Green River Below Fontenelle Reservoir, WY
USGS Site No: 09211200 • Green River • Sweetwater County, WY
Green River Below Fontenelle Reservoir, WY on the Green River is currently at 647 cfs (Low — 18th percentile for this date) . Gage height: 11.13 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 | 534 | |
| 25th | Low threshold | 754 | Today: 647 cfs |
| 50th (Median) | Normal (median) | 894 | |
| 75th | High threshold | 1,110 | |
| 95th | Very High threshold | 1,430 |
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 | 654 | — |
| May 27, 2026 | 740 | — |
| May 26, 2026 | 740 | — |
| May 25, 2026 | 739 | — |
| May 24, 2026 | 740 | — |
| May 23, 2026 | 741 | — |
| May 22, 2026 | 742 | — |
| May 21, 2026 | 743 | — |
| May 20, 2026 | 748 | — |
| May 19, 2026 | 746 | — |
| May 18, 2026 | 751 | — |
| May 17, 2026 | 756 | — |
| May 16, 2026 | 761 | — |
| May 15, 2026 | 765 | — |
| Apr 20, 2026 | 819 | — |
| Apr 19, 2026 | 817 | — |
| Apr 18, 2026 | 815 | — |
| Apr 17, 2026 | 815 | — |
| Apr 16, 2026 | 816 | — |
| Apr 15, 2026 | 815 | — |
| Apr 14, 2026 | 820 | — |
| Apr 13, 2026 | 822 | — |
| Apr 12, 2026 | 825 | — |
| Apr 11, 2026 | 825 | — |
| Apr 10, 2026 | 828 | — |
| Apr 9, 2026 | 828 | — |
| Apr 8, 2026 | 826 | — |
| Apr 7, 2026 | 826 | — |
| Apr 6, 2026 | 809 | — |
| Apr 5, 2026 | 764 | — |
Station Information
- USGS Site No
- 09211200
- State
- WY
- County
- Sweetwater County
- Coordinates
- 42.0210, -110.0498
- Drainage Area
- 4,197 mi²
- Datum (ft)
- 6,378.1
- HUC Code
- 14040103
Flood Stage Thresholds
- Action Stage
- 15.5 ft
- Flood Stage
- 16.5 ft
- Moderate Flood
- 17.5 ft
- Major Flood
- 18.5 ft
Currently 5.37 ft below flood stage.
Recent Extremes
- Max discharge
-
1,790 cfsMay 23, 2025
- Min discharge
-
654 cfsMay 28, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Green River Near LA Barge, WYHigh13.2 mi · 1,310 cfs
-
Big Sandy River at Gasson Bridge, Near Eden, WYLow19.3 mi · 35 cfs
-
Fontenelle C near Herschler Ranch, near Fontenelle, WYVery High19.5 mi · 96 cfs
-
Hams Fork at Diamondville, WYHigh30.0 mi · 80 cfs
-
Hams Fork Below Pole Creek, Near Frontier, WYVery High34.4 mi · 132 cfs