Pacific Northwest
Knapp Landing
Willow Bar · Washington · NOAA station 9440171 · Tide predictions
45.7417, -122.7550
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Tillamook Bay South Jetty, OR (270) buoy · 61 mi W · Station 46278
Wind & wave reports →
Nearby tide stations
- Multnomah Channel · 6.0 mi NW
- Rocky Point · 6.3 mi SW
- Vancouver · 8.2 mi S
- Saint Helens · 8.8 mi N
- Portland Morrison Street Bridge · 16.5 mi S
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 3.9 ft — Sat Jun 5 · 6:36 AM
Lowest predicted low tide: -0.7 ft — Mon Jul 5 · 2:49 PM
Biggest single-day swing: 4.5 ft on Sat Jun 5
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jul 5 | 2:49 PM | -0.7 ft |
| Sun Jun 6 | 3:15 PM | -0.7 ft |
| Sun Jul 4 | 2:05 PM | -0.7 ft |
| Sat Jun 5 | 2:28 PM | -0.7 ft |
| Mon Jun 7 | 4:02 PM | -0.6 ft |
| Tue Jul 6 | 3:33 PM | -0.6 ft |
| Sat Jul 3 | 1:20 PM | -0.6 ft |
| Fri Jun 4 | 1:41 PM | -0.6 ft |
| Mon Aug 2 | 1:35 PM | -0.5 ft |
| Tue Aug 3 | 2:16 PM | -0.5 ft |
204 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
Knapp Landing, Willow Bar is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
Puget Sound and the Columbia estuary amplify mixed tides far inland — ranges past 10 ft in the South Sound — with river flow stacked on top.