Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 201200UTC, low 61 north 17 west 999 expected 59 north 10 west 1003 by 211200UTC. Low 39 north 24 west 988 expected 39 north 18 west 993 by same time. High 75 north 05 west 1038 expected 68 north 30 west 1024 by that time. High 50 north 38 west 1032 declining and losing its identity by 211200UTC. New low expected 45 north 10 west 1004 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Southeast 3 or 4, backing east or northeast 4 to 6.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good, occasionally moderate.

Shannon

Wind
Variable 2 to 4, becoming north or northwest 4 or 5.
Sea state
Moderate or rough.
Weather
Occasional rain or drizzle.
Visibility
Good, occasionally poor.

Rockall

Wind
West or southwest, becoming cyclonic, 4 to 6.
Sea state
Rough, very rough later in northwest.
Weather
Showers.
Visibility
Good, occasionally poor.

Bailey

Wind
Cyclonic, becoming northeasterly later, 4 to 6, increasing 7 or gale 8 in north.
Sea state
Rough or very rough.
Weather
Showers.
Visibility
Good, occasionally poor.

Faeroes

Wind
Southwest, becoming cyclonic 3 to 5, increasing 6 or 7 later.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good,.

Southeast Iceland

Wind
Cyclonic 3 to 5 until later in southeast, otherwise northeasterly 6 to gale 8.
Sea state
Rough or very rough.
Weather
Rain or showers, wintry at times in northwest.
Visibility
Moderate or poor, becoming good.

East Northern Section

In north

Wind
Cyclonic 5 or 6, but 7 or gale 8 for a time in northeast, decreasing 3 or 4 later.
Sea state
Rough or very rough, becoming moderate or rough in north.
Weather
Squally showers, mainly at first in east.
Visibility
Moderate or good.

In south

Wind
Northwesterly 4 to 6, becoming cyclonic 3 to 5 later.
Sea state
Rough occasionally very rough.
Weather
Occasional rain at first in east, otherwise showers, squally at times.
Visibility
Good, occasionally poor at first in east.

West Northern Section

In north

Wind
Cyclonic 3 to 5, occasionally 6 at first in northeast, becoming southeasterly 6 to gale 8 later.
Sea state
Rough or very rough, becoming moderate in northeast, occasionally high later in far west.
Weather
Occasional snow at first in northwest, otherwise mainly fair, rain later in west.
Visibility
Moderate or good, occasionally very poor at first in northwest, becoming moderate or poor for a time later. Occasional light or moderate icing expected from 210900utc in far northwest.

In south

Wind
Southeasterly 6 to gale 8, occasionally severe gale 9, but northwesterly 4 or 5 at first in east, backing westerly 6 or 7 later in far west.
Sea state
Rough or very rough, occasionally high later in west.
Weather
Mainly fair, rain for a time later, then wintry showers in west.
Visibility
Good, becoming moderate or poor for a time.

East Central Section

In north

Wind
Northerly or northwesterly 4 to 6.
Sea state
Rough, occasionally very rough in northwest and moderate in east until later.
Weather
Showers.
Visibility
Good, occasionally moderate.

In south

Wind
Northeasterly 6 to gale 8, backing northerly or northeasterly 4 to 6 later.
Sea state
Rough, occasionally very rough in south.
Weather
Occasional rain at first in far southeast, otherwise mainly fair.
Visibility
Moderate or good.

West Central Section

In east

Wind
Northerly or northeasterly 4 to 6, becoming variable 3 or 4 for a time, then becoming southerly 6 to gale 8 later.
Sea state
Rough or very rough.
Weather
Mainly fair, then occasional rain for a time, wintry showers later in far west.
Visibility
Good, becoming moderate or poor for a time, occasionally moderate later in west.

In west

Wind
Southerly or southeasterly 4 to 6, but variable 3 or 4 at first in east, veering southerly 6 to gale 8, then veering westerly 5 to 7 later.
Sea state
Rough or very rough.
Weather
Mainly fair, then occasional rain for a time.
Visibility
Good, becoming moderate or poor for a time.

Denmark Strait

Wind
Northeasterly 4 to 6, occasionally 7 at first, becoming variable 3 or 4, then cyclonic 5 to 7 later, occasionally gale 8 later west of 36 west.
Sea state
Rough or very rough, becoming mainly moderate.
Weather
Wintry showers at first in northwest, otherwise mainly fair, sleet and snow later in far west.
Visibility
Moderate or good, occasionally very poor later in far west. Occasional icing expected close to ice edge until 210000utc with temperatures between ms02 and ms05, further light to moderate icing developing from 211800utc in far southwest and northeast with temperatures of ms05 to ms09.

North Iceland

In north

Wind
Cyclonic 4 or 5, becoming southwesterly 6 or 7 later.
Sea state
Moderate, occasionally slight in north.
Weather
Snow showers, fair later.
Visibility
Good, occasionally poor until later. Occasional light to moderate icing expected from 211200utc within 70 miles of ice edge with temperatures between ms02 and ms08.

In south

Wind
Cyclonic 3 to 5 until later in far southeast, otherwise easterly or northeasterly 6 to gale 8, becoming cyclonic 3 to 5 later in north and west.
Sea state
Rough or very rough, becoming moderate or rough later in north.
Weather
Occasional rain and fog patches in far southeast, otherwise occasional snow or snow showers, becoming mainly fair later except in far southeast.
Visibility
Moderate or good, occasionally very poor until later.

Norwegian Basin

Wind
Cyclonic 3 to 5, occasionally 6 later in far northwest.
Sea state
Mainly rough, occasionally very rough at first in far northwest, becoming moderate or rough later.
Weather
Occasional rain or showers, fog patches in west.
Visibility
Moderate or good, occasionally poor in east and very poor in west.

Outlook for following 24 hours

Risk of storms in Denmark Strait. Severe gales expected in East Northern Section, West Northern Section, East Central Section and West Central Section. Gales expected in Bailey, Faeroes, Southeast Iceland and north Iceland.

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

The high seas forecast information

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.

Marine forecasts disclaimer

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.