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Sumner Island, 1.8 miles south of

Sumner Island, 1.8 miles south of Currents

Marine warnings are in force for this area. The current is flooding at 0.9 kt. Peaking at 1.0 kt at 7:03 AM. Current predictions are astronomical, so the weather in those warnings can strengthen or weaken the actual flow.

Last Current - Slack

4:46 AM

AKDT

1 hour, 45 minutes ago

Next Current - Flood

7:03 AM

AKDT

N

1.0 kt

31 minutes from now

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Following Current - Slack

12:53 PM

AKDT

6 hours, 21 minutes from now

Today

🌊 Currents

Ebb

3:05 AM

WSW

0.7 kt

Slack

4:46 AM

Flood

7:03 AM

N

1.0 kt

Slack

12:53 PM

Ebb

3:33 PM

WSW

0.6 kt

Slack

5:03 PM

Flood

7:13 PM

N

0.9 kt

🌤️ Marine Weather

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Tomorrow

🌊 Currents

Slack

12:34 AM

Ebb

3:39 AM

WSW

0.8 kt

Slack

5:20 AM

Flood

7:39 AM

N

1.1 kt

Slack

1:18 PM

Ebb

4:03 PM

WSW

0.7 kt

Slack

5:36 PM

Flood

7:49 PM

N

1.0 kt

🌤️ Marine Weather

Friday - August 28, 2026

🌊 Currents

Slack

1:11 AM

Ebb

4:10 AM

WSW

0.8 kt

Slack

5:50 AM

Flood

8:12 AM

N

1.1 kt

Slack

1:47 PM

Ebb

4:33 PM

WSW

0.7 kt

Slack

6:06 PM

Flood

8:23 PM

N

1.1 kt

🌤️ Marine Weather

Saturday - August 29, 2026

🌊 Currents

Slack

1:48 AM

Ebb

4:39 AM

WSW

0.8 kt

Slack

6:18 AM

Flood

8:44 AM

N

1.2 kt

Slack

2:18 PM

Ebb

5:00 PM

WSW

0.8 kt

Slack

6:35 PM

Flood

8:58 PM

N

1.1 kt

🌤️ Marine Weather

Sunday - August 30, 2026

🌊 Currents

Slack

2:26 AM

Ebb

5:00 AM

WSW

0.8 kt

Slack

6:45 AM

Flood

9:16 AM

N

1.2 kt

Slack

2:51 PM

Ebb

5:16 PM

WSW

0.8 kt

Slack

7:04 PM

Flood

9:34 PM

N

1.1 kt

🌤️ Marine Weather

Monday - August 31, 2026

🌊 Currents

Slack

3:05 AM

Ebb

5:11 AM

WSW

0.8 kt

Slack

7:13 AM

Flood

9:51 AM

N

1.1 kt

Slack

3:26 PM

Ebb

5:29 PM

WSW

0.8 kt

Slack

7:37 PM

Flood

10:12 PM

N

1.1 kt

🌤️ Marine Weather

Tuesday - September 1, 2026

🌊 Currents

Slack

3:47 AM

Ebb

5:39 AM

WSW

0.8 kt

Slack

7:45 AM

Flood

10:29 AM

N

1.0 kt

Slack

4:05 PM

Ebb

6:00 PM

WSW

0.8 kt

Slack

8:16 PM

Flood

10:55 PM

N

1.0 kt

🌤️ Marine Weather

7-Day Insights

Current Extremes

Fastest Flood

Sat, Aug 29

1.2 kt at 8:44 AM

Unusually fast

Fastest Ebb

Thu, Aug 27

0.8 kt at 3:39 AM

Faster than usual

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Peak Daily Currents

Fastest

Sat, Aug 29

1.2 kt max current

Faster than usual

Slowest

Wed, Aug 26

1.0 kt max current

Typical