Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 110000UTC, low 52 north 33 west 989 expected 57 north 25 west 993 by 120000UTC. Low 42 north 37 west 1009 expected 45 north 25 west with little change by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
In west, southerly 3 to 5. in east, easterly or southeasterly 3 to 5 becoming variable 2 to 4.
Sea state
In west, moderate. in east, slight or moderate.
Weather
In west, thundery showers. in east, mainly fair.
Visibility
Good, occasionally poor in west.

Shannon

Wind
Southeast, veering south later, 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain, perhaps thundery later.
Visibility
Moderate or good, occasionally poor later.

Rockall

Wind
Southeast, veering south later, 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain, perhaps thundery later, fog patches.
Visibility
Moderate or good, occasionally very poor.

Bailey

Wind
Southeast, veering south later, 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain, perhaps thundery later, fog patches.
Visibility
Moderate or good, occasionally very poor.

Faeroes

Wind
Southwesterly 2 to 4 backing southeasterly 4 to 6.
Sea state
Slight or moderate, becoming moderate or rough later.
Weather
Fair then rain, fog patches later.
Visibility
Good, becoming moderate or poor, occasionally very poor later.

Southeast Iceland

Wind
Southwesterly 2 to 4 backing southeasterly 4 to 6, then backing northeasterly later in west.
Sea state
Slight or moderate, becoming moderate or rough later.
Weather
Fair then rain, fog patches later.
Visibility
Good, becoming moderate or poor, occasionally very poor later.

East Northern Section

Wind
Southeasterly 3 at first in far northwest, otherwise cyclonic 4 to 6, occasionally 7 later near southern iceland.
Sea state
Slight at first in north, otherwise moderate or rough.
Weather
Fair at first in far northwest, otherwise rain, drizzle or showers, perhaps thundery in south, fog patches except in far northwest.
Visibility
Moderate or good, occasionally very poor except in far northwest.

West Northern Section

In southeastern half of the area

Wind
Variable 2 to 4 in far southeast, but elsewhere northerly or northeasterly 4 to 6, backing northwesterly later in south.
Sea state
Slight at first in north, otherwise moderate or rough.
Weather
Fair at first in north, otherwise rain, drizzle or showers, perhaps thundery, fog patches.
Visibility
Good at first in north, otherwise moderate or good, occasionally very poor.

In northwestern half of the area

Wind
Mainly variable 2 to 4, but in far south, northerly 5 or 6, backing northwesterly 4 or 5 later.
Sea state
Slight or moderate in north, moderate or rough in south.
Weather
Mainly fair.
Visibility
Good.

East Central Section

In eastern half of the area

Wind
Southerly or southwesterly 4 or 5, occasionally 6 in north.
Sea state
Moderate or rough.
Weather
Rain, drizzle or showers, thundery at times, fog patches at first in north.
Visibility
Moderate or good, becoming poor at times, but occasionally very poor at first in north.

In western half of the area

Wind
Cyclonic mainly southwesterly 4 to 6, occasionally 7 at first in north.
Sea state
Rough, occasionally moderate later.
Weather
Rain, drizzle or showers, thundery at times, fog patches in north.
Visibility
Moderate or good, occasionally very poor in north and poor in south.

West Central Section

In far northeast

Wind
Cyclonic 4 to 6.
Sea state
Moderate or rough.
Weather
Rain, drizzle or showers, perhaps thundery, fog patches.
Visibility
Moderate or good, occasionally very poor.

In the rest of the area

Wind
Westerly or northwesterly 4 to 6, occasionally 7 at first in north, decreasing 2 or 3 later in far southwest.
Sea state
Rough, occasionally very rough at first in north and east, becoming moderate later in south and west.
Weather
Rain or showers, but becoming fair in southwest.
Visibility
Moderate or good, occasionally poor at first in north.

Denmark Strait

In area to the south of 70 north

Wind
Southwesterly 3 to 5 becoming variable 3 or less, then becoming northeasterly 3 to 5 later in southeast.
Sea state
Slight or moderate.
Weather
Occasional rain later in far southeast, fog patches at first, fog banks later.
Visibility
Moderate or good, occasionally very poor.

In area to the north of 70 north

Wind
Variable 2 to 4 becoming southeasterly 3 to 5, then backing easterly later.
Sea state
Smooth or slight becoming slight or moderate.
Weather
Occasional rain or drizzle later, fog patches.
Visibility
Moderate or good, occasionally very poor.

North Iceland

In far northeast of the area

Wind
Northwesterly 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain or sleet.
Visibility
Good, occasionally poor.

In the rest of the area

Wind
Variable, but mainly southwesterly in south, 2 to 4, becoming southerly or southeasterly 3 to 5.
Sea state
Slight or moderate.
Weather
Mainly fair, then rain in southeast, and occasional rain or drizzle later in far northwest, fog banks developing in south and west.
Visibility
Moderate or good, occasionally very poor in south and west and poor in east and north.

Norwegian Basin

Wind
Westerly or southwesterly 4 to 6, occasionally 7 at first in northeast, then backing southeasterly later in south and west.
Sea state
Moderate or rough in north, moderate throughout in south.
Weather
Showers at first in far northeast, otherwise fair, but then rain in western and central areas.
Visibility
Moderate or good, becoming moderate or poor later in west.

Outlook for the following 24 hours

Risk of gales later in southeastern Norwegian Basin.

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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