Tide station · Alaska

Alva Bay, Revillagigedo Island tides

Times are local (America/Sitka, GMT-9). Predicted tides, not live water levels. Not for navigation.

Right now

Rising

Next high 2:52 AM, 12.9 ft (3.93 m), in 40 min.

Today · Fri, Nov 13

  • High2:52 AM12.9 ft 3.93 m
  • Low8:16 AM5.2 ft 1.59 m
  • High2:13 PM14.7 ft 4.47 m
  • Low8:59 PM0.9 ft 0.28 m

Next 7 days

02468101214Fri, Nov 13Sat, Nov 14Sun, Nov 15Mon, Nov 16Tue, Nov 17Wed, Nov 18Thu, Nov 19
Feet · orange dots are highs, black dots are lows
High and low tides for the next seven days
DayTides (local time, height)
Fri, Nov 13
  • H 2:52 AM · 12.9 ft
  • L 8:16 AM · 5.2 ft
  • H 2:13 PM · 14.7 ft
  • L 8:59 PM · 0.9 ft
Sat, Nov 14
  • H 3:35 AM · 12.2 ft
  • L 8:57 AM · 5.8 ft
  • H 2:53 PM · 13.8 ft
  • L 9:42 PM · 1.7 ft
Sun, Nov 15
  • H 4:25 AM · 11.7 ft
  • L 9:48 AM · 6.3 ft
  • H 3:41 PM · 12.8 ft
  • L 10:33 PM · 2.5 ft
Mon, Nov 16
  • H 5:23 AM · 11.4 ft
  • L 10:55 AM · 6.6 ft
  • H 4:41 PM · 11.9 ft
  • L 11:31 PM · 3.0 ft
Tue, Nov 17
  • H 6:26 AM · 11.6 ft
  • L 12:18 PM · 6.3 ft
  • H 5:57 PM · 11.3 ft
Wed, Nov 18
  • L 12:34 AM · 3.3 ft
  • H 7:24 AM · 12.3 ft
  • L 1:34 PM · 5.3 ft
  • H 7:16 PM · 11.3 ft
Thu, Nov 19
  • L 1:34 AM · 3.4 ft
  • H 8:13 AM · 13.2 ft
  • L 2:35 PM · 3.8 ft
  • H 8:27 PM · 11.8 ft

About this station

Alva Bay, Revillagigedo Island is a NOAA subordinate station in Alaska: its highs and lows are offsets from Ketchikan. Heights are feet above mean lower low water (MLLW).

Tide type: Semidiurnal: two highs and two lows a day, close to the same size.

This week the biggest swing between high and low is 13.8 ft; the average swing is 8.2 ft.

Station facts

Station ID
9450382
Source
NOAA CO-OPS
Type
Subordinate station
Reference station
Ketchikan
Coordinates
55.2283, -131.1330
Datum
MLLW (mean lower low water)
Tide type
Semidiurnal
Time zone
America/Sitka

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Nearby wave buoys

Tide predictions from NOAA CO-OPS (tidesandcurrents.noaa.gov).

Licence: U.S. public domain (NOAA). Predictions are astronomical tides only: wind, swell and pressure move real water. Not for navigation.