Tonawanda Creek at Rapids NY
USGS Site No: 04218000 • Tonawanda Creek • Niagara County, NY
Tonawanda Creek at Rapids NY on the Tonawanda Creek is currently at 354 cfs (High — 76th percentile for this date) . Gage height: 2.30 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 | 39 | |
| 25th | Low threshold | 57 | |
| 50th (Median) | Normal (median) | 123 | |
| 75th | High threshold | 278 | |
| 95th | Very High threshold | 1,520 | Today: 354 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 | 573 | — |
| May 27, 2026 | 891 | — |
| May 26, 2026 | 1,170 | — |
| May 25, 2026 | 1,340 | — |
| May 24, 2026 | 1,170 | — |
| May 23, 2026 | 298 | — |
| May 22, 2026 | 279 | — |
| May 21, 2026 | 306 | — |
| May 20, 2026 | 350 | — |
| May 19, 2026 | 415 | — |
| May 18, 2026 | 470 | — |
| May 17, 2026 | 459 | — |
| May 16, 2026 | 464 | — |
| May 15, 2026 | 499 | — |
| Apr 21, 2026 | 1,710 | — |
| Apr 20, 2026 | 1,880 | — |
| Apr 19, 2026 | 2,120 | — |
| Apr 18, 2026 | 1,700 | — |
| Apr 17, 2026 | 1,420 | — |
| Apr 16, 2026 | 1,040 | — |
| Apr 15, 2026 | 576 | — |
| Apr 14, 2026 | 531 | — |
| Apr 13, 2026 | 532 | — |
| Apr 12, 2026 | 580 | — |
| Apr 11, 2026 | 647 | — |
| Apr 10, 2026 | 749 | — |
| Apr 9, 2026 | 948 | — |
| Apr 8, 2026 | 1,360 | — |
| Apr 7, 2026 | 1,730 | — |
| Apr 6, 2026 | 1,830 | — |
Station Information
- USGS Site No
- 04218000
- State
- NY
- County
- Niagara County
- Coordinates
- 43.0935, -78.6362
- Drainage Area
- 349 mi²
- Datum (ft)
- 570.7
- HUC Code
- 04120104
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 14.0 ft
- Major Flood
- 16.0 ft
Currently 9.70 ft below flood stage.
Recent Extremes
- Max discharge
-
4,700 cfsApr 3, 2026
- Min discharge
-
10 cfsSep 21, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Erie (barge) C above Halls Waste Weir at Lockport NYNormal6.2 mi · 626 cfs
-
Ellicott Creek Below Williamsville NYNormal10.3 mi · 108 cfs
-
Eighteenmile Creek at Newfane NYLow11.4 mi · 87 cfs
-
Oak Orchard Creek Near Shelby NYVery High13.8 mi · 357 cfs
-
Cayuga Creek Near Lancaster NYNormal14.1 mi · 47 cfs