Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • High tide Apr 25 @ 4:34 AM
    8.28 ft
  • Low tide Apr 25 @ 12:18 PM
    0.11 ft
  • High tide Apr 25 @ 6:34 PM
    6.56 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    12:59 AM
  • Moonset
    9:00 AM
  • Moon Phase
    Waning Gibbous (77%)

  • 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 April 25 the tide peaks at 8.28 ft at 4:34 AM and falls to 0.11 ft at 12:18 PM. Predictions are derived from NOAA data; times are shown in local station time.
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