Snake River near Irwin ID
USGS Site No: 13032500 • Snake River • Bonneville County, ID
Snake River near Irwin ID on the Snake River is currently at 13,100 cfs (Very High — 119th percentile for this date) . Gage height: 9.05 ft. This station is at or above flood stage.
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 | 1,290 | |
| 25th | Low threshold | 1,780 | |
| 50th (Median) | Normal (median) | 2,470 | |
| 75th | High threshold | 3,050 | |
| 95th | Very High threshold | 3,850 |
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 | 13,300 | — |
| May 27, 2026 | 13,400 | — |
| May 26, 2026 | 13,400 | — |
| May 25, 2026 | 13,400 | — |
| May 24, 2026 | 13,500 | — |
| May 23, 2026 | 13,500 | — |
| May 22, 2026 | 13,500 | — |
| May 21, 2026 | 13,500 | — |
| May 20, 2026 | 13,500 | — |
| May 18, 2026 | 13,900 | — |
| May 17, 2026 | 14,000 | — |
| May 16, 2026 | 14,000 | — |
| May 15, 2026 | 14,000 | — |
| Apr 20, 2026 | 8,060 | — |
| Apr 19, 2026 | 8,050 | — |
| Apr 18, 2026 | 8,070 | — |
| Apr 17, 2026 | 8,080 | — |
| Apr 16, 2026 | 7,740 | — |
| Apr 15, 2026 | 7,440 | — |
| Apr 14, 2026 | 7,430 | — |
| Apr 13, 2026 | 7,490 | — |
| Apr 12, 2026 | 7,510 | — |
| Apr 11, 2026 | 7,490 | — |
| Apr 10, 2026 | 7,460 | — |
| Apr 9, 2026 | 6,930 | — |
| Apr 8, 2026 | 5,300 | — |
| Apr 7, 2026 | 3,770 | — |
| Apr 6, 2026 | 3,080 | — |
| Apr 5, 2026 | 3,000 | — |
| Apr 4, 2026 | 2,990 | — |
Station Information
- USGS Site No
- 13032500
- State
- ID
- County
- Bonneville County
- Coordinates
- 43.3508, -111.2189
- Drainage Area
- 5,225 mi²
- Datum (ft)
- 5,356.7
- HUC Code
- 17040104
Flood Stage Thresholds
- Action Stage
- 11.0 ft
Recent Extremes
- Max discharge
-
14,100 cfsMay 13, 2025
- Min discharge
-
870 cfsJan 7, 2026
Computed from the local daily-values archive.
Nearby Gauges
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Greys River Above Reservoir, Near Alpine, WYVery High18.8 mi · 1,260 cfs
-
Snake River Above Reservoir, Near Alpine, WYVery High19.7 mi · 13,400 cfs
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Fish Creek at Wilson, WYVery High20.3 mi · 708 cfs
-
Salt River Above Reservoir, Near Etna, WYVery Low20.8 mi · 405 cfs
-
Flat Creek Below Cache Creek, Near Jackson, WYVery High22.4 mi · 164 cfs