Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • High tide Feb 22 @ 4:32 AM
    9.19 ft
  • Low tide Feb 22 @ 11:49 AM
    0.52 ft
  • High tide Feb 22 @ 5:32 PM
    6.79 ft
  • Low tide Feb 22 @ 11:26 PM
    1.92 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    9:02 AM
  • Moonset
    —
  • Moon Phase
    First Quarter (31%)

  • 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 22 the tide peaks at 9.19 ft at 4:32 AM and falls to 0.52 ft at 11:49 AM. Predictions are derived from NOAA data; times are shown in local station time.
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