Henrys Fork at St Anthony ID
USGS Site No: 13050500 • Henrys Fork • Fremont County, ID
Henrys Fork at St Anthony ID on the Henrys Fork is currently at 1,190 cfs (Normal — 35th percentile for this date) . Gage height: 3.56 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 27 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 | 852 | |
| 25th | Low threshold | 1,090 | |
| 50th (Median) | Normal (median) | 1,330 | Today: 1,190 cfs |
| 75th | High threshold | 1,680 | |
| 95th | Very High threshold | 2,430 |
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 | 1,250 | — |
| May 27, 2026 | 1,210 | — |
| May 26, 2026 | 1,090 | — |
| May 25, 2026 | 977 | — |
| May 24, 2026 | 930 | — |
| May 23, 2026 | 925 | — |
| May 22, 2026 | 969 | — |
| May 21, 2026 | 911 | — |
| May 20, 2026 | 753 | — |
| May 19, 2026 | 719 | — |
| May 18, 2026 | 733 | — |
| May 17, 2026 | 826 | — |
| May 16, 2026 | 957 | — |
| May 15, 2026 | 1,050 | — |
| Apr 20, 2026 | 1,050 | — |
| Apr 19, 2026 | 1,200 | — |
| Apr 18, 2026 | 1,260 | — |
| Apr 17, 2026 | 1,460 | — |
| Apr 16, 2026 | 1,380 | — |
| Apr 15, 2026 | 1,010 | — |
| Apr 14, 2026 | 1,030 | — |
| Apr 13, 2026 | 1,070 | — |
| Apr 12, 2026 | 1,120 | — |
| Apr 11, 2026 | 962 | — |
| Apr 10, 2026 | 959 | — |
| Apr 9, 2026 | 1,090 | — |
| Apr 8, 2026 | 1,160 | — |
| Apr 7, 2026 | 1,220 | — |
| Apr 6, 2026 | 1,330 | — |
| Apr 5, 2026 | 1,420 | — |
Station Information
- USGS Site No
- 13050500
- State
- ID
- County
- Fremont County
- Coordinates
- 43.9669, -111.6725
- Drainage Area
- 1,770 mi²
- Datum (ft)
- 4,953.2
- HUC Code
- 17040203
Flood Stage Thresholds
- Action Stage
- 6.5 ft
- Flood Stage
- 7.0 ft
- Moderate Flood
- 8.2 ft
- Major Flood
- 11.0 ft
Currently 3.44 ft below flood stage.
Recent Extremes
- Max discharge
-
3,060 cfsMay 12, 2025
- Min discharge
-
700 cfsOct 9, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Teton River near St Anthony IDVery High4.0 mi · 1,590 cfs
-
Fall River near Chester IDVery High6.3 mi · 998 cfs
-
Nf Teton River near Sugar City IDHigh6.9 mi · 195 cfs
-
Sf Teton River Near Rexburg IDVery High10.5 mi · 432 cfs
-
Henrys Fork near Ashton IDNormal10.7 mi · 1,260 cfs