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Cape Decision Light

Location: S Kuiu Island / Sumner Strait near Petersburg, AK

About Cape Decision Light


The location of the light is S Kuiu Island / Sumner Strait. The nearest city is Petersburg, AK. The station was first established in 1932. The current lighthouse was first lit in 1932. The light has a nominal range of 18 nautical miles. The tower height is 75 ft. The light has a period of 5 seconds.

Open to the Public?: No    Active?: Yes

Identification number: 6-1020 (U.S.)

White art deco marking, Obscured from 134 to 245. Emergency light (Fl W 5s) of reduced intensity if main light is extinguished.

A 'flashing' light is a light in which the total duration of light in a period is shorter than the total duration of darkness and the appearances of light (flashes) are usually of equal duration. So in the 5 second period, the light is on for less than 2.5 then off for more than 2.5.

Cape Decision Light was listed on the National Register of Historic Places on Feb. 2, 2005, reference number 04001568.

Source: USCG

Today's Conditions on Site

Astronomical Info.

Astronomical Dawn: 6:00 am
Sunrise: 8:16 am
Sunset: 4:00 pm
Astronomical Dusk: 6:15 pm

Local Marine Forecast.

Small Craft Advisory 
Southeast Alaska Coastal Waters from Dixon Entrance to Cape Suckling out 100 NM Wind forecasts reflect the predominant speed and direction expected. Seas forecasts represent the average of the highest one-third of the combined windwave and swell height. ...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

Additional Conditions.

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