Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • High tide Sep 13 @ 3:49 AM
    7.54 ft
  • Low tide Sep 13 @ 10:22 AM
    0.24 ft
  • High tide Sep 13 @ 3:57 PM
    8.28 ft
  • Low tide Sep 13 @ 10:58 PM
    -0.39 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    9:57 AM
  • Moonset
    8:22 PM
  • Moon Phase
    Waxing Crescent (9%)

  • 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 September 13 the tide peaks at 7.54 ft at 3:49 AM and falls to 0.24 ft at 10:22 AM. Predictions are derived from NOAA data; times are shown in local station time.
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