Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • Low tide Sep 20 @ 4:25 AM
    0.89 ft
  • High tide Sep 20 @ 10:45 AM
    5.66 ft
  • Low tide Sep 20 @ 4:14 PM
    3.22 ft
  • High tide Sep 20 @ 9:24 PM
    6.50 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    4:41 PM
  • Moonset
    12:14 AM
  • Moon Phase
    First Quarter (68%)

  • 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 20 the tide peaks at 5.66 ft at 10:45 AM and falls to 0.89 ft at 4:25 AM. Predictions are derived from NOAA data; times are shown in local station time.
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