Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 281200UTC, low 41 north 27 west 995 expected 51 north 16 west 972 by 291200UTC. Low 52 north 22 west 990 expected 59 north 14 west by same time. High 54 north 01 east 1022 expected southern Sweden 1031 by that time. at 281200UTC, low 61 north 42 west 1002 losing its identity

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
South or southeast 5 to 7, increasing 7 to severe gale 9, veering west or southwest 6 to gale 8 later.
Sea state
Moderate or rough, becoming rough or very rough later.
Weather
Rain or thundery showers.
Visibility
Good, occasionally poor.

Shannon

Wind
Southeast 6 to gale 8, becoming cyclonic 7 to severe gale 9 later.
Sea state
Rough, becoming very rough later, occasionally high later in west.
Weather
Showers, squally rain later.
Visibility
Good, occasionally poor.

Rockall

Wind
Southeast 6 to gale 8, becoming cyclonic 7 to severe gale 9 later.
Sea state
Rough, becoming very rough later, occasionally high later in west.
Weather
Showers, squally rain later.
Visibility
Good, occasionally poor.

Bailey

Wind
South 4 or 5, backing southeast 6 to gale 8.
Sea state
Rough, becoming very rough later.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Faeroes

Wind
Southwesterly 4 to 6, backing easterly or southeasterly 5 to 7, perhaps gale 8 later.
Sea state
Moderate or rough, occasionally very rough later.
Weather
Squally showers.
Visibility
Good, occasionally poor.

Southeast Iceland

Wind
Southwesterly 4 to 6, backing easterly or southeasterly 5 to 7, perhaps gale 8 later.
Sea state
Moderate or rough, occasionally very rough later.
Weather
Squally showers, then rain in.
Visibility
Good, occasionally poor.

East Northern Section

In northern half of area

Wind
Cyclonic 4 to 6, increasing 6 to gale 8.
Sea state
Moderate or rough, becoming rough or very rough later.
Weather
Rain or squally showers.
Visibility
Moderate or good, occasionally poor.

In southern half of area

Wind
Cyclonic 6 to gale 8, increasing severe gale 9 later in south.
Sea state
Moderate or rough, becoming rough or very rough occasionally high later in far southeast.
Weather
Rain or squally showers.
Visibility
Moderate or good, occasionally poor.

West Northern Section

Wind
Cyclonic, mainly northerly, 4 to 6, increasing 6 to gale 8 later in east.
Sea state
Moderate or rough, occasionally very rough in far northeast.
Weather
Showers, wintry in far northwest.
Visibility
Good occasionally moderate, but poor in far northwest.

East Central Section

In northern half of area

Wind
Cyclonic 6 to gale 8, but 4 to 6 at first in west, increasing gale 8 or severe gale 9 later.
Sea state
Rough or very rough occasionally high later in far northeast.
Weather
Rain or thundery showers.
Visibility
Moderate or good, occasionally poor.

In southern half of area

Wind
Cyclonic, mainly westerly later, 6 to gale 8.
Sea state
Rough or very rough.
Weather
Rain or thundery showers.
Visibility
Moderate or good, occasionally poor.

West Central Section

Wind
Cyclonic becoming northerly or northwesterly 6 to gale 8, decreasing 4 to 6 later in west.
Sea state
Rough or very rough.
Weather
Rain or showers, thundery at first in east.
Visibility
Good occasionally moderate, but poor at first in east.

Denmark Strait

Wind
Variable 2 to 4 in far southwest and far north, otherwise northeasterly 4 to 6, increasing 7 to severe gale 9 later.
Sea state
Mainly very rough or very rough, but slight or moderate near greenland coast.
Weather
Occasional rain or sleet at first, occasionally snow later.
Visibility
Moderate or good, occasionally poor, but very poor later.

North Iceland

In northern half of area

Wind
Cyclonic 4 to 6.
Sea state
Rough becoming moderate later.
Weather
Showers, occasional rain in south, wintry later in north.
Visibility
Good, occasionally poor.

In south of area

Wind
Cyclonic 4 to 6, increasing 6 to gale 8 later in northwest.
Sea state
Rough, occasionally very rough at first.
Weather
Occasional rain.
Visibility
Good, occasionally poor.

Norwegian Basin

Wind
Southwesterly backing southeasterly 4 to 6.
Sea state
Rough, occasionally very rough at first in far north, becoming moderate or rough later.
Weather
Squally showers at first.
Visibility
Good occasionally poor at first.

Outlook for the following 24 hours

Violent storms expected in East Northern Section, East Central Section and Denmark Strait. Risk of storms in Rockall and Bailey. Severe gales expected in Shannon and West Northern Section. Gales expected in all other area.

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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