Au Sable River Near Curtisville, MI
USGS Site No: 04137005 • Au Sable River • Alcona County, MI
Au Sable River Near Curtisville, MI on the Au Sable River is currently at 1,430 cfs (High — 76th percentile for this date) . Gage height: 8.84 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 29 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 | 903 | |
| 25th | Low threshold | 966 | |
| 50th (Median) | Normal (median) | 1,120 | |
| 75th | High threshold | 1,400 | |
| 95th | Very High threshold | 1,810 | Today: 1,430 cfs |
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 29, 2026 | 1,460 | — |
| May 28, 2026 | 1,520 | — |
| May 27, 2026 | 1,610 | — |
| May 26, 2026 | 1,760 | — |
| May 25, 2026 | 1,720 | — |
| May 24, 2026 | 1,690 | — |
| May 23, 2026 | 1,740 | — |
| May 22, 2026 | 1,890 | — |
| May 21, 2026 | 2,060 | — |
| May 20, 2026 | 2,300 | — |
| May 19, 2026 | 2,410 | — |
| May 18, 2026 | 1,720 | — |
| May 17, 2026 | 1,570 | — |
| May 16, 2026 | 1,620 | — |
| May 15, 2026 | 1,690 | — |
| Apr 21, 2026 | 2,670 | — |
| Apr 20, 2026 | 2,990 | — |
| Apr 19, 2026 | 3,470 | — |
| Apr 18, 2026 | 4,050 | — |
| Apr 17, 2026 | 4,700 | — |
| Apr 16, 2026 | 5,500 | — |
| Apr 15, 2026 | 6,190 | — |
| Apr 14, 2026 | 6,240 | — |
| Apr 13, 2026 | 6,090 | — |
| Apr 12, 2026 | 3,300 | — |
| Apr 11, 2026 | 2,280 | — |
| Apr 10, 2026 | 2,150 | — |
| Apr 9, 2026 | 2,060 | — |
| Apr 8, 2026 | 2,230 | — |
| Apr 7, 2026 | 2,430 | — |
Station Information
- USGS Site No
- 04137005
- State
- MI
- County
- Alcona County
- Coordinates
- 44.5608, -83.8028
- Drainage Area
- 1,598 mi²
- Datum (ft)
- 777.5
- HUC Code
- 04070007
Recent Extremes
- Max discharge
-
6,240 cfsApr 14, 2026
- Min discharge
-
602 cfsJan 24, 2026
Computed from the local daily-values archive.
Nearby Gauges
-
Au Sable River Near Mc Kinley, MIHigh4.0 mi · 1,520 cfs
-
Au Sable River at Mio, MIHigh17.5 mi · 1,150 cfs
-
Pine River at Kings Corner Road near Oscoda, MIUnknown19.8 mi · 0 cfs
-
Au Sable River Near Au Sable, MINormal20.1 mi · 1,510 cfs
-
Van Etten Creek at Highway F-41 at Oscoda, MIVery High24.2 mi · 189 cfs