Cascade River at Marblemount, WA

USGS Site No: 12182500 • Cascade River • Skagit County, WA

Cascade River at Marblemount, WA on the Cascade River is currently at 1,800 cfs (High — 79th percentile for this date) . Gage height: 13.85 ft.

Reading from

1,800
CFS Discharge
13.85
Gage Height (ft)
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 289
25th Low threshold 431
50th (Median) Normal (median) 685
75th High threshold 1,230
95th Very High threshold 3,990 Today: 1,800 cfs

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.

7.3k 3.7k 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 1,900 —
May 27, 2026 1,280 —
May 26, 2026 1,160 —
May 25, 2026 1,350 —
May 24, 2026 1,410 —
May 23, 2026 1,330 —
May 22, 2026 1,180 —
May 21, 2026 1,080 —
May 20, 2026 1,010 —
May 19, 2026 1,010 —
May 18, 2026 1,060 —
May 17, 2026 1,190 —
May 16, 2026 1,460 —
May 15, 2026 1,740 —
Apr 20, 2026 739 —
Apr 19, 2026 662 —
Apr 18, 2026 661 —
Apr 17, 2026 701 —
Apr 16, 2026 783 —
Apr 15, 2026 915 —
Apr 14, 2026 965 —
Apr 13, 2026 945 —
Apr 12, 2026 823 —
Apr 11, 2026 841 —
Apr 10, 2026 817 —
Apr 9, 2026 801 —
Apr 8, 2026 834 —
Apr 7, 2026 899 —
Apr 6, 2026 730 —
Apr 5, 2026 646 —

Station Information

USGS Site No
12182500
State
WA
County
Skagit County
Coordinates
48.5262, -121.4154
Drainage Area
172 mi²
Datum (ft)
310.6
HUC Code
17110005
View on USGS NWIS →

Recent Extremes

Max discharge
12,000 cfs
Dec 11, 2025
Min discharge
198 cfs
Oct 16, 2025

Computed from the local daily-values archive.

Nearby Gauges

Related