Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • High tide Dec 21 @ 3:13 AM
    7.55 ft
  • Low tide Dec 21 @ 8:49 AM
    3.50 ft
  • High tide Dec 21 @ 1:48 PM
    8.99 ft
  • Low tide Dec 21 @ 9:36 PM
    -0.32 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    9:33 AM
  • Moonset
    5:55 PM
  • Moon Phase
    New Moon (3%)

  • 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 December 21 the tide peaks at 7.55 ft at 3:13 AM and falls to 3.50 ft at 8:49 AM. Predictions are derived from NOAA data; times are shown in local station time.
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