Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 061200UTC, low 59 north 15 west 986 expected 62 north 12 west 974 by 071200UTC. New high expected 51 north 35 west 1023 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Westerly or northwesterly backing southwesterly later, 3 to 5, occasionally 6 later.
Sea state
Moderate or rough.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Shannon

Wind
Westerly or southwesterly 5 or 6, occasionally 7 in north.
Sea state
Rough, occasionally very rough in north.
Weather
Rain or showers, perhaps thundery.
Visibility
Moderate or good, occasionally poor.

Rockall

Wind
Southwesterly 6 to gale 8, occasionally severe gale 9 later.
Sea state
Rough or very rough, occasionally high later.
Weather
Rain or thundery showers.
Visibility
Moderate or good, occasionally poor.

Bailey

Storm warning
Issued:

No storms.

Wind
Cyclonic 6 to gale 8, becoming southwest gale 8 to storm 10, then northwest 6 to gale 8 later.
Sea state
Rough or very rough, becoming very rough or high.
Weather
Rain or thundery showers.
Visibility
Moderate or good, occasionally poor.

Faeroes

Wind
South veering southwest 5 to 7, becoming cyclonic 7 to severe gale 9 later.
Sea state
Moderate or rough, becoming rough or very rough, occasionally high later.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

Southeast Iceland

Wind
Cyclonic 6 to gale 8, occasionally severe gale 9 in northwest.
Sea state
Moderate or rough, becoming rough or very rough.
Weather
Rain.
Visibility
Moderate or good, occasionally poor.

East Northern Section

In east

Wind
Cyclonic 7 to severe gale 9, becoming northerly or northwesterly 6 to gale 8 later.
Sea state
Rough or very rough, becoming very rough or high for a time.
Weather
Rain or showers, thundery at times.
Visibility
Moderate or good, occasionally poor.

In west

Wind
Cyclonic becoming northerly or northwesterly, 5 to 7.
Sea state
Moderate or rough, occasionally very rough in east.
Weather
Occasional rain then showers.
Visibility
Moderate or good, occasionally poor.

West Northern Section

In north

Wind
Southwesterly 4 or 5 at first in northwest, otherwise westerly or northwesterly 3 to 5, occasionally 6 in far east, then becoming variable 2 to 4 later.
Sea state
Moderate.
Weather
Mainly fair.
Visibility
Good.

In south

Wind
Cyclonic becoming westerly or northwesterly, 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain at first in east.
Visibility
Moderate or good, occasionally poor at first in east.

East Central Section

In north

Wind
Westerly or northwesterly 4 to 6, occasionally 7 in north.
Sea state
Rough or very rough.
Weather
Showers, perhaps thundery.
Visibility
Moderate or good, occasionally poor.

In south

Wind
Westerly or northwesterly becoming cyclonic, 4 to 6, occasionally 7 later in south.
Sea state
Moderate or rough.
Weather
Thundery rain at times.
Visibility

West Central Section

In northeast

Wind
Westerly or northwesterly 4 to 6, occasionally 7 at first in northeast.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good.

In southwest

Wind
Variable 2 to 4, becoming easterly or southeasterly 4 to 6, occasionally 7 later in far west.
Sea state
Moderate or rough.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

Denmark Strait

In far southeast

Wind
Northerly or northwesterly 3 to 5.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good.
Wind
Elsewhere, southwesterly 3 to 5, becoming variable 2 to 4 for a time.
Sea state
Slight or moderate.
Weather
Fog patches.
Visibility
Moderate or good, occasionally very poor.

North Iceland

Wind
Cyclonic 4 to 6.
Sea state
Moderate or rough, becoming slight or moderate northwest, occasionally very rough in southeast.
Weather
Showers in northwest, occasional rain in southeast.
Visibility
Moderate or good, occasionally poor in southeast.

Norwegian Basin

Wind
Southwesterly 4 or 5 at first in east, otherwise southerly or southeasterly 5 to 7, increasing gale 8 for a time in south, veering southwesterly 4 to 6 later.
Sea state
Moderate or rough, occasionally very rough later in southwest.
Weather
Rain at times then showers later.
Visibility
Moderate or poor becoming good.

Outlook for the following 24 hours

Severe gales expected in Hebrides, Bailey, Fair Isle, Faeroes and Southeast Iceland. Gales expected in Rockall and East 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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