West Fork San Jacinto Rv above Lake Houston near Porter, TX
USGS Site No: 08068090 • West Fork San Jacinto River • Montgomery County, TX
West Fork San Jacinto Rv above Lake Houston near Porter, TX on the West Fork San Jacinto River is currently at 359 cfs (Normal — 75th percentile for this date) . Gage height: 58.20 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 29 | |
| 25th | Low threshold | 40 | |
| 50th (Median) | Normal (median) | 76 | |
| 75th | High threshold | 364 | Today: 359 cfs |
| 95th | Very High threshold | 5,360 |
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 | 510 | — |
| May 27, 2026 | 564 | — |
| May 26, 2026 | 333 | — |
| May 25, 2026 | 656 | — |
| May 24, 2026 | 885 | — |
| May 23, 2026 | 214 | — |
| May 22, 2026 | 222 | — |
| May 21, 2026 | 476 | — |
| May 20, 2026 | 463 | — |
| May 19, 2026 | 97 | — |
| May 18, 2026 | 105 | — |
| May 17, 2026 | 134 | — |
| May 16, 2026 | 214 | — |
| May 15, 2026 | 507 | — |
| Apr 20, 2026 | 119 | — |
| Apr 19, 2026 | 106 | — |
| Apr 18, 2026 | 79 | — |
| Apr 17, 2026 | 87 | — |
| Apr 16, 2026 | 100 | — |
| Apr 15, 2026 | 114 | — |
| Apr 14, 2026 | 141 | — |
| Apr 13, 2026 | 211 | — |
| Apr 12, 2026 | 179 | — |
| Apr 11, 2026 | 164 | — |
| Apr 10, 2026 | 109 | — |
| Apr 9, 2026 | 133 | — |
| Apr 8, 2026 | 237 | — |
| Apr 7, 2026 | 299 | — |
| Apr 6, 2026 | 240 | — |
| Apr 5, 2026 | 425 | — |
Station Information
- USGS Site No
- 08068090
- State
- TX
- County
- Montgomery County
- Coordinates
- 30.1412, -95.3382
- Drainage Area
- 962 mi²
- Datum (ft)
- 0.0
- HUC Code
- 12040101
Flood Stage Thresholds
- Action Stage
- 73.0 ft
- Flood Stage
- 81.0 ft
- Moderate Flood
- 88.5 ft
- Major Flood
- 92.0 ft
Currently 22.80 ft below flood stage.
Recent Extremes
- Max discharge
-
5,530 cfsMay 4, 2025
- Min discharge
-
43 cfsApr 1, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Spring Ck near Spring, TXHigh6.2 mi · 428 cfs
-
Panther Branch near Spring, TXNormal8.3 mi · 48 cfs
-
Caney Ck near Splendora, TXHigh8.5 mi · 56 cfs
-
Cypress Ck near Westfield, TXHigh9.1 mi · 511 cfs
-
West Fork San Jacinto Rv near Humble, TXHigh9.2 mi · 1,870 cfs