Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 030000UTC, low 51 north 15 west 1004 expected 54 north 11 west with little change by 040000UTC. High 58 north 32 west 1026 expected 53 north 38 west 1028 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Cyclonic mainly southwesterly, 3 to 5, occasionally 6 later in west.
Sea state
Moderate, occasionally slight at first in east, becoming rough at times later in west.
Weather
Showers, thundery at first.
Visibility
Good, occasionally poor.

Shannon

Wind
Cyclonic 4 to 6, decreasing 3 at times, but occasionally 7 at first in far north.
Sea state
Moderate or rough.
Weather
Thundery showers, fog patches.
Visibility
Moderate or good, occasionally very poor.

Rockall

Wind
Northeast 4 to 6, increasing 7 at times.
Sea state
Moderate or rough.
Weather
Rain.
Visibility
Good, occasionally poor.

Bailey

Wind
In southeast, northeasterly 4 to 6, occasionally 3 at first and 7 later. in northwest, variable 2 to 4.
Sea state
In southeast, moderate, occasionally rough later. in northwest, moderate.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Variable 2 to 4, becoming northeasterly 4 to 6 later in south.
Sea state
Moderate occasionally slight.
Weather
Showers.
Visibility
Good.

Southeast Iceland

Wind
Variable 2 to 4.
Sea state
Moderate occasionally slight.
Weather
Showers.
Visibility
Good.

East Northern Section

In north

Wind
Variable becoming westerly or northwesterly, 2 to 4, occasionally 5 later in northeast.
Sea state
Slight, occasionally moderate in south and east.
Weather
Showers.
Visibility
Good.

In south

Wind
Northerly or northeasterly 4 or 5, occasionally 6 in southeast, backing northwesterly 3 or 4 in northwest.
Sea state
Moderate, occasionally slight in northwest and rough in southeast.
Weather
Showers.
Visibility
Good, occasionally moderate.

West Northern Section

In east

Wind
Westerly or southwesterly 3 or 4.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good, occasionally moderate later.

In west

Wind
Southwesterly 3 to 5, occasionally 6 in south, becoming cyclonic 2 to 4 later in north.
Sea state
Slight or moderate, occasionally rough later.
Weather
Showers, fog patches in far northwest and later elsewhere.
Visibility
Moderate or good, occasionally very poor in far northwest and later elsewhere.

East Central Section

In northeast

Wind
Cyclonic 3 to 5 at first in far southeast, otherwise northerly or northeasterly 5 or 6, occasionally 7 at first and 4 later.
Sea state
Moderate or rough.
Weather
Occasional rain, then showers, fog patches at first in far southeast.
Visibility
Moderate or good, occasionally very poor at first in far southeast and poor at first elsewhere.

In southeast

Wind
Cyclonic 3 to 5 at first in east, otherwise northwesterly 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain then showers.
Visibility
Moderate or good, occasionally poor at first.

In west

Wind
Northerly or northeasterly 4 or 5, occasionally 6 at first.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good.

West Central Section

In north

Wind
Northerly or northeasterly 3 to 5 in far east, otherwise variable 2 to 4.
Sea state
Moderate, occasionally slight in northwest.
Weather
Showers.
Visibility
Good.

In south

Wind
Easterly or northeasterly 4 or 5, occasionally 6 in far south.
Sea state
Moderate.
Weather
Showers.
Visibility
Good, occasionally moderate at first in far south.

Denmark Strait

Wind
Southerly 3 to 5 in far northeast, otherwise westerly or southwesterly, becoming variable later, 2 to 4.
Sea state
Slight or moderate.
Weather
Fog patches.
Visibility
Moderate or good, occasionally very poor.

North Iceland

In southeastern half of area

Wind
Northerly or northwesterly 3 to 5, becoming variable 2 to 4.
Sea state
Moderate, becoming mainly slight.
Weather
Showers, fog patches at first in west and far east.
Visibility
Moderate or good, occasionally very poor at first in west and far east.

In northwestern half of area

Wind
Variable 2 to 4, becoming southerly or southwesterly 3 to 5.
Sea state
Slight or moderate.
Weather
Fog patches in west.
Visibility
Moderate or good, occasionally very poor in west.

Norwegian Basin

In east

Wind
Westerly or southwesterly 4 to 6, becoming variable 2 to 4 later except in northeast.
Sea state
Moderate, becoming slight later.
Weather
Showers.
Visibility
Moderate or good, occasionally poor at first.

In west

Wind
Westerly or northwesterly 4 or 5, decreasing 2 to 4, then becoming variable later.
Sea state
Moderate, occasionally rough at first and slight later.
Weather
Showers.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours

Gales expected in Rockall with a risk of gales in Bailey.

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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