North Branch Potomac River Near Cumberland, MD

USGS Site No: 01603000 • Potomac River • Allegany County, MD

North Branch Potomac River Near Cumberland, MD on the Potomac River is currently at 5,230 cfs (Very High — 110th percentile for this date) . Gage height: 6.51 ft.

Reading from

5,230
CFS Discharge
6.51
Gage Height (ft)
Very High
Flow Condition
Normal
Flood Status

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 148
25th Low threshold 223
50th (Median) Normal (median) 350
75th High threshold 525
95th Very High threshold 2,110

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.

13k 6.4k 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 8,180 —
May 27, 2026 7,650 —
May 26, 2026 5,930 —
May 25, 2026 4,530 —
May 24, 2026 2,500 —
May 23, 2026 2,240 —
May 22, 2026 589 —
May 21, 2026 474 —
May 20, 2026 416 —
May 19, 2026 416 —
May 18, 2026 430 —
May 17, 2026 666 —
May 16, 2026 483 —
May 15, 2026 473 —
Apr 21, 2026 521 —
Apr 20, 2026 754 —
Apr 19, 2026 822 —
Apr 18, 2026 633 —
Apr 17, 2026 598 —
Apr 16, 2026 613 —
Apr 15, 2026 645 —
Apr 14, 2026 643 —
Apr 13, 2026 705 —
Apr 12, 2026 727 —
Apr 11, 2026 777 —
Apr 10, 2026 803 —
Apr 9, 2026 833 —
Apr 8, 2026 895 —
Apr 7, 2026 1,010 —
Apr 6, 2026 1,230 —

Station Information

USGS Site No
01603000
State
MD
Coordinates
39.6218, -78.7734
Drainage Area
877 mi²
Datum (ft)
584.4
HUC Code
020700020801
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
12.0 ft
Flood Stage
17.0 ft
Moderate Flood
21.0 ft
Major Flood
23.0 ft

Currently 10.49 ft below flood stage.

Recent Extremes

Max discharge
25,800 cfs
May 14, 2025
Min discharge
234 cfs
Jan 24, 2026
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges