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East Brother Island Light

 
Location: Point San Pablo near Richmond, CA

Local Marine Forecast.


Small Craft Advisory is in effect until August 16 at 9:00PM PDT by NWS
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT THIS EVENING... A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT THIS EVENING. * WINDS AND WAVES: SEE THE COASTAL WATERS FORECAST (CWFMTR) OR OUR MARINE PAGE AT HTTP://WEATHER.GOV/SANFRANCISCO/MARINE.PHP

About East Brother Island Light

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The location of the light is Point San Pablo. The nearest city is Richmond, CA. The station was first established in 1874. The current lighthouse was first lit in 1874.

The lighthouse is a buff square tower.

The tower has a flashing white light at a focal plane height of 61 ft above mean high water. The light has a nominal range of 14 nautical miles. The tower height is 49 ft. The light has a period of 5 seconds.

Open to the Public?: By Appointment    Active?: Yes

Identification number: 6-5865 (U.S.)

The light was automated in 1969.

HORN: 1 blast ev 30s (3s bl), operates continuously from Oct. 1 to Apr. 1

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.

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