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High seas forecast

Issued at 2000 UTC on Monday 18 June 2018
by the Met Office, Exeter, United Kingdom
for the period 2000 UTC Monday 18 June until 2000 UTC Tuesday 19 June 2018

General synopsis

At 181200UTC, 64 north 09 west 977 expected 65 north 00 west 982 by 191200UTC. Low 44 north 37 west 1011 expected 52 north 17 west 1010 by same time. High 47 north 48 west 1023 expected 44 north 38 west 1025 by that time. at 181200UTC high 42 north 18 west 1031 expected 47 north 06 west 1027 by 191200UTC.

Area forecasts for the next 24 hours

Sole

Southwest 4 or 5, occasionally 6 at first. Moderate or rough. Drizzle, fog patches. Moderate, occasionally very poor.

Shannon

Cyclonic 3 or 4, increasing 5 or 6, becoming southwest later. Rough. Drizzle, fog patches. Moderate, occasionally very poor.

Rockall

Westerly 5 to 7, occasionally gale 8 in north, becoming cyclonic 3 or 4, increasing 5 or 6 later in south. Rough or very rough. Drizzle, rain later. Good, becoming moderate, occasionally poor in south.

Bailey

West 6 to gale 8, occasionally severe gale 9 , decreasing 5 at times later. Very rough or high. Showers. Good.

Faeroes

West 6 to gale 8, occasionally severe gale 9 , decreasing 5 at times later. Very rough or high. Showers. Good.

Southeast Iceland

Cyclonic, mainly westerly, 5 to 7, occasionally gale 8 at first in south. Rough or very rough. Showers. Good.

East Northern Section

Westerly 5 to 7, occasionally gale 8 at first in northeast. Rough or very rough, occasionally moderate later. Showers. Moderate or good, occasionally poor.

West Northern Section

Westerly 5 or 6, occasionally 7 in south, but cyclonic 3 or 4 in north. Moderate or rough. Showers. Good occasionally poor.

East Central Section

Cyclonic 5 to 7, occasionally gale 8 for a time. Moderate or rough. Occasional rain, fog patches, but mainly fair in northwest. Moderate, occasionally very poor, but mostly good in northwest.

West Central Section

Cyclonic 5 to 7, occasionally gale 8 in southeast, but variable 3 or 4 for a time. Moderate or rough. Occasional rain in southeast for a time. Moderate or good, occasionally poor in southeast for a time.

Denmark Strait

Northerly 4 or 5, occasionally 6 at first in east, otherwise variable 3 or 4. Slight or moderate. Drizzle, fog patches. Moderate or poor, occasionally very poor.

North Iceland

Cyclonic at first in southeast, but mainly northerly 5 to 7, occasionally gale 8 for a time in south, decreasing 4 at times later in north. Moderate or rough, but very rough in far south. Occasional rain, fog patches in north. Moderate, occasionally very poor in north.

Norwegian Basin

Southwesterly veering westerly 6 to gale 8, occasionally severe gale 9 in south. Very rough or high. Rain or showers. Moderate or poor.

Outlook for following 24 hours

Severe gales expected in Norwegian Basin. Gales expected in West Central Section and West Northern Section.

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

High seas forecast and storm warnings

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.

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