Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • High tide Jul 01 @ 2:40 AM
    8.25 ft
  • Low tide Jul 01 @ 10:25 AM
    -0.70 ft
  • High tide Jul 01 @ 4:32 PM
    6.89 ft
  • Low tide Jul 01 @ 10:16 PM
    2.68 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    10:37 PM
  • Moonset
    6:48 AM
  • Moon Phase
    Full Moon (97%)

  • 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 July 1 the tide peaks at 8.25 ft at 2:40 AM and falls to -0.70 ft at 10:25 AM. Predictions are derived from NOAA data; times are shown in local station time.
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