Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 240000UTC, low 55 north 36 west 993 expected 57 north 32 west 991 by 250000UTC. High 66 north 03 west 1029 expected 65 north 02 east 1029 by same time. Low 47 north 57 west 1015 expected 47 north 43 west 1011 by that time.

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Westerly or southwesterly, backing southerly later in east, 3 to 5, occasionally 6 at first.
Sea state
Moderate or rough.
Weather
Occasional rain.
Visibility
Good, occasionally poor.

Shannon

Wind
Cyclonic, mainly south or southeast, 4 to 6,.
Sea state
Moderate or rough, becoming mainly rough.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Rockall

Wind
Cyclonic, mainly south or southeast, 4 to 6, occasionally 7.
Sea state
Moderate or rough, becoming mainly rough.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Bailey

Wind
Cyclonic, mainly south or southeast, 4 to 6, occasionally 7.
Sea state
Moderate or rough, becoming mainly rough.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Faeroes

Wind
Easterly or southeasterly 4 to 6, occasionally 7 later.
Sea state
Slight or moderate, becoming moderate or rough.
Weather
Showers.
Visibility
Moderate or good.

Southeast Iceland

Wind
Easterly or southeasterly 4 to 6, occasionally 7 later.
Sea state
Slight or moderate, becoming moderate or rough.
Weather
Showers.
Visibility
Moderate or good.

East Northern Section

In north

Wind
Easterly or southeasterly 6 to gale 8, decreasing 4 to 6 in southwest.
Sea state
Rough or very rough.
Weather
Occasional rain or showers.
Visibility
Moderate or good, occasionally poor.

In south

Wind
Cyclonic mainly southerly or southeasterly, 5 to 7.
Sea state
Occasionally gale 8 at first in north, occasionally 4 later in east.
Weather
Rough occasionally very rough.
Visibility
Squally showers. Moderate or good, occasionally poor.

West Northern Section

In north

Wind
Cyclonic, mainly easterly or northeasterly 6 to gale 8, occasionally severe gale 9 in far northwest, decreasing 4 or 5 later except in far north and northwest.
Sea state
Rough or very rough.
Weather
Snow in far northwest, otherwise rain or drizzle, fog patches.
Visibility
Moderate or good, occasionally poor or very poor. Light icing in far northwest.

In south

Wind
Cyclonic 3 to 5, occasionally 6 in west, becoming northwesterly 7 to severe gale 9 for a time in far west and southwest.
Sea state
Rough or very rough.
Weather
Occasional rain or showers, fog patches in west.
Visibility
Moderate or good, occasionally poor, but very poor at times in west.

East Central Section

Wind
Cyclonic, mainly southerly or southwesterly, veering mainly westerly later, 5 to 7, occasionally gale 8 in west.
Sea state
Rough or very rough.
Weather
Showers, perhaps thundery, rain at times in northwest.
Visibility
Good, occasionally poor.

West Central Section

In north

Wind
Cyclonic 3 to 5 at first, otherwise mainly westerly 6 to gale 8, perhaps severe gale 9 later.
Sea state
Rough or very rough.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

In south

Wind
Cyclonic, mainly westerly until later, 6 to gale 8, decreasing 4 to 6 later, occasionally 7 later.
Sea state
Very rough or high, becoming rough or very rough.
Weather
Showers, then rain, perhaps thundery later in southwest.

Denmark Strait

In far southwest

Wind
Northeasterly 6 to gale 8, occasionally severe gale 9 later.
Sea state
Rough or very rough.
Weather
Occasional rain, snow and perhaps freezing rain.
Visibility
Moderate, occasionally very poor. Occasional light icing expected with temperatures of around ms03 to ms05.

In rest of area

Wind
Variable 2 to 4 at first in north, otherwise easterly or northeasterly 4 to 6, increasing 6 to gale 8 later.
Sea state
Slight or moderate, becoming moderate or rough.
Weather
Mainly fair, rain or sleet later in south.
Visibility
Good, occasionally poor later in south. Occasional light icing later near ice edge with temperatures around ms03.

North Iceland

Wind
Variable 2 to 4, but becoming in south, cyclonic 3 to 5, occasionally 6 later.
Sea state
Slight, occasionally smooth in north, occasionally moderate in south.
Weather
Mainly fair, drizzle and fog patches later in south.
Visibility
Moderate or good, occasionally very poor later in south.

Norwegian Basin

Wind
Variable 2 to 4, but northerly or northeasterly 5 or 6 in southeast.
Sea state
Occasionally 7 until later near south norway coast.
Weather
Slight or moderate in west, mainly moderate in east.
Visibility
Wintry showers, mainly in east. Moderate or good, occasionally poor in east.

Outlook for following 24 hours

Severe gales expected in West Northern Section and Denmark Strait. Gales expected in East Northern Section, East Central Section and West Central Section.

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.