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High Seas forecast

High seas forecasts for the next 24 hours

Issued: 0800 on Mon 25 May 2015 UTC

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

General synopsis

At 250000UTC, low 61 north 42 west 997 expected 68 north 20 west 1000 by 260000UTC. High 42 north 32 west 1036 expected 46 north 29 west 1038 by same time. High 72 north 26 west 1018 expected 65 north 44 west 1015 by that time. Low 66 north 07 west 1000 losing its identity

Sole

Northerly or northwesterly 4 or 5, increasing 6 at times. Moderate, occasionally rough. Occasional drizzle. Good, occasionally poor.

Shannon

Northwesterly 4 or 5, increasing 6 at times. Moderate or rough. Occasional rain or drizzle. Moderate or good, occasionally poor.

Rockall

Northwesterly 4 or 5, increasing 6 at times. Moderate or rough. Occasional rain or drizzle. Moderate or good, occasionally poor.

Bailey

Northwest backing west 5 or 6, occasionally 7 later, perhaps gale 8 later. Moderate or rough. Occasional rain or showers. Good, occasionally moderate.

Faeroes

West or northwest 5 or 6, occasionally 7 later. Moderate or rough. Occasional rain or showers. Good, occasionally moderate.

Southeast Iceland

Variable 4 at first in north, otherwise northwesterly backing southwesterly 5 to 7, perhaps gale 8 later. Moderate or rough, occasionally very rough later. Showers. Good, occasionally moderate.

East Northern Section

In far northwest

Southerly or southeasterly 4 or 5, veering southwesterly 5 to 7, then veering westerly or northwesterly 4 or 5 later. Moderate, becoming rough or very rough. Occasional rain. Moderate or good, occasionally poor.

In rest of area

Westerly or southwesterly 5 to 7, occasionally gale 8 except in far south. Rough or very rough, occasionally high later in north. Occasional rain or drizzle, becoming mainly fair later in south. Moderate or good, occasionally poor.

West Northern Section

In north

Cyclonic 6 to gale 8, occasionally severe gale 9 in south, becoming westerly or northwesterly 5 or 6 later, then becoming variable 3 or 4 later in west. Moderate or rough, becoming very rough or high for a time. Occasional rain or showers, but snow at first in far northwest, becoming mainly fair later in west. Moderate or poor, occasionally very poor at first in far northwest, becoming good later in west.

In south

Westerly or southwesterly 5 to 7, occasionally gale 8 until later in north. Rough or very rough. Occasional rain or drizzle. Moderate or good, occasionally poor.

East Central Section

In north

Westerly or northwesterly, backing southwesterly later in west, 4 or 5, increasing 6 at times. Moderate, occasionally rough. Occasional rain or drizzle with fog patches in west, becoming mainly fair later. Moderate or good, occasionally very poor until later.

In south

Northerly or northwesterly 4 or 5, becoming variable 3 or 4 in west. Moderate, occasionally slight in west. Occasional rain or drizzle with fog patches in west. Moderate or poor, occasionally very poor in west.

West Central Section

Westerly or southwesterly 4 or 5, increasing 6 at times, becoming variable 3 or 4 at times in southeast. Moderate, occasionally rough in north. Mainly fair in northwest and far north, otherwise occasional rain or drizzle with fog patches. Moderate or poor, occasionally very poor, but mainly good in northwest and far north.

Denmark Strait

In far southwest

Easterly or northeasterly 5 to 7, increasing gale 8 or severe gale 9 at times, becoming variable 3 or 4 later. Rough, occasionally very rough, becoming moderate later. Occasional rain or snow, becoming fair later. Poor or very poor, becoming good later.

In area north of 70 north

Variable 3 or 4, becoming northerly 4 or 5, occasionally 6 later in south. Slight or moderate. Fair then snow. Good, becoming moderate or poor, occasionally very poor.

In rest of area

Easterly or northeasterly, becoming cyclonic later near Iceland, 5 to 7, occasionally gale 8 later. Moderate or rough. Occasional rain or snow. Moderate or poor, occasionally very poor. Occasional icing developing later in northeast, with temperatures ms02.

North Iceland

In north

Northerly or northeasterly 4 or 5, becoming variable 3 or 4 at times. Slight or moderate. Occasional rain or snow. Moderate or good, occasionally very poor.

In south

Cyclonic 5 or 6, occasionally 7 later in far west. Moderate, occasionally rough. Fog patches with occasional rain or drizzle, but snow in far west. Moderate or poor, occasionally very poor, but mainly good in far southeast.

Norwegian Basin

Westerly or northwesterly, backing southwesterly later, 4 or 5, occasionally 3, but increasing 6 at times later in far west. Moderate or rough. Occasional rain or showers. Good, occasionally moderate.

Outlook for following 24 hours

From Tue 26 May 2015

Severe gales expected in Denmark Strait, with gales in sea area Bailey, sea area Southeast Iceland, East Northern Section, the far north of West Northern Section and the far west of north Iceland.

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.