Use my current location crosshair

High Seas forecast

High seas forecasts for the next 24 hours

Issued: 0800 on Wed 27 Aug 2014 UTC

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

General synopsis

At 270000UTC, low 55 north 64 west 995 expected 57 north 47 west 983 by 280000UTC. Low 42 north 43 west 1016 expected 40 north 36 west 1009 by same time. Low 74 north 15 west 1002 expected 78 north 12 west 995 by that time. at 270000UTC, low 47 north 17 west 998 expected near 56 north 15 west by 280000UTC, but losing its identity. New low expected 54 north 19 west 987 by same time. High Fair Isle 1018 expected 64 north 04 east 1018 by that time. Low 56 north 33 west 993 moving steadily southeast, losing its identity

Sole

Southeast becoming cyclonic then southwest, 5 to 7, occasionally gale 8 at first. Moderate or rough, becoming rough or very rough in west. Rain then showers. Moderate or good, occasionally poor at first.

Shannon

Southeast 5 increasing 6 to gale 8, then veering southwest. Moderate becoming rough or very rough. Rain or showers. Good, occasionally poor.

Rockall

Southeast 5 increasing 6 to gale 8, perhaps severe gale 9 later, then veering southwest. Moderate becoming rough or very rough. Rain or showers. Good, occasionally poor.

Bailey

East or southeast 4 or 5 increasing 6 to gale 8. Moderate becoming rough or very rough. Rain later. Good, occasionally poor.

Faeroes

Variable 4 becoming southeast 5 or 6, occasionally 7 later. Slight or moderate becoming moderate or rough. Fair. Good.

Southeast Iceland

Southerly backing easterly 4 or 5, increasing 6 at times. Moderate. Fair. Good.

East Northern Section

In east

Southeasterly backing easterly, but becoming cyclonic in south, 4 or 5 increasing 5 to 7, occasionally gale 8 later in central areas. Moderate, becoming rough or very rough except in far north. Rain or showers. Moderate or good, occasionally poor in south.

In southwest

Easterly becoming variable 3 or 4, then becoming northwesterly 5 or 6 later in far south. Moderate, becoming moderate or rough. Rain or showers. Moderate or good, occasionally poor.

In northwest

Southeasterly 4 or 5, occasionally 6 in far north. Moderate. Rain or showers. Moderate or good, occasionally poor.

West Northern Section

In northeast

Easterly or northeasterly veering easterly or southeasterly, 4 or 5. Moderate. Rain or drizzle at times, fog patches. Moderate or poor, occasionally very poor.

In southeast

Variable 3 or 4 becoming northwesterly 4 or 5, occasionally 6 in far southeast, then backing westerly later. Moderate or rough. Rain or showers. Moderate or good, occasionally poor.

In northwest

Northerly or northeasterly 5 or 6, increasing 7 or gale 8 later in far northwest. Slight or moderate becoming moderate or rough. Mainly fair then rain. Moderate or good becoming moderate or poor.

In southwest

Northwesterly 5 or 6 becoming variable 3 or 4, then becoming cyclonic 5 to 7 later. Moderate or rough. Fair then rain. Good, becoming moderate or poor.

East Central Section

In north

Cyclonic mainly westerly 5 to 7, occasionally gale 8 in south, decreasing 4 at times in north. Moderate becoming rough or very rough, then very rough or high later except in far north. Rain or squally showers. Moderate or good, occasionally poor.

In south

Westerly 5 to 7, occasionally gale 8 in north. Moderate or rough becoming rough or very rough, then very rough or high later in north. Showers, but mainly fair in southwest. Moderate or good, occasionally poor later in north.

West Central Section

In south

Northwesterly backing westerly or southwesterly, 4 or 5, occasionally 6 except in far south. Rough or very rough, becoming moderate later in southwest. Mainly fair. Moderate or good.

In north

Northwesterly 5 to 7, occasionally gale 8 at first in east, then backing southwesterly later. Rough or very rough. Squally showers at first in east, then rain later. Moderate or good, occasionally poor later.

Denmark Strait

In area south of 70 north

Cyclonic, but mainly northeasterly near greenland, 4 or 5, increasing 6 or 7 later near greenland, perhaps gale 8 later in far west. Slight or moderate, becoming rough later in far west. Rain, fog banks. Moderate or poor, occasionally very poor.

In area north of 70 north

Southerly or southwesterly 3 or 4, veering westerly 4 or 5 later in far north. Slight or moderate. Fair. Moderate or good.

North Iceland

In area south of 67 north and east of 15 west

Southerly or southwesterly, backing southeasterly in far southeast, 4 or 5. Slight or moderate. Fair. Good, occasionally moderate.

In rest of area

Variable 3 or 4, but mainly southwesterly 4 or 5 in far north. Slight or moderate. Fair in far northwest, otherwise drizzle at times with fog banks. Good in far northwest, otherwise moderate or poor, occasionally very poor.

Norwegian Basin

Northerly veering northeasterly 4 or 5 in far south, otherwise variable 3 or 4. Slight or moderate. Occasional drizzle in north, otherwise mainly fair. Good, occasionally moderate in north.

Outlook for following 24 hours

From Thu 28 Aug 2014

Storms expected in the west of West Northern Section. Severe gales expected in Shannon, East Central Section and the west of Denmark Strait. Gales expected in Rockall, Bailey and East Northern Section. Risk of gales in west Sole, south Faeroes and the northwest of 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.