Potomac River at Shepherdstown, WV
USGS Site No: 01618000 • Potomac River • Jefferson County, WV
Potomac River at Shepherdstown, WV on the Potomac River is currently at 24,500 cfs (Very High — 102th percentile for this date) . Gage height: 8.98 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 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 | 1,530 | |
| 25th | Low threshold | 2,280 | |
| 50th (Median) | Normal (median) | 3,550 | |
| 75th | High threshold | 4,770 | |
| 95th | Very High threshold | 14,200 |
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 | 25,800 | — |
| May 27, 2026 | 17,600 | — |
| May 26, 2026 | 18,600 | — |
| May 25, 2026 | 22,600 | — |
| May 24, 2026 | 27,000 | — |
| May 23, 2026 | 7,100 | — |
| May 22, 2026 | 2,540 | — |
| May 21, 2026 | 1,740 | — |
| May 20, 2026 | 1,540 | — |
| May 19, 2026 | 1,820 | — |
| May 18, 2026 | 1,630 | — |
| May 17, 2026 | 1,730 | — |
| May 16, 2026 | 1,770 | — |
| May 15, 2026 | 1,760 | — |
| Apr 21, 2026 | 2,630 | — |
| Apr 20, 2026 | 2,540 | — |
| Apr 19, 2026 | 2,560 | — |
| Apr 18, 2026 | 2,620 | — |
| Apr 17, 2026 | 2,780 | — |
| Apr 16, 2026 | 2,940 | — |
| Apr 15, 2026 | 3,020 | — |
| Apr 14, 2026 | 3,100 | — |
| Apr 13, 2026 | 3,330 | — |
| Apr 12, 2026 | 3,520 | — |
| Apr 11, 2026 | 3,790 | — |
| Apr 10, 2026 | 4,030 | — |
| Apr 9, 2026 | 4,420 | — |
| Apr 8, 2026 | 4,820 | — |
| Apr 7, 2026 | 5,240 | — |
| Apr 6, 2026 | 4,840 | — |
Station Information
- USGS Site No
- 01618000
- State
- WV
- County
- Jefferson County
- Coordinates
- 39.4347, -77.8014
- Drainage Area
- 5,955 mi²
- Datum (ft)
- 280.1
- HUC Code
- 020700041106
Flood Stage Thresholds
- Action Stage
- 8.0 ft
- Flood Stage
- 15.0 ft
- Moderate Flood
- 22.0 ft
- Major Flood
- 25.0 ft
Currently 6.02 ft below flood stage.
Recent Extremes
- Max discharge
-
107,000 cfsMay 15, 2025
- Min discharge
-
636 cfsDec 16, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Antietam Creek Near Sharpsburg, MDNormal3.9 mi · 271 cfs
-
Marsh Run at Grimes, MDNormal5.7 mi · 13 cfs
-
Catoctin Creek Near Middletown, MDHigh13.1 mi · 101 cfs
-
Potomac River at Point Of Rocks, MDVery High17.7 mi · 34,600 cfs
-
Carroll Creek Near Frederick, MDLow19.3 mi · 1 cfs