Last Update: 410 PM AKDT Fri Sep 18 2026

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Juneau, AK Local Forecast Office

66NM SSW Cape Spencer AK

Marine Zone Forecast

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT... ...SMALL CRAFT ADVISORY SATURDAY...

Synopsis: Southerly to easterly winds will continue tonight as the low lifts north into the Gulf through tonight. This has increased winds to around 30 to 35 kts and build seas to 8 to 14 ft for the Gulf and outer coastal water. The inner channels will see S winds around 15 to 25 kts. Elevated marine conditions continue into Saturday night and Sunday as another large and strong low lifts into the Gulf increasing to winds across the gulf and inner channels to around 30 to 40 kts.

Tonight
S wind 30 kt diminishing to 20 kt late. Seas 10 ft subsiding to 7 ft. Showers early in the evening.
Sat
S wind 25 kt. Seas building to 8 ft. Showers in the afternoon.
Sat Night
S gale to 35 kt. Seas 12 ft building to 19 ft late. Showers. Slight chance of thunderstorms late.
Sun
S gale to 35 kt. Seas 22 ft. Showers and slight chance of thunderstorms.
Sun Night
S wind 30 kt. Seas 20 ft. Showers and slight chance of thunderstorms.
Mon
SW wind 20 kt. Seas 11 ft.
Tue
SE wind 30 kt. Seas 8 ft.
Wed
SE wind 20 kt. Seas 9 ft.



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410 PM AKDT Fri Sep 18 2026
 
 

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