Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 201200UTC, low 46 north 41 west 1017 expected 44 north 22 west 1008 by 211200UTC. New low expected 63 north 41 west 1005 by same time. High 54 north 29 west 1029 expected 53 north 27 west 1031 by that time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
North or northwest 4 or 5, occasionally 6 at first.
Sea state
Slight or moderate, but rough at first.
Weather
Showers.
Visibility
Good.

Shannon

Wind
Northerly or northwesterly 4 or 5, increasing 6 at first in east.
Sea state
Moderate, but rough at first.
Weather
Showers.
Visibility
Good.

Rockall

Wind
Northerly or northwesterly 4 or 5, increasing 6 at first in east.
Sea state
Moderate, but rough at first in south.
Weather
Showers.
Visibility
Good.

Bailey

Wind
North backing west or northwest, 3 to 5.
Sea state
Moderate.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Northerly backing westerly or northwesterly later, 4 or 5, occasionally 6 at first in east.
Sea state
Slight or moderate, occasionally rough in east.
Weather
Showers.
Visibility
Good.

Southeast Iceland

Wind
Northerly at first in east, otherwise westerly or southwesterly 3 to 5, occasionally 6 later in west.
Sea state
Moderate.
Weather
Mainly fair.
Visibility
Good.

East Northern Section

In northwestern half of area

Wind
Westerly or southwesterly, 4 or 5, occasionally 3 at first and increasing 6 at times later.
Sea state
Moderate, occasionally slight at first in far north, becoming rough later in west.
Weather
Rain or drizzle at times.
Visibility
Moderate or good, occasionally poor.

In southeastern half of area

Wind
Northwesterly, backing westerly in northwest, 3 to 5.
Sea state
Moderate.
Weather
Showers.
Visibility
Good.

West Northern Section

Wind
Westerly 3 to 5, backing southwesterly 4 to 6, but becoming cyclonic 3 to 5 in far northwest, then increasing 7 at times later in west.
Sea state
Moderate, becoming moderate or rough.
Weather
In northwest, occasional rain or drizzle with fog patches, in southeast, showers.
Visibility
Good in southeast, but moderate or good in northwest, occasionally very poor in northwest.

East Central Section

In northern half of area

Wind
Variable in west and northerly in east, 2 to 4, occasionally 5 at first in east.
Sea state
Rough at first in southeast, otherwise moderate.
Weather
Showers.
Visibility
Good.

In southern half of area

Wind
Northerly 3 to 5 at first in far east, otherwise easterly backing northeasterly later, 4 to 6, occasionally 7 at first in far southwest, then increasing 7 to severe gale 9 later in far south.
Sea state
Moderate or rough.
Weather
Showers, but rain in far south.
Visibility
Good, but moderate to poor in far south.

West Central Section

In northeast

Wind
Variable 2 to 4.
Sea state
Moderate.
Weather
Mainly fair.
Visibility
Good.

In south

Wind
Cyclonic 4 to 6, increasing 7 for a time in far southeast, then becoming easterly or southeasterly 3 to 5 later.
Sea state
Moderate occasionally rough.
Weather
Rain or drizzle at times with fog patches, becoming mainly fair later.
Visibility
Moderate or good, occasionally very poor at first.

In northwest

Wind
Southerly or southeasterly 3 to 5, occasionally 6 later.
Sea state
Moderate, occasionally slight at first.
Weather
Rain at times later.
Visibility
Good, occasionally moderate later.

Denmark Strait

In an area south of 70 north

Wind
Cyclonic, mainly southwesterly at first, 3 to 5, increasing 6 at times later.
Sea state
Slight, becoming mainly moderate.
Weather
Rain or drizzle, fog banks.
Visibility
Moderate or good, occasionally very poor.

In an area north of 70 north

Wind
Variable 2 to 4.
Sea state
Smooth or slight.
Weather
Mainly fair.
Visibility
Good.

North Iceland

In north

Wind
Variable, mainly northeasterly at first, 2 to 4.
Sea state
Slight.
Weather
Fog patches.
Visibility
Moderate or good, occasionally very poor.

In southeast

Wind
Northwesterly 3 to 5, becoming variable 2 to 4 later.
Sea state
Moderate.
Weather
Occasional drizzle.
Visibility
Good, occasionally poor.

In southwest

Wind
Westerly or northwesterly, becoming cyclonic later, 3 to 5.
Sea state
Moderate becoming slight.
Weather
Occasional rain or showers, fog patches.
Visibility
Moderate or good, occasionally very poor.

Norwegian Basin

Wind
Northerly or northwesterly 4 to 6, but variable 2 to 4 in far northeast.
Sea state
Moderate or rough.
Weather
Occasional rain or showers, becoming mainly fair in west.
Visibility
Good, occasionally poor in east.

Outlook for the following 24 hours

Risk of severe gales in East Central Section. Risk of gales in East Northern Section and West Northern 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.

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