Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 151200UTC, low north Hebrides 970 expected south Hebrides 982 by 161200UTC. Low Shannon 981 expected Fitzroy 996 by same time. Low 59 north 40 west 1003 losing its identity by that time. at 151200UTC, high 64 north 44 west 1022 expected 62 north 38 west 1028 by 161200UTC.

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Westerly or southwesterly, 6 to gale 8, becoming variable 3 or less later.
Sea state
Very rough or high.
Weather
Squally showers.
Visibility
Good occasionally poor.

Shannon

Wind
West 6 to gale 8, becoming variable 2 to 4.
Sea state
Very rough or high.
Weather
Showers.
Visibility
Good.

Rockall

Wind
Westerly or northwesterly 5 to 7, occasionally gale 8 at first in north.
Sea state
Very rough or high.
Weather
Showers.
Visibility
Good occasionally poor.

Bailey

Wind
Cyclonic 6 to gale 8, becoming north or northeast 4 to 6 later.
Sea state
Very rough or high, occasionally rough later.
Weather
Wintry showers.
Visibility
Good occasionally poor.

Faeroes

Wind
Cyclonic 5 to 7, becoming northeast 3 to 5 later.
Sea state
Rough or very rough, occasionally moderate later.
Weather
Showers.
Visibility
Moderate or good.

Southeast Iceland

Wind
Northeasterly 6 to gale 8, perhaps severe gale 9 later.
Sea state
Rough or very rough, occasionally high later.
Weather
Occasional sleet.
Visibility
Moderate occasionally poor.

East Northern Section

In north

Wind
Northerly 4 to 6, veering northwesterly 6 to gale 8 later.
Sea state
Moderate or rough, occasionally very rough later in north.
Weather
Snow showers.
Visibility
Good, occasionally poor.

In south

Wind
Northerly 4 to 6, occasionally 7 at first in east.
Sea state
Rough or very rough.
Weather
Snow showers.
Visibility
Good, occasionally poor.

West Northern Section

In north

Wind
Northerly 4 to 6, veering northwesterly 6 to gale 8 later.
Sea state
Moderate or rough, becoming very rough or high later.
Weather
Snow showers.
Visibility
Good, occasionally poor.

In south

Wind
Northwesterly 5 to 7, veering westerly 6 to gale 8 later.
Sea state
Rough or very rough, occasionally moderate later.
Weather
Occasional sleet or snow.
Visibility
Moderate or poor.

East Central Section

Wind
Northerly or northwesterly 6 to gale 8, becoming variable 3 or less later.
Sea state
Very rough or high, occasionally moderate later in north.
Weather
Wintry showers.
Visibility
Good, occasionally poor.

West Central Section

Wind
Northwesterly 5 to 7, becoming cyclonic 6 to gale 8 later, perhaps severe gale 9 later in north.
Sea state
Very rough or high, occasionally rough later in north.
Weather
Snow showers then rain.
Visibility
Moderate, occasionally poor.

Denmark Strait

Wind
North or northeast 7 to severe gale 9, decreasing 5 to 7 later.
Sea state
Rough or very rough, occasionally high in south.
Weather
Sleet or snow.
Visibility
Moderate or poor. Light tor moderate icing with temperatures ms04 to ms11.

North Iceland

Wind
Northerly or northeasterly 6 to gale 8.
Sea state
Rough or very rough.
Weather
Occasional rain or snow.
Visibility
Moderate or poor. Light to moderate icing in northwest with temperatures ms03 to ms08.

Norwegian Basin

Wind
Cyclonic 3 to 5.
Sea state
Moderate or rough.
Weather
Snow showers.
Visibility
Good, occasionally poor.

Outlook for following 24 hours

Gales or severe gales expected in all areas expected Rockall, Faeroes and Norwegian Basin.

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

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.

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.