Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 281200UTC, low 53 north 40 west 983 expected 62 north 36 west 982 by 291200UTC. Low 70 north 13 west 988 expected 78 north 13 west 995 by same time. Low 45 north 38 west 974 moving rather quickly east-northeast and losing its identity by that time. at 281200UTC, low 63 north 15 west 1001, slow-moving, losing its identity by 291200UTC

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Westerly or northwesterly, backing southerly, 4 to 6, occasionally 7 in west.
Sea state
Rough or very rough.
Weather
Rain developing.
Visibility
Good, occasionally poor.

Shannon

Wind
Northwest 3 to 5, backing south or southeast 5 to 7, perhaps gale 8 later.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Rain developing.
Visibility
Good, occasionally poor.

Rockall

Wind
Northwest 3 to 5, backing south or southeast 5 to 7, perhaps gale 8 later.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Rain developing.
Visibility
Good, occasionally poor.

Bailey

Wind
Northwest, backing southeast later, 4 to 6, occasionally 7 later.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Showers, rain later.
Visibility
Good, occasionally moderate.

Faeroes

Wind
South or southwest, occasionally cyclonic, 3 to 5.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Showers.
Visibility
Good.

Southeast Iceland

Wind
Cyclonic 4 to 6.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Showers.
Visibility
Moderate or good.

East Northern Section

In northeast half of area

Wind
Cyclonic 3 to 5, becoming southerly or southeasterly 6 to gale 8.
Sea state
Moderate or rough, becoming rough or very rough later.
Weather
Rain later.
Visibility
Good, becoming moderate or poor later.

In southwest half of area

Wind
Southerly 4 or 5 at first in north, otherwise southeasterly 6 to gale 8, veering southerly or southwesterly 3 to 5 later except in far north.
Sea state
Moderate or rough, becoming rough or very rough.
Weather
Fair at first in northeast, otherwise rain and fog patches.
Visibility
Good at first in northeast, otherwise moderate to very poor.

West Northern Section

High seas storm warning
Issued:

At 281200UTC, low 53 north 40 west 983 expected 62 north 36 west 982 by 291200UTC. Northeasterly winds will reach storm force 10 in the far southwest of Denmark Strait after 2910000UTC and in the far northwest of West Northern Section after 291200UTC.

In north

Wind
Southerly or southeasterly 3 to 5, becoming cyclonic 6 to gale 8, increasing severe gale 9 or storm 10 later in far northwest.
Sea state
Moderate, becoming rough or very rough, occasionally high later in far northwest.
Weather
Rain and fog patches developing, with sleet or snow in far northwest.
Visibility
Mainly good, becoming moderate to very poor.

In south

Wind
Cyclonic 5 to 7, occasionally gale 8 at first.
Sea state
Rough or very rough.
Weather
Rain and fog patches, becoming mainly fair, then rain later in southwest.
Visibility
Moderate to very poor, becoming good, then moderate or poor later in southwest.

East Central Section

Wind
Southerly or southeasterly 6 to gale 8, becoming cyclonic 4 to 6 later.
Sea state
Rough or very rough, occasionally high for a time in southwest.
Weather
Rain or thundery showers, fog patches.
Visibility
Moderate or good, occasionally very poor.

West Central Section

Wind
Cyclonic, becoming southerly or southwesterly later, 5 to 7, decreasing 4 at times, occasionally gale 8 later.
Sea state
Rough or very rough, occasionally high in south and west.
Weather
Rain or showers, fog banks until later.
Visibility
Moderate or good, occasionally very poor until later.

Denmark Strait

High seas storm warning
Issued:

At 281200UTC, low 53 north 40 west 983 expected 62 north 36 west 982 by 291200UTC. Northeasterly winds will reach storm force 10 in the far southwest of Denmark Strait after 2910000UTC and in the far northwest of West Northern Section after 291200UTC.

Wind
Cyclonic 4 to 6, becoming easterly or northeasterly 7 to severe gale 9 in south, occasionally storm 10 later in far southwest.
Sea state
Moderate or rough, becoming rough or very rough later in south, and occasionally high later in far southwest.
Weather
Fog patches near ice edge, rain developing in south, turning to sleet or snow within 100 miles of greenland coast in south.
Visibility
Moderate or good, occasionally very poor near ice edge, becoming moderate or poor in south, and occasionally very poor within 100 miles of greenland coast in south. Occasional light icing later within 100 miles of greenland coast in south with temperatures of ms02 or ms03.

North Iceland

In area north of 74 north

Wind
Cyclonic 7 to severe gale 9, becoming southerly 4 to 6 later.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Rain or drizzle with fog patches and occasional snow near ice edge, becoming mainly fair later.
Visibility
Moderate to very poor, becoming mainly good later. Light or moderate icing until later within 100 miles of ice edge with temperatures between ms02 and ms06, occasional severe icing at first within 50 miles of ice edge with temperatures of ms07 or ms08.

In area south of 74 north

Wind
Cyclonic, becoming southeasterly later, 4 to 6.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Fog patches.
Visibility
Moderate or good, occasionally very poor.

Norwegian Basin

Wind
Southerly or southeasterly 4 to 6, occasionally 7 in south.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Occasional rain or showers, fog patches in far west.
Visibility
Moderate or good, occasionally very poor in far west.

Outlook for following 24 hours

Storms expected in West Northern Section, West Central Section and Denmark Strait. Gales expected in all other areas except Faeroes and Norwegian Basin.

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

The 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.