Glossary Archive

When a rope passes around an object, such as a post, when tying a knot.

Sea area of the Met Office Shipping Forecast. Covers the southwestern North Sea, off the River Tyne estuary in northeast England. From the River Tyne estuary (Brythonic origin), Tyne typically has moderate northwesterlies of Force 3–5 and slight seas, with stronger winds in autumn and winter. A North Sea surge in January 1953 caused high...

A region of the Earth where the same standard time is used. A time zone is a geographical area that observes a uniform standard time for legal, commercial, and social purposes. The Earth is divided into 24 primary time zones, each generally corresponding to 15 degrees of longitude, reflecting the Earth's rotation and the division...

The International Maritime Signal Flag Uniform. Meaning You are running into danger.

The UK government agency responsible for producing nautical charts, publications, and navigational information to support safe maritime navigation.  The UK Hydrographic Office is an executive agency of the UK Ministry of Defence, providing hydrographic and geospatial data for both military and commercial maritime use. It produces and maintains Admiralty charts and publications, which are widely...

The UK government agency responsible for producing nautical charts, publications, and navigational information to support safe maritime navigation.  The UK Hydrographic Office is an executive agency of the UK Ministry of Defence, providing hydrographic and geospatial data for both military and commercial maritime use. It produces and maintains Admiralty charts and publications, which are widely...

The global numerical weather prediction model developed by the United Kingdom Met Office, providing forecasts for various weather parameters worldwide.  The UKMO Global model is a sophisticated numerical weather prediction system developed by the United Kingdom Met Office. It utilises advanced mathematical equations to simulate the Earth's atmosphere and predict future weather conditions globally. This...

The global numerical weather prediction model developed by the United Kingdom Met Office, providing forecasts for various weather parameters worldwide.  The UKMO Global model is a sophisticated numerical weather prediction system developed by the United Kingdom Met Office. It utilises advanced mathematical equations to simulate the Earth's atmosphere and predict future weather conditions globally. This...

A high-resolution numerical weather prediction model used by the UK Met Office to provide detailed weather forecasts for the United Kingdom and surrounding areas.  The United Kingdom Variable-resolution model (UKV) is a sophisticated numerical weather prediction model developed by the UK Met Office to provide high-resolution forecasts for the United Kingdom and surrounding regions. The...

Flag semaphore indicating the letter U.