Portage River Near Elmore OH
USGS Site No: 04195820 • Portage River • Ottawa County, OH
Portage River Near Elmore OH on the Portage River is currently at 235 cfs (High — 77th percentile for this date) . Gage height: 2.81 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 | 14 | |
| 25th | Low threshold | 29 | |
| 50th (Median) | Normal (median) | 47 | |
| 75th | High threshold | 81 | |
| 95th | Very High threshold | 1,730 | Today: 235 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 28, 2026 | 341 | — |
| May 27, 2026 | 463 | — |
| May 26, 2026 | 695 | — |
| May 25, 2026 | 1,380 | — |
| May 24, 2026 | 2,220 | — |
| May 23, 2026 | 531 | — |
| May 22, 2026 | 466 | — |
| May 21, 2026 | 869 | — |
| May 20, 2026 | 436 | — |
| May 19, 2026 | 164 | — |
| May 18, 2026 | 171 | — |
| May 17, 2026 | 194 | — |
| May 16, 2026 | 225 | — |
| May 15, 2026 | 283 | — |
| Apr 21, 2026 | 245 | — |
| Apr 20, 2026 | 326 | — |
| Apr 19, 2026 | 452 | — |
| Apr 18, 2026 | 629 | — |
| Apr 17, 2026 | 1,090 | — |
| Apr 16, 2026 | 1,040 | — |
| Apr 15, 2026 | 311 | — |
| Apr 14, 2026 | 246 | — |
| Apr 13, 2026 | 250 | — |
| Apr 12, 2026 | 280 | — |
| Apr 11, 2026 | 348 | — |
| Apr 10, 2026 | 433 | — |
| Apr 9, 2026 | 549 | — |
| Apr 8, 2026 | 775 | — |
| Apr 7, 2026 | 1,240 | — |
| Apr 6, 2026 | 2,150 | — |
Station Information
- USGS Site No
- 04195820
- State
- OH
- County
- Ottawa County
- Coordinates
- 41.4912, -83.2246
- Drainage Area
- 494 mi²
- Datum (ft)
- 573.0
- HUC Code
- 04100010
Flood Stage Thresholds
- Action Stage
- 9.5 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 14.0 ft
- Major Flood
- 16.0 ft
Currently 9.19 ft below flood stage.
Recent Extremes
- Max discharge
-
10,500 cfsApr 3, 2026
- Min discharge
-
8 cfsSep 14, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Portage River at Woodville OHHigh7.6 mi · 173 cfs
-
Sandusky River Near Fremont OHHigh13.1 mi · 1,160 cfs
-
Wolf Creek Near Kansas OHVery High19.5 mi · 8 cfs
-
Ottawa River at University Of Toledo, Toledo OHNormal23.2 mi · 34 cfs
-
Wolf Creek at Holland OHNormal25.1 mi · 14 cfs