Columbia River at Wanapum Dam (outflow), WA

KITTITAS COUNTY, WA46.8747°N, -119.9714°W Updated 8 hr ago

FLOW RATE

103,950cfs

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

103,950cfs

Optimal band: 52,906–71,578 cfs

PERIOD HIGH

103,950cfs

PERIOD LOW

42,204cfs

RUNNABLE

39%

last 30 day in band

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46.8747, -119.9714

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

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

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