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Isles of Shoals (White Island) Light

 
Location: White Island / Piscataqua River Entrance near Portsmouth, NH

About Isles of Shoals (White Island) Light

The location of the light is White Island / Piscataqua River Entrance. The nearest city is Portsmouth, NH. The station was first established in 1790. The current lighthouse was first lit in 1865.

The lighthouse is a white conical tower.

The tower has a flashing white light at a focal plane height of 82 ft above mean high water. The light has a nominal range of 14 nautical miles. The tower height is 82 ft. The light has a period of 15 seconds.

Open to the Public?: No    Active?: Yes

Identification number: 1-235 (U.S.)

Emergency light of reduced intensity when main light is extinguished.
HORN: 1 blast ev 30s (3s bl). Operates continuously.

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 15 second period, the light is on for less than 7.5 then off for more than 7.5.


Today's Conditions on Site

Astronomical Info.

Astronomical Dawn: 5:29 am
Sunrise: 7:08 am
Sunset: 4:40 pm
Astronomical Dusk: 6:20 pm

Local Marine Forecast.


Gale Warning is in effect until January 23 at 11:00PM EST by NWS
...GALE WARNING REMAINS IN EFFECT FROM NOON TODAY TO 11 PM EST THIS EVENING... * WINDS...South 20 to 30 kt with gusts up to 45 kt. * SEAS...6 to 11 feet.

Additional Conditions.

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