Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 290000UTC, low 63 north 26 west 993 expected 68 north 03 west with little change by 300000UTC. Low 42 north 18 west 997 expected 35 north 18 west 995 by same time. New low expected 54 north 48 west 986 by that time. at 290000UTC, low 75 north 01 west 990 losing its identity by 300000UTC. High eastern Greenland 1008 expected southern Greenland 1023 by same time. High 44 north 34 west 1034 expected 48 north 24 west 1031 by that time. at 290000UTC, high Norway 1033 dissipating by 300000UTC.

Issued at: 08:00 (UTC) on Sun 29 Nov 2020.

For the period 08:00 (UTC) on Sun 29 Nov 2020 to 08:00 (UTC) on Mon 30 Nov 2020.

High seas forecast and storm warnings map

High seas forecast and storm warnings explained

Sole

Wind: East or northeast 4 to 6, becoming variable 4 or less.
Sea state: Moderate or rough becoming moderate.
Weather: Fair.
Visibility: Good.

Shannon

Wind: Northeasterly 3 to 5, becoming variable 4 or less, then westerly 4 or 5 in north.
Sea state: Rough becoming moderate, occasionally rough later in north.
Weather: Mainly fair.
Visibility: Moderate or good.

Rockall

Wind: Variable 4 or less at first in southeast, otherwise southwesterly 5 to 7.
Sea state: Moderate or rough, occasionally very rough in north, becoming rough later.
Weather: Rain.
Visibility: Good, occasionally moderate.

Bailey

Wind: Southwest 7 to severe gale 9, veering northwest 5 to 7.
Sea state: Rough or very rough, becoming very rough, occasionally high in northwest, then rough later.
Weather: Squally showers.
Visibility: Good, occasionally moderate.

Faeroes

Wind: Southwesterly 6 to gale 8, veering northwesterly 5 to 7.
Sea state: Rough or very rough, occasionally moderate.
Weather: Squally showers.
Visibility: Good, occasionally moderate.

Southeast Iceland

Wind: Southwesterly 6 to gale 8, occasionally severe gale 9, veering northwesterly 5 to 7.
Sea state: Rough or very rough, occasionally high.
Weather: Squally showers.
Visibility: Good, occasionally moderate.

East Northern Section

Wind: Cyclonic, mainly southwesterly, 5 to 7, occasionally gale 8 at first, becoming variable 4 or less later in northwest.
Sea state: Rough or very rough, occasionally high at first in northeast, becoming moderate or rough later.
Weather: Rain in south, showers in north, perhaps wintry.
Visibility: Moderate or good, occasionally poor.

West Northern Section

Wind: Cyclonic, mainly westerly, 4 to 6, occasionally 7 at first, becoming variable 4 or less in north, then increasing 7 to severe gale 9 later except in northeast.
Sea state: Moderate or rough, occasionally very rough at first in east and later in southwest.
Weather: Wintry showers at first in north, otherwise rain.
Visibility: Moderate or good, occasionally poor.

East Central Section

Wind: Southwesterly in north, otherwise northeasterly 5 to 7, occasionally gale 8 at first in south, becoming variable 4 or less in central areas.
Sea state: Rough or very rough becoming moderate or rough.
Weather: Showers, occasional rain in far north.
Visibility: Good, occasionally moderate in far north.

West Central Section

Wind: Northerly 3 to 5 becoming variable 4 or less in southeast, otherwise southerly or southwesterly 5 to 7, increasing 7 to severe gale 9 later.
Sea state: Moderate or rough, occasionally very rough in northwest, becoming very rough later in west.
Weather: Fair, but rain in northwest.
Visibility: Good, but moderate or poor in northwest.

Denmark Strait

Wind: Cyclonic, mainly northeasterly, 4 to 6, occasionally 7 at first in northeast, becoming variable 4 or less later.
Sea state: Moderate, occasionally rough in southeast and slight in northwest.
Weather: Occasional sleet or snow in east, becoming fair later.
Visibility: Moderate or good, occasionally very poor in east. Occasional light icing developing for a time in northeast near ice edge, with temperatures ms02 to ms04.

North Iceland

Wind: Cyclonic 5 to 7, occasionally gale 8 in southeast, becoming variable 4 or less, in northwest.
Sea state: Moderate or rough, occasionally very rough at first in east, becoming very rough in southeast and slight later in northwest.
Weather: Fair in northwest, otherwise rain in south and snow in north, becoming fair later.
Visibility: Moderate or good, occasionally very poor until later in north. Light or moderate icing in northwest with temperatures ms02 to ms08.

Norwegian Basin

Wind: Southerly or southwesterly 5 to 7, occasionally gale 8 until later, veering westerly later.
Sea state: Rough, occasionally moderate at first, becoming rough or very rough.
Weather: Occasional rain or showers.
Visibility: Moderate or good, occasionally poor.

Outlook for following 24 hours

Storms expected in East Northern Section, West Northern Section and Denmark Strait. Severe gales expected in West Central Section and north Iceland. Gales expected in Southeast Iceland, East Central Section and Norwegian Basin.

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

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.

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.