Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 201200UTC, low 55 north 13 west 987 expected 55 north 15 west 998 by 211200UTC. Low 60 north 25 west 980 losing its identity by same time. New low expected 46 north 04 west 998 by that time. at 201200UTC, new high expected 67 north 03 east 1024 by 211200UTC

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Cyclonic 5 to 7, occasionally gale 8 later in west.
Sea state
Very rough or high.
Weather
Showers, perhaps thundery.
Visibility
Moderate or poor.

Shannon

Wind
Cyclonic 5 to 7, decreasing 4 or 5.
Sea state
Very rough or high.
Weather
Squally showers.
Visibility
Moderate or poor.

Rockall

Wind
Cyclonic becoming southeast later, 6 to gale 8 decreasing 4 to 6.
Sea state
Very rough or high.
Weather
Squally showers.
Visibility
Moderate or poor.

Bailey

Wind
Southeasterly 6 to gale 8, but cyclonic 5 at first in southwest, decreasing 4 or 5 later.
Sea state
Very rough or high until later, otherwise rough or very rough.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Easterly or southeasterly 4 to 6.
Sea state
Rough or very rough.
Weather
Showers.
Visibility
Good.

Southeast Iceland

Wind
Easterly or southeasterly 4 to 6.
Sea state
Rough or very rough.
Weather
Showers.
Visibility
Good.

East Northern Section

In southwest

Wind
Cyclonic mainly northwesterly, 6 to gale 8, decreasing 4 to 6, becoming southerly or southeasterly 6 to gale 8 later.
Sea state
High, becoming rough or very rough.
Weather
Squally, perhaps thundery showers at first, becoming mainly fair, occasional rain later in southwest.
Visibility
Moderate or poor, becoming moderate or good.

In rest of area

Wind
Cyclonic 4 to 6, decreasing 3 at times, becoming southeasterly 5 or 6 later.
Sea state
Very rough or high becoming rough or very rough, then becoming mainly rough later.
Weather
Occasional rain or showers.
Visibility
Moderate or good, occasionally poor.

West Northern Section

In north

Wind
Cyclonic 6 to gale 8, decreasing 4 to 6, becoming southeasterly 6 to gale 8 later, then becoming cyclonic 4 or 5 later in west.
Sea state
Very rough, occasionally rough, becoming mainly rough.
Weather
Occasional rain or showers, sleet or snow at times in far northwest.
Visibility
Moderate or good, occasionally very poor in far northwest and poor elsewhere.

In south

Wind
Northwesterly 6 to gale 8 at first in east, otherwise westerly or southeasterly 4 to 6, backing southerly 5 to 7, then veering westerly 7 to severe gale 9 later.
Sea state
Very rough or high, becoming rough or very rough.
Weather
Mainly fair at first in east, otherwise rain at times, squally, perhaps wintry showers later in west.
Visibility
Moderate or good, occasionally poor.

East Central Section

Wind
Northwesterly, backing southwesterly later in west, 6 to gale 8, decreasing 4 to 6 later.
Sea state
High, becoming very rough or high, occasionally rough later in west.
Weather
Showers, thundery in northeast, and wintry at first in south, occasional rain later in west.
Visibility
Moderate or poor, occasionally good.

West Central Section

Wind
Westerly or southwesterly 6 or 7, but northwesterly 6 to gale 8 at first in east, backing southerly 7 to severe gale 9 later in west.
Sea state
Very rough or high, becoming rough or very rough, then very rough or high later in northwest.
Weather
Occasional rain at first in east, otherwise mainly fair, then squally, thundery rain for a time, wintry showers later in far northwest.
Visibility
Moderate or good, becoming moderate or poor for a time, occasionally poor later in far northwest.

Denmark Strait

In southeast

Wind
Cyclonic 3 to 5, becoming southeasterly 5 or 6 later.
Sea state
Rough or very rough becoming moderate or rough.
Weather
Mainly fair, then occasional rain.
Visibility
Good, occasionally poor.

In rest of area

Wind
Easterly or northeasterly 6 to gale 8, occasionally severe gale force 9 at first in far west, decreasing 4 to 6 except in far west.
Sea state
Rough or very rough, becoming slight or moderate in north.
Weather
Occasional freezing rain, sleet and snow, fog patches in east.
Visibility
Moderate to very poor, occasionally good. Light icing within 100 miles of the greenland coast until 210400utc with temperatures ms02 or ms03.

North Iceland

In north

Wind
Southwesterly 4 or 5, but variable 3 or 4 at first in east, backing southerly or southwesterly 5 or 6, increasing 7 or gale 8 in far north.
Sea state
Moderate, becoming moderate or rough later.
Weather
Mainly fair at first in north and east, otherwise sleet and snow, fog banks developing in southwest.
Visibility
Moderate or good at first in north and east, otherwise moderate or poor, occasionally very poor in southwest. Occasionally light icing developing from 210000utc in northwest with temperatures between ms02 and ms04.

In south

Wind
Southeasterly 4 to 6.
Sea state
Moderate or rough, occasionally very rough in far south.
Weather
Occasional rain, fog banks developing and becoming extensive.
Visibility
Moderate or poor, becoming poor or very poor.

Norwegian Basin

Wind
Southeasterly, backing easterly or southeasterly later, 4 or 5, but variable 2 or 3 until later in east.
Sea state
Moderate or rough, showers in northeast.
Weather
Mainly fair.
Visibility
Good, occasionally moderate in northeast.

Outlook for following 24 hours

Storm force winds expected in West Northern Section. Severe gales expected in West Central Section with gales in East Northern Section, East Central Section and Denmark Strait.

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.