Atigun River below Galbraith Lake near Pump Station 4 AK

USGS Site No: 15905100 • Atigun River • North Slope Borough, AK

Atigun River below Galbraith Lake near Pump Station 4 AK on the Atigun River is currently at 386 cfs (Very High — 95th percentile for this date) . Gage height: 29.95 ft.

Reading from

386
CFS Discharge
29.95
Gage Height (ft)
Very High
Flow Condition
N/A
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 19
50th (Median) Normal (median) 24
75th High threshold 35
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.

798 399 0 cfs Mar 16 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 491 —
May 27, 2026 576 —
May 26, 2026 635 —
May 25, 2026 671 —
May 24, 2026 681 —
May 23, 2026 739 —
Apr 8, 2026 305 —
Apr 7, 2026 302 —
Apr 6, 2026 302 —
Apr 5, 2026 301 —
Apr 4, 2026 301 —
Apr 3, 2026 301 —
Apr 2, 2026 301 —
Apr 1, 2026 301 —
Mar 31, 2026 301 —
Mar 30, 2026 300 —
Mar 29, 2026 300 —
Mar 28, 2026 300 —
Mar 27, 2026 300 —
Mar 26, 2026 300 —
Mar 25, 2026 299 —
Mar 24, 2026 299 —
Mar 23, 2026 299 —
Mar 22, 2026 299 —
Mar 21, 2026 299 —
Mar 20, 2026 298 —
Mar 19, 2026 298 —
Mar 18, 2026 298 —
Mar 17, 2026 298 —
Mar 16, 2026 298 —

Station Information

USGS Site No
15905100
State
AK
County
North Slope Borough
Coordinates
68.4522, -149.3733
Drainage Area
297 mi²
Datum (ft)
2,586.7
HUC Code
19060402
View on USGS NWIS →

Recent Extremes

Max discharge
4,560 cfs
Jun 17, 2025
Min discharge
267 cfs
Oct 6, 2025

Computed from the local daily-values archive.

Nearby Gauges

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