Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 240000UTC, low 56 north 37 west 992 expected 59 north 28 west 1002 by 250000UTC. High 53 north 05 west 1031 dissipating by same time. New high expected 53 north 09 east 1033 by that time. at 240000UTC, low 39 north 07 west 1018 expected 42 north 09 west 1019 by 250000UTC.

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Variable becoming mainly northeast later, 2 to 4.
Sea state
Moderate.
Weather
Fog patches.
Visibility
Good, occasionally very poor.

Shannon

Wind
South or southwest 4 or 5, becoming variable 2 to 4 later.
Sea state
Moderate or rough.
Weather
Drizzle, fog patches later.
Visibility
Moderate or good, occasionally very poor later.

Rockall

Wind
Southerly or southwesterly 3 to 5, occasionally 6 later.
Sea state
Moderate or rough.
Weather
Rain or drizzle, fog patches.
Visibility
Moderate or good, occasionally very poor.

Bailey

Wind
South or southwest, 4 to 6, occasionally 7 later in west.
Sea state
Rough.
Weather
Showers.
Visibility
Moderate or good.

Faeroes

Wind
Southwest 4 to 6.
Sea state
Moderate or rough.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

Southeast Iceland

Wind
Southerly or southwesterly, 4 to 6, occasionally 7 at first.
Sea state
Mainly rough.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

East Northern Section

In north

Wind
Southerly or southwesterly becoming cyclonic, 4 to 6, occasionally 7 in south and decreasing 3 at times in north.
Sea state
Rough, occasionally very rough in south and moderate later in north.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

In south

Wind
Cyclonic, mainly southerly or southwesterly, 5 to 7, occasionally gale 8 in southwest.
Sea state
Rough or very rough.
Weather
Occasional rain or showers.
Visibility
Good, occasionally poor.

West Northern Section

In north

Wind
Northeasterly 5 to 7 at first in north and west, otherwise cyclonic 4 to 6, occasionally 3 later.
Sea state
Moderate at times in northwest, otherwise rough, occasionally very rough at first in south.
Weather
Occasionally rain or showers.
Visibility
Moderate or good, occasionally poor.

In south

Wind
Southerly or southwesterly 6 to gale 8 at first in far southeast, otherwise cyclonic becoming westerly or southwesterly later, 4 to 6.
Sea state
Rough or very rough, becoming rough later.
Weather
Occasional rain or showers.
Visibility
Good, occasionally poor.

East Central Section

In southeastern half of area

Wind
Southerly or southwesterly 3 to 5, becoming variable 2 to 4 later.
Sea state
Moderate or rough.
Weather
Occasional rain or drizzle with fog patches.
Visibility
Moderate or good, occasionally very poor.

In northwestern half of area

Wind
Southerly or southwesterly 5 to 7, occasionally gale 8 at first in far northwest, decreasing 3 to 5 later.
Sea state
Rough or very rough.
Weather
Showers.
Visibility
Moderate or good.

West Central Section

Wind
Cyclonic, mainly westerly or southwesterly, 4 to 6, but 6 to gale 8 at first in northeast, veering westerly or northwesterly 3 to 5 later in north, and variable 3 or less later in south.
Sea state
Rough or very rough, becoming rough, occasionally moderate in southeast.
Weather
Occasional rain or showers, mainly fair later in north.
Visibility
Moderate or good, occasionally poor.

Denmark Strait

Wind
Cyclonic mainly northeasterly 4 to 6, occasionally 7 at first in south and 3 later, but variable 2 to 4 later in southeast.
Sea state
Moderate, occasionally rough in south and slight in east.
Weather
Occasional rain or drizzle with fog patches, but snow or freezing rain at times near greenland coast, showers later in southeast.
Visibility
Moderate or good, occasionally very poor.

North Iceland

In north

Wind
Variable 2 to 4 at first in far north, otherwise easterly or northeasterly 3 to 5.
Sea state
Slight, occasionally moderate in south.
Weather
Occasional drizzle or snow, fog patches later in south.
Visibility
Moderate or good, occasionally very poor later.

In south

Wind
Cyclonic 4 to 6, occasionally 7 at first in south and decreasing 3 at times later.
Sea state
Slight or moderate, becoming rough in southeast.
Weather
Rain at times with fog patches, mainly fair for a time in southeast.
Visibility
Moderate to very poor, becoming mainly good in southeast and occasionally good later elsewhere.

Norwegian Basin

Wind
Southwesterly 4 to 6, occasionally 7 for a time in east.
Sea state
Moderate, occasionally rough in north and west.
Weather
Occasional rain or drizzle at first and later.
Visibility
Moderate or good, occasionally poor at first and later.

Outlook for the following 24 hours

A risk of gales in Bailey, Faeroes, Southeast Iceland and east nothern section.

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

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.