Big Sandy River Near Farson, WY
USGS Site No: 09213500 • Big Sandy River • Sublette County, WY
Big Sandy River Near Farson, WY on the Big Sandy River is currently at 216 cfs (Very High — 123th percentile for this date) . Gage height: 4.32 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 | 12 | |
| 25th | Low threshold | 16 | |
| 50th (Median) | Normal (median) | 25 | |
| 75th | High threshold | 34 | |
| 95th | Very High threshold | 57 |
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 | 185 | — |
| May 27, 2026 | 153 | — |
| May 26, 2026 | 131 | — |
| May 25, 2026 | 115 | — |
| May 24, 2026 | 113 | — |
| May 23, 2026 | 109 | — |
| May 22, 2026 | 118 | — |
| May 21, 2026 | 124 | — |
| May 20, 2026 | 127 | — |
| May 19, 2026 | 137 | — |
| May 18, 2026 | 156 | — |
| May 17, 2026 | 191 | — |
| May 16, 2026 | 219 | — |
| May 15, 2026 | 266 | — |
| Apr 20, 2026 | 64 | — |
| Apr 19, 2026 | 63 | — |
| Apr 18, 2026 | 65 | — |
| Apr 17, 2026 | 70 | — |
| Apr 16, 2026 | 74 | — |
| Apr 15, 2026 | 73 | — |
| Apr 14, 2026 | 80 | — |
| Apr 13, 2026 | 81 | — |
| Apr 12, 2026 | 85 | — |
| Apr 11, 2026 | 77 | — |
| Apr 10, 2026 | 71 | — |
| Apr 9, 2026 | 68 | — |
| Apr 8, 2026 | 67 | — |
| Apr 7, 2026 | 68 | — |
| Apr 6, 2026 | 69 | — |
| Apr 5, 2026 | 69 | — |
Station Information
- USGS Site No
- 09213500
- State
- WY
- County
- Sublette County
- Coordinates
- 42.3296, -109.5119
- Drainage Area
- 315 mi²
- Datum (ft)
- 6,794.0
- HUC Code
- 14040104
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 13.0 ft
- Major Flood
- 14.0 ft
Currently 7.68 ft below flood stage.
Recent Extremes
- Max discharge
-
519 cfsJun 2, 2025
- Min discharge
-
12 cfsSep 16, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
New Fork River Near Big Piney, WYVery High26.9 mi · 889 cfs
-
East Fork at New Fork, WYVery High27.3 mi · 652 cfs
-
Big Sandy River at Gasson Bridge, Near Eden, WYLow27.9 mi · 35 cfs
-
Ward Ball Reservoir Outflow, near Boulder, WYUnknown29.0 mi · 26 cfs
-
Green River Near LA Barge, WYHigh34.6 mi · 1,310 cfs