Trinity House Notice to Mariners 14/2020

Trwyn Du Lighthouse

Latitude 53º 18.777’N., Longitude 004º 02.440’W.

Date: On or about 17th August, 2020.


  1. Nominal range of navigation light to be reduced to 9 nautical miles. Characteristics and composition remain unaltered.
  2. New Fog signal to be exhibited giving 1 blast of 3 seconds duration every 30 seconds.

No further notice will be given.

By Order,

Captain R.H.Barker,
Director of Navigational Requirements.

Trinity House,
21st July, 2020.

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