North Branch Potomac River at Luke, MD
USGS Site No: 01598500 • Potomac River • Allegany County, MD
North Branch Potomac River at Luke, MD on the Potomac River is currently at 2,520 cfs (Very High — 103th percentile for this date) . Gage height: 4.32 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 | 97 | |
| 25th | Low threshold | 154 | |
| 50th (Median) | Normal (median) | 258 | |
| 75th | High threshold | 351 | |
| 95th | Very High threshold | 1,380 |
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 | 4,560 | — |
| May 27, 2026 | 4,800 | — |
| May 26, 2026 | 3,710 | — |
| May 25, 2026 | 2,560 | — |
| May 24, 2026 | 648 | — |
| May 23, 2026 | 530 | — |
| May 22, 2026 | 359 | — |
| May 21, 2026 | 329 | — |
| May 20, 2026 | 314 | — |
| May 19, 2026 | 311 | — |
| May 18, 2026 | 313 | — |
| May 17, 2026 | 314 | — |
| May 16, 2026 | 604 | — |
| May 15, 2026 | 318 | — |
| Apr 21, 2026 | 349 | — |
| Apr 20, 2026 | 361 | — |
| Apr 19, 2026 | 648 | — |
| Apr 18, 2026 | 661 | — |
| Apr 17, 2026 | 405 | — |
| Apr 16, 2026 | 406 | — |
| Apr 15, 2026 | 419 | — |
| Apr 14, 2026 | 423 | — |
| Apr 13, 2026 | 448 | — |
| Apr 12, 2026 | 482 | — |
| Apr 11, 2026 | 491 | — |
| Apr 10, 2026 | 505 | — |
| Apr 9, 2026 | 506 | — |
| Apr 8, 2026 | 512 | — |
| Apr 7, 2026 | 539 | — |
| Apr 6, 2026 | 567 | — |
Station Information
- USGS Site No
- 01598500
- State
- MD
- County
- Allegany County
- Coordinates
- 39.4790, -79.0638
- Drainage Area
- 406 mi²
- Datum (ft)
- 943.7
- HUC Code
- 020700020207
Flood Stage Thresholds
- Action Stage
- 9.0 ft
- Flood Stage
- 10.5 ft
- Moderate Flood
- 12.5 ft
- Major Flood
- 15.0 ft
Currently 6.18 ft below flood stage.
Recent Extremes
- Max discharge
-
5,760 cfsMay 14, 2025
- Min discharge
-
185 cfsFeb 9, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Georges Creek at Franklin, MDVery High1.7 mi · 220 cfs
-
North Branch Potomac River at Barnum, WVVery High3.4 mi · 1,650 cfs
-
Savage Riv below Savage Riv Dam Near Bloomington, MDVery High3.6 mi · 729 cfs
-
Savage River Near Barton, MDVery High6.6 mi · 221 cfs
-
North Branch Potomac River at Kitzmiller, MDVery High8.6 mi · 839 cfs