Hatchery C at Forest Svc Road 23 near Coffman Cove AK

USGS Site No: 15086225 • Prince of Wales-Hyder Census Area, AK

Hatchery C at Forest Svc Road 23 near Coffman Cove AK is currently at 34 cfs (Very Low — 7th percentile for this date) . Gage height: 6.17 ft.

Reading from

34
CFS Discharge
6.17
Gage Height (ft)
Very Low
Flow Condition
N/A
Flood Status

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 50 Today: 34 cfs
25th Low threshold 60
50th (Median) Normal (median) 74
75th High threshold 139
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.

799 400 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 42
May 27, 2026 52
May 26, 2026 65
May 25, 2026 79
May 24, 2026 96
May 23, 2026 125
May 22, 2026 156
May 21, 2026 138
May 19, 2026 98
May 18, 2026 110
May 17, 2026 139
May 16, 2026 200
May 15, 2026 204
Apr 21, 2026 162
Apr 20, 2026 185
Apr 19, 2026 179
Apr 18, 2026 140
Apr 17, 2026 118
Apr 16, 2026 126
Apr 15, 2026 148
Apr 14, 2026 173
Apr 13, 2026 183
Apr 12, 2026 203
Apr 11, 2026 234
Apr 10, 2026 238
Apr 9, 2026 246
Apr 8, 2026 362
Apr 7, 2026 646
Apr 6, 2026 740
Apr 5, 2026 245

Station Information

USGS Site No
15086225
State
AK
Coordinates
55.9086, -132.9308
Drainage Area
39 mi²
Datum (ft)
155.2
HUC Code
19010103
View on USGS NWIS →

Recent Extremes

Max discharge
2,400 cfs
Jan 10, 2026
Min discharge
5 cfs
Sep 9, 2025

Computed from the local daily-values archive.

Nearby Gauges