Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • High tide Feb 21 @ 2:05 AM
    8.68 ft
  • Low tide Feb 21 @ 8:28 AM
    1.04 ft
  • High tide Feb 21 @ 1:52 PM
    9.28 ft
  • Low tide Feb 21 @ 8:57 PM
    -0.71 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    7:16 PM
  • Moonset
    7:29 AM
  • Moon Phase
    Full Moon (99%)

  • 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 February 21 the tide peaks at 8.68 ft at 2:05 AM and falls to 1.04 ft at 8:28 AM. Predictions are derived from NOAA data; times are shown in local station time.
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