Sulphur Rv at Ih 30 near Dalby Springs, TX
USGS Site No: 07343450 • Sulphur River • Bowie County, TX
Sulphur Rv at Ih 30 near Dalby Springs, TX on the Sulphur River is currently at 1,000 cfs (Normal — 46th percentile for this date) . Gage height: 13.62 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 | 35 | |
| 25th | Low threshold | 179 | |
| 50th (Median) | Normal (median) | 1,170 | Today: 1,000 cfs |
| 75th | High threshold | 3,450 | |
| 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 | 816 | 12.16 |
| May 27, 2026 | 1,000 | 13.60 |
| May 26, 2026 | 1,280 | 15.75 |
| May 25, 2026 | 1,130 | 14.61 |
| May 24, 2026 | 616 | 10.54 |
| May 23, 2026 | 821 | 12.20 |
| May 22, 2026 | 968 | 13.34 |
| May 21, 2026 | 494 | 9.43 |
| May 20, 2026 | 287 | 7.62 |
| May 19, 2026 | 325 | 7.96 |
| May 18, 2026 | 441 | 9.02 |
| May 17, 2026 | 639 | 10.73 |
| May 16, 2026 | 852 | 12.43 |
| May 15, 2026 | 1,180 | 14.96 |
| Apr 20, 2026 | 56 | 5.14 |
| Apr 19, 2026 | 61 | 5.21 |
| Apr 18, 2026 | 68 | 5.30 |
| Apr 17, 2026 | 78 | 5.42 |
| Apr 16, 2026 | 93 | 5.61 |
| Apr 15, 2026 | 118 | 5.91 |
| Apr 14, 2026 | 163 | 6.38 |
| Apr 13, 2026 | 243 | 7.20 |
| Apr 12, 2026 | 369 | 8.36 |
| Apr 11, 2026 | 508 | 9.61 |
| Apr 10, 2026 | 755 | 11.66 |
| Apr 9, 2026 | 1,160 | 14.78 |
| Apr 8, 2026 | 1,740 | 18.43 |
| Apr 7, 2026 | 1,900 | 19.08 |
| Apr 6, 2026 | 1,280 | 15.64 |
| Apr 5, 2026 | 270 | 7.41 |
Station Information
- USGS Site No
- 07343450
- State
- TX
- County
- Bowie County
- Coordinates
- 33.3094, -94.6981
- Drainage Area
- 1,976 mi²
- Datum (ft)
- 225.7
- HUC Code
- 11140302
Recent Extremes
- Max discharge
-
21,700 cfsJun 15, 2025
- Min discharge
-
0 cfsNov 12, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
White Oak Ck at Ih 30 near Omaha, TXNormal6.5 mi · 170 cfs
-
Anderson Ck at Highway 98 near Simms, TXVery High12.7 mi · 388 cfs
-
Big Cypress Ck at Us Highway 271 near Pittsburg, TXLow22.5 mi · 5 cfs
-
Big Cypress Ck near Pittsburg, TXNormal22.6 mi · 12 cfs
-
White Oak Ck near Talco, TXNormal22.8 mi · 74 cfs