Tide station · Alaska

Chowiet Island, Semidi Island tides

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

Right now

Rising

Next high 4:45 AM, 7.2 ft (2.19 m), in 2 h 23 min.

Today · Fri, Nov 13

High4:45 AM7.2 ft 2.19 m
Low9:45 AM4.2 ft 1.27 m
High3:40 PM8.8 ft 2.69 m
Low10:46 PM0.0 ft 0.01 m

Next 7 days

Feet · orange dots are highs, black dots are lows

High and low tides for the next seven days
Day	Tides (local time, height)
Fri, Nov 13	H 4:45 AM · 7.2 ft L 9:45 AM · 4.2 ft H 3:40 PM · 8.8 ft L 10:46 PM · 0.0 ft
Sat, Nov 14	H 5:31 AM · 6.9 ft L 10:21 AM · 4.5 ft H 4:17 PM · 8.3 ft L 11:27 PM · 0.6 ft
Sun, Nov 15	H 6:22 AM · 6.7 ft L 11:08 AM · 4.7 ft H 5:00 PM · 7.7 ft
Mon, Nov 16	L 12:14 AM · 1.1 ft H 7:19 AM · 6.6 ft L 12:16 PM · 4.8 ft H 6:00 PM · 7.1 ft
Tue, Nov 17	L 1:08 AM · 1.6 ft H 8:15 AM · 6.8 ft L 1:54 PM · 4.6 ft H 7:23 PM · 6.5 ft
Wed, Nov 18	L 2:09 AM · 2.0 ft H 9:05 AM · 7.2 ft L 3:21 PM · 3.9 ft H 8:50 PM · 6.4 ft
Thu, Nov 19	L 3:09 AM · 2.3 ft H 9:48 AM · 7.8 ft L 4:22 PM · 2.8 ft H 10:08 PM · 6.5 ft

About this station

Chowiet Island, Semidi Island is a NOAA reference station in Alaska, with its own harmonic constants. Heights are feet above mean lower low water (MLLW).

Tide type: Mixed, mostly semidiurnal: two highs and two lows a day, one pair noticeably bigger than the other.

This week the biggest swing between high and low is 8.8 ft; the average swing is 4.3 ft.

Station facts

Station ID: 9458519
Source: NOAA CO-OPS
Type: Reference station
Coordinates: 56.0517, -156.6980
Datum: MLLW (mean lower low water)
Tide type: Mixed, mostly semidiurnal
Time zone: America/Anchorage

Chowiet Island, Semidi Island tides

Next 7 days

About this station

Station facts

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