 | 1.00 |
| Apr 9, 2026 | 222 | 1.01 |
| Apr 8, 2026 | 223 | 1.01 |
| Apr 7, 2026 | 253 | 1.09 |
| Apr 6, 2026 | 318 | 1.24 |
| Apr 5, 2026 | 182 | 0.89 |
Station Information
- USGS Site No
- 08183500
- State
- TX
- County
- Karnes County
- Coordinates
- 28.9516, -98.0642
- Drainage Area
- 2,113 mi²
- Datum (ft)
- 285.3
- HUC Code
- 12100303
Flood Stage Thresholds
- Action Stage
- 6.0 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 16.0 ft
- Major Flood
- 20.0 ft
Currently 9.26 ft below flood stage.
Recent Extremes
- Max discharge
-
4,150 cfsJun 14, 2025
- Min discharge
-
85 cfsSep 28, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Cibolo Ck near Falls City, TXHigh9.2 mi · 237 cfs
-
San Antonio Rv near Floresville, TXHigh12.8 mi · 734 cfs
-
Escondido Ck at Kenedy, TXHigh15.4 mi · 10 cfs
-
Atascosa Rv near Mccoy, TXHigh17.6 mi · 39 cfs
-
Ecleto Ck near Runge, TXHigh17.8 mi · 37 cfs