South Llano Rv at Flat Rock Ln at Junction, TX
USGS Site No: 08149900 • South Llano River • Kimble County, TX
South Llano Rv at Flat Rock Ln at Junction, TX on the South Llano River is currently at 98 cfs (Normal — 65th percentile for this date) . Gage height: 2.37 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 | 36 | |
| 25th | Low threshold | 42 | |
| 50th (Median) | Normal (median) | 76 | |
| 75th | High threshold | 113 | Today: 98 cfs |
| 95th | Very High threshold | 0 |
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 | 104 | 2.40 |
| May 27, 2026 | 108 | 2.42 |
| May 26, 2026 | 112 | 2.44 |
| May 25, 2026 | 114 | 2.45 |
| May 24, 2026 | 95 | 2.36 |
| May 23, 2026 | 92 | 2.34 |
| May 22, 2026 | 96 | 2.36 |
| May 21, 2026 | 106 | 2.41 |
| May 20, 2026 | 54 | 2.16 |
| May 19, 2026 | 39 | 2.09 |
| May 18, 2026 | 39 | 2.09 |
| May 17, 2026 | 39 | 2.09 |
| May 16, 2026 | 39 | 2.08 |
| May 15, 2026 | 39 | 2.09 |
| Apr 20, 2026 | 54 | 2.16 |
| Apr 19, 2026 | 41 | 2.08 |
| Apr 18, 2026 | 42 | 2.09 |
| Apr 17, 2026 | 41 | 2.08 |
| Apr 16, 2026 | 42 | 2.09 |
| Apr 15, 2026 | 43 | 2.09 |
| Apr 14, 2026 | 45 | 2.11 |
| Apr 13, 2026 | 56 | 2.17 |
| Apr 12, 2026 | 67 | 2.22 |
| Apr 11, 2026 | 38 | 2.06 |
| Apr 10, 2026 | 37 | 2.05 |
| Apr 9, 2026 | 37 | 2.05 |
| Apr 8, 2026 | 37 | 2.05 |
| Apr 7, 2026 | 37 | 2.05 |
| Apr 6, 2026 | 37 | 2.05 |
| Apr 5, 2026 | 38 | 2.06 |
Station Information
- USGS Site No
- 08149900
- State
- TX
- County
- Kimble County
- Coordinates
- 30.4790, -99.7780
- Drainage Area
- 879 mi²
- Datum (ft)
- 1,677.4
- HUC Code
- 12090204
Recent Extremes
- Max discharge
-
620 cfsJul 16, 2025
- Min discharge
-
30 cfsJun 30, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Llano Rv near Junction, TXHigh3.1 mi · 161 cfs
-
North Llano Rv near Junction, TXVery High3.1 mi · 249 cfs
-
San Saba Rv at Menard, TXHigh30.4 mi · 42 cfs
-
North Fork Guadalupe Rv near Hunt, TXNormal37.0 mi · 18 cfs
-
Guadalupe Rv at Hunt, TXNormal39.2 mi · 28 cfs