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High Seas forecast

High seas forecasts for the next 24 hours

Issued: 2000 on Wed 23 Apr 2014 UTC

The high seas forecast, issued by the Met Office, on behalf of the Maritime and Coastguard Agency

General synopsis

At 231200UTC, low 55 north 38 west 986 expected 51 north 30 west 997 by 241200UTC. Low 57 north 20 west 999 expected 60 north 34 west 1004 by same time. Low 42 north 57 west 994 expected 45 north 48 west with little change by that time. at 231200UTC, high 70 north 29 west 1024 slow moving, dissipating by 241200UTC. High 68 north 15 east 1036 expected 60 north 21 east 1035 by same time. New low moving slowly northeastwards expected 48 north 12 west 1011 by that time

Sole

Southwesterly, becoming cyclonic, 5 or 6. Rough, occasionally very rough at first. Rain or showers. Moderate or good.

Shannon

Southwest, becoming cyclonic, 5 or 6. Rough, occasionally moderate later in north. Showers, rain later. Moderate or good.

Rockall

South or southeast 4 or 5, occasionally 6 at first. Rough becoming moderate. Occasional rain or showers. Moderate or good.

Bailey

South or southeast 4 or 5, occasionally 6 at first. Rough becoming moderate. Occasional rain or showers. Moderate or good.

Faeroes

Southeast 5 or 6. Moderate or rough. Occasional rain, fog patches. Moderate or good, occasionally very poor.

Southeast Iceland

Easterly or northeasterly 6 to gale 8, decreasing 4 or 5. Rough, occasionally very rough at first, becoming moderate. Rain at times. Moderate or good, occasionally poor.

East Northern Section

In north

Easterly 6 to gale 8, veering southerly or southeasterly 5 or 6, then becoming variable 3 or 4 later. Very rough becoming rough. Occasional rain or showers. Good, occasionally moderate.

In south

Cyclonic 5 or 6, becoming variable 3 or 4. Moderate or rough. Showers, rain at first. Good, occasionally moderate at first.

West Northern Section

In north

Northeasterly, becoming cyclonic later, 5 or 6. Very rough, becoming rough, occasionally moderate later. Occasional rain and drizzle, mainly fair later in far east. Moderate or good, occasionally poor.

In south

Variable 3 or 4. Rough, occasionally moderate later. Fair then occasional rain and drizzle in west. Moderate or good occasionally poor in west.

East Central Section

In north

Southwesterly 3 or 4, backing southerly 4 or 5, then becoming cyclonic 5 or 6 later in west. Rough, occasionally very rough in west. Showers, occasional rain later. Good, occasionally moderate later.

In south

Westerly 5 or 6, but 4 at first in east, increasing 7 later in far south. Rough or very rough. Showers, occasional rain later. Good, occasionally moderate later.

West Central Section

In southeast

Westerly 5 to 7, occasionally gale 8 later. Very rough, occasionally rough later. Showers then fair, rain later. Good, becoming moderate or poor later.

In southwest

Westerly 5 or 6, decreasing 3 or 4, then becoming cyclonic 5 to 7 later. Rough or very rough. Showers then rain. Good, becoming moderate or poor.

In north

Cyclonic 6 to gale 8, occasionally severe gale 9 at first in west, becoming northerly 4 or 5, then decreasing 3 later in west. Very rough or high, becoming rough later. Occasional rain, then showers, fair later. Moderate, occasionally poor, becoming good.

Denmark Strait

Easterly or northeasterly 4 or 5, occasionally 6 at first in far east. Slight or moderate, occasionally rough at first in south. Mainly fair, rain or drizzle later in far southwest, fog patches later in east. Moderate or good, occasionally poor, then becoming very poor later in east.

North Iceland

In north

Southerly, becoming variable later, 3 or 4, occasionally 5 at first in east. Slight or moderate, occasionally rough at first in east. Fog patches later. Good, becoming moderate, occasionally very poor later.

In south

Easterly or southeasterly 4 or 5, occasionally 6 at first in far west, becoming variable 3 or 4 later in west. Moderate or rough. Fog banks developing. Good, becoming moderate or poor, occasionally very poor.

Norwegian Basin

Easterly or southeasterly 4 or 5, occasionally 6 in west, becoming variable 3 or 4 in east. Moderate, occasionally rough in west, becoming slight later in far east. Mainly fair. Good, occasionally poor in west.

Outlook for following 24 hours

From Thu 24 Apr 2014

Gales or severe gales expected in Sole, Shannon, East Central 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 overview

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 containg 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.