Washington

Knappa, Knappa Slough

Minus Tides
  • Current Height


  • Daily Tides

  • High tide Jun 01 @ 2:21 AM
    8.49 ft
  • Low tide Jun 01 @ 10:09 AM
    -0.55 ft
  • High tide Jun 01 @ 4:16 PM
    6.90 ft
  • Low tide Jun 01 @ 9:51 PM
    3.02 ft
  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    10:55 PM
  • Moonset
    5:56 AM
  • Moon Phase
    Full Moon (98%)
  • Station Info

  • Position:
    L 46°11.2' N     λ 123°35.3' W
  • Station ID:
    9439069
  • Station Type:
    Subordinate
  • Offsets:
  • Datum:
    MLLW (Mean Lower-Low Water)
  • Time Zone:
    -8
  • About: Knappa, Knappa Slough is a subordinate tide station in Columbia River, Washington (46°11.2' N, 123°35.3' W). On June 1 the tide peaks at 8.49 ft at 2:21 AM and falls to -0.55 ft at 10:09 AM. Predictions are derived from NOAA data; times are shown in local station time.
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