East. Branch. Penobscot River Below Grand Lake Matagamon

USGS Site No: 01029100 • East. Branch. Penobscot River • Penobscot County, ME

East. Branch. Penobscot River Below Grand Lake Matagamon on the East. Branch. Penobscot River is currently at 398 cfs (Very High — 95th percentile for this date) . Gage height: 2.90 ft.

Reading from

Downstream on East. Branch. Penobscot River ↓
East Branch Penobscot River at Grindstone, Maine
398
CFS Discharge
2.90
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 0
25th Low threshold 0
50th (Median) Normal (median) 212
75th High threshold 0
95th Very High threshold 0

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.

3k 1.5k 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 344 —
May 27, 2026 372 —
May 26, 2026 437 —
May 25, 2026 432 —
May 24, 2026 507 —
May 23, 2026 665 —
May 22, 2026 832 —
May 21, 2026 1,050 —
May 20, 2026 1,200 —
May 19, 2026 1,270 —
May 18, 2026 1,480 —
May 17, 2026 1,580 —
May 16, 2026 1,560 —
May 15, 2026 1,510 —
Apr 21, 2026 2,640 —
Apr 20, 2026 2,670 —
Apr 19, 2026 2,660 —
Apr 18, 2026 2,710 —
Apr 17, 2026 2,740 —
Apr 16, 2026 2,490 —
Apr 15, 2026 1,140 —
Apr 14, 2026 741 —
Apr 13, 2026 709 —
Apr 12, 2026 694 —
Apr 11, 2026 679 —
Apr 10, 2026 672 —
Apr 9, 2026 670 —
Apr 8, 2026 668 —
Apr 7, 2026 668 —
Apr 6, 2026 668 —

Station Information

USGS Site No
01029100
State
ME
County
Penobscot County
Coordinates
46.1344, -68.7939
Drainage Area
493 mi²
Datum (ft)
626.0
HUC Code
01020002
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
7.5 ft
Flood Stage
8.5 ft

Currently 5.60 ft below flood stage.

Recent Extremes

Max discharge
3,850 cfs
May 1, 2025
Min discharge
205 cfs
Mar 7, 2026
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges

Related