Washington

Knappa, Knappa Slough

Minus Tides
  • Current Height


  • Daily Tides

  • High tide Nov 15 @ 6:12 AM
    6.61 ft
  • Low tide Nov 15 @ 11:45 AM
    3.45 ft
  • High tide Nov 15 @ 4:37 PM
    7.41 ft
  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    12:39 PM
  • Moonset
    10:10 PM
  • Moon Phase
    First Quarter (35%)
  • 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 November 15 the tide peaks at 6.61 ft at 6:12 AM and falls to 3.45 ft at 11:45 AM. Predictions are derived from NOAA data; times are shown in local station time.
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