Sauk River near Sauk, WA

North Cascades & Puget Sound · USGS gauge 12189500 · Updated Oct 24, 3:19 AM PDT · USGS data, provisional

Too low640 cfs● steady (-1% in 24 h)

Reading time: Oct 24, 3:00 AM PDT · Provisional data

Flow is far below normal for the date. Expect shallow riffles and slower water; some stretches may be hard to float and fish can be stressed by low flows. Check local reports for the specific stretch.

Vs. normal for this date
<1st percentile
Typical range (25th–75th)
1,470–4,000 cfs
Median for this date
2,360 cfs
7-day low / high
640 / 894 cfs

Plain-language explanation

Sauk River near Sauk is flowing at 640 cubic feet per second (cfs) as of Oct 24, 3:00 AM PDT. That is among the lowest flows on record for this time of year: lower than over 99% of the daily flows this gauge has recorded for this date (give or take 7 days) over 100 years of record (1911–2026).

The middle half of those historical flows runs from 1,470 to 4,000 cfs, with a median of 2,360 cfs; the lowest 10% of days are at or below 990 cfs and the highest 10% at or above 6,770 cfs.

Over the last 24 hours the flow has been steady (-0.9%). In the last 7 days it ranged from 640 to 894 cfs.

Why this status: Flow is at or below the seasonal 10th percentile and in the lower 40% of all days on record.

7-day trend

602684767850932Sun 10/18Mon 10/19Tue 10/20Wed 10/21Thu 10/22Fri 10/23Sat 10/24

Hourly flow in cfs, Pacific time. The shaded band is the typical range (25th–75th percentile) for this date, shown when it falls within the chart.

Day (Pacific)Mean cfsPercentileStatus that day
Sun Oct 188335thToo low
Mon Oct 197151stToo low
Tue Oct 20683<1stToo low
Wed Oct 21666<1stToo low
Thu Oct 22658<1stToo low
Fri Oct 23647<1stToo low
Sat Oct 24 (so far)640<1stToo low

Seasonal context

1002005001,0002,0005,00010,00020,00050,000100,000JanFebMarAprMayJunJulAugSepOctNovDec

Shaded band: 10th–90th percentile of daily flows through the year; dashed line: median. Log scale. Dot: today's flow. Based on 100 years of USGS daily data (1911–2026).

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About this gauge

USGS site
USGS-12189500
USGS name
Sauk River Near Sauk, Wa
Drainage area
714 sq mi
Location
48.4246, -121.5685
Record in this analysis
1911–2026

Typical uses

steelheadrafting

Notes: Glacier-fed headwaters; can run milky and rise quickly in rain. (Hand-written general note, not from USGS data.)

Data from the U.S. Geological Survey (USGS). Readings are provisional and subject to revision. Flowcast statuses are automated comparisons with each gauge's own history, not safety ratings or fishing reports. Check local conditions, weather, regulations and closures before you go. Rivers can change quickly.

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