Columbia River at Rocky Reach Dam (outflow), WA

CHELAN COUNTY, WA47.5337°N, -120.2960°W Updated 1 hr ago

FLOW RATE

10,700cfs

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

10,700cfs

Optimal band: 33,320–45,080 cfs

PERIOD HIGH

95,100cfs

PERIOD LOW

10,700cfs

RUNNABLE

11%

last 1 day in band

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47.5337, -120.2960

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DATA · USACE · NOAA · NWSUPDATED 2026-09-21 11:00 UTC

Site #nwdp:RRH.Flow-Out.Ave.1Hour.1Hour.CBT-REV·USACE

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