Know the Tide

Know the tide.

Alaska

Nossuk Bay

Tonowek Bay · Alaska · NOAA station 9450711 · Tide predictions

· Alaska Time · Feet / MLLW (mean lower low water)

55.7217, -133.3500

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48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

The next seven days

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H = high tide · L = low tide · highs & lows in local time

On the water nearby

Central Dixon Entrance Buoy buoy · 100 mi S · Station 46145
Wind & wave reports →

Last light, longer plans
Daylight calendar for Wrangell → Alaska Daylight · Northern lights forecast for Wrangell → Alaska Aurora Forecast

Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 12.4 ft — Fri Jan 22 · 12:00 PM

Lowest predicted low tide: -2.5 ft — Fri Jan 22 · 6:46 PM

Biggest single-day swing: 14.9 ft on Fri Jan 22

Best daytime minus tides of 2027
DateLow tideHeight
Fri Jan 226:46 PM-2.5 ft
Mon Jul 58:23 AM-2.5 ft
Sun Jul 47:37 AM-2.4 ft
Sun Jun 68:34 AM-2.4 ft
Sat Jun 57:49 AM-2.3 ft
Thu Jan 216:01 PM-2.3 ft
Tue Jul 69:07 AM-2.2 ft
Mon Aug 27:21 AM-2.2 ft
Mon Jun 79:21 AM-2.2 ft
Tue Aug 38:04 AM-2.1 ft

173 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

Nossuk Bay, Tonowek Bay 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.

Alaska holds the country's most extreme tides: Inside Passage channels, Cook Inlet swings past 30 ft, and Arctic stations where the tide is measured in inches and wind setup runs the show.

Diurnal range10.4 ft
Mean range8.2 ft
RegionAlaska
NOAA chart17404
Station since2007