Washington

Knappa, Knappa Slough

Weekly Monthly
Minus Tides
  • Current Height

  • Daily Tides

  • High tide Mar 22 @ 4:21 AM
    9.40 ft
  • Low tide Mar 22 @ 11:45 AM
    -0.43 ft
  • High tide Mar 22 @ 5:35 PM
    7.20 ft
  • Low tide Mar 22 @ 11:29 PM
    1.90 ft

  • Astronomical Events

  • Sunrise
  • Sunset
  • Moonrise
    8:31 AM
  • Moonset
    —
  • Moon Phase
    Waxing Crescent (17%)

  • 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 March 22 the tide peaks at 9.40 ft at 4:21 AM and falls to -0.43 ft at 11:45 AM. Predictions are derived from NOAA data; times are shown in local station time.
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