Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 031200UTC, low 58 north 23 west 985 expected 61 north 07 west 988 by 041200UTC. New low expected 42 north 37 west 1000 by same time. High 73 north 03 west 1017 dissipating by that time.

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Westerly or southwesterly 4 to 6, occasionally 7, becoming variable 3 or 4.
Sea state
Moderate or rough.
Weather
Occasional rain.
Visibility
Good, occasionally poor.

Shannon

Wind
Southwest veering west 5 to 7.
Sea state
Rough or very rough.
Weather
Showers.
Visibility
Good, occasionally poor.

Rockall

Wind
Southwest veering west 6 to gale 8.
Sea state
Rough or very rough becoming very rough or high.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Bailey

Wind
Cyclonic becoming westerly 6 to gale 8, perhaps severe gale 9 later in southeast.
Sea state
Rough or very rough, occasionally high in south.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Faeroes

Wind
Southwest 4 or 5 becoming cyclonic 5 to 7.
Sea state
Moderate or rough, becoming very rough later in south.
Weather
Showers.
Visibility
Good, occasionally poor.

Southeast Iceland

Wind
Easterly 6 to gale 8 at first in far west, otherwise cyclonic 4 to 6.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good, occasionally poor.

East Northern Section

Wind
Westerly or southwesterly 7 to severe gale 9 at first in far south, otherwise cyclonic becoming northwesterly 5 to 7, occasionally 4 later in northwest.
Sea state
Rough or very rough, occasionally high at first in far south, becoming moderate or rough.
Weather
Occasional rain then showers.
Visibility
Moderate or good, occasionally poor at first.

West Northern Section

Wind
Cyclonic, mainly northerly or northwesterly, 4 to 6, occasionally 7 at first in far southeast.
Sea state
Moderate or rough, occasionally very rough at first in southeast.
Weather
Occasional rain or showers.
Visibility
Good, occasionally poor.

East Central Section

In north

Wind
Westerly 6 to gale 8, decreasing 3 to 5 later.
Sea state
Rough or very rough, occasionally high at first in far north.
Weather
Showers.
Visibility
Good, occasionally poor.

In south

Wind
Cyclonic 4 to 6, becoming variable 3 or 4 for a time, occasionally 7 later in far west.
Sea state
Moderate or rough.
Weather
Occasional rain, fog patches in south.
Visibility
Moderate or good, occasionally very poor in south.

West Central Section

In north

Wind
Westerly backing southwesterly 4 to 6, occasionally 7 at first in far northeast.
Sea state
Moderate or rough, occasionally very rough at first in northeast.
Weather
Showers.
Visibility
Good, occasionally moderate.

In south

Wind
Cyclonic, mainly northeasterly, 3 to 5, increasing 6 to gale 8.
Sea state
Moderate or rough, occasionally very rough later in south.
Weather
Thundery rain in south.
Visibility
Good, occasionally poor in south.

Denmark Strait

Wind
Northerly or northeasterly 6 to gale 8, occasionally 5 at first in west, occasionally severe gale 9 later.
Sea state
Moderate or rough becoming rough or very rough.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

North Iceland

In area north of 71 north

Wind
Variable 2 to 4.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Mainly fair. Good.

In area south of 71 north

Wind
Easterly or northeasterly 5 to 7, becoming cyclonic 4 or 5 in south.
Sea state
Moderate or rough.
Weather
Rain at times, fog patches in south.
Visibility
Moderate or good, occasionally very poor in south.

Norwegian Basin

Wind
Easterly or southeasterly 3 to 5, occasionally 6 in west.
Sea state
Moderate or rough.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours

Severe gales expected in West Central Section and Denmark Strait with gales expected in West Northern Section and West Central Section.

Unscheduled storm warnings are broadcast via Safetynet and in bulletin WONT54 EGRR available via some internet and ftpmail outlets

High seas forecast information

High seas forecasts are issued twice daily at 0930 and 2130 GMT and cover the next 24 hours and outlooks for the following 24 hours.

The part of the North Atlantic known as Metarea I is divided into twelve sea areas, six of which are also in the Shipping forecast.

The high seas forecast contains a general synopsis and sea-area forecasts containing forecast wind direction and force, weather and visibility for the next 24 hours with an outlook for the following 24 hours.

Marine forecasts disclaimer

In the UK, the Maritime & Coastguard Agency (MCA) is responsible for the provision of Maritime Safety Information (MSI) to ships at sea, which includes the broadcast of warnings and forecasts. The Met Office initiates warnings and prepares routine forecasts for dissemination on behalf of the MCA.

Caution: The internet is not part of the Maritime Safety Information system and should never be relied upon as the only means to obtain the latest forecast and warning information. Access to the service may be interrupted or delayed from time to time, updates may also be delayed.

Please refer to GMDSS services, INMARSAT SafetyNET or international NAVTEX for the latest information. When using these web pages, always check that the page on your screen is not from your cache. Use the Refresh or Reload button if in any doubt.

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