Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 050000UTC, low 63 north 35 west 1011 expected 62 north 30 west 1006 by 060000UTC. High 51 north 33 west 1030 expected 50 north 24 west 1027 by same time. Low northern Scotland 1002 moving slowly eastwards and losing its identity

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Westerly or northwesterly 4 to 6 decreasing 2 to 4.
Sea state
Moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

Shannon

Wind
Westerly or northwesterly 4 to 6, decreasing 2 to 4 later.
Sea state
Rough becoming moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

Rockall

Wind
Westerly or northwesterly 4 to 6, decreasing 2 to 4 later.
Sea state
Rough becoming moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

Bailey

Wind
North 4 to 6 backing west or northwest 3 or 4.
Sea state
Rough at first in southeast, otherwise moderate.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Northeast 4 to 6 backing northwest 3 to 5.
Sea state
Rough at first in far south, otherwise slight or moderate.
Weather
Showers.
Visibility
Good, occasionally poor at first in southeast.

Southeast Iceland

Wind
Cyclonic becoming southwesterly, 3 to 5.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

East Northern Section

In far northwest

Wind
Southerly 4 becoming cyclonic 2 or 3.
Sea state
Moderate.
Weather
Occasional rain.
Visibility
Moderate or good, occasionally poor later.

In the rest of the area

Wind
Northwesterly 3 or 4 at first in east, otherwise westerly or southwesterly 4 to 6.
Sea state
Slight or moderate in north, moderate or rough in south.
Weather
Fair at first in east, otherwise rain or drizzle at times.
Visibility
Good at first in east, otherwise moderate or good, occasionally poor in west.

West Northern Section

In northern half of the area

Wind
Cyclonic 2 to 4, becoming northerly or northeasterly 4 to 6 later except in far east.
Sea state
Slight or moderate.
Weather
Occasional rain or drizzle, fog patches until later in west.
Visibility
Moderate or good, occasionally poor in east and very poor until later in west.

In southern half of the area

Wind
Southwesterly 5 or 6, veering westerly or northwesterly 3 or 4 except in far southeast.
Sea state
Moderate or rough.
Weather
Rain or drizzle, fog patches developing in west.
Visibility
Moderate or good, occasionally poor in east and very poor in west.

East Central Section

In northern half of the area

Wind
Northwesterly backing westerly or southwesterly, 3 to 5, increasing 6 later in northwest.
Sea state
Moderate, becoming rough later in northwest.
Weather
Showers, then rain later in northwest.
Visibility
Good, becoming moderate or poor later in northwest.

In southern half of the area

Wind
Northerly or northeasterly 3 to 5, veering easterly 4 to 6 in far south.
Sea state
Moderate.
Weather
Fair in north, rain at times in south.
Visibility
Good, occasionally moderate in south.

West Central Section

In northern half of the area

Wind
Southwesterly 4 or 5, occasionally 6 in far north and 3 in south.
Sea state
Slight or moderate, becoming rough later in far northeast.
Weather
Occasional drizzle, then rain in far north.
Visibility
Moderate or good, becoming moderate or poor in far north.

In southern half of the area

Wind
Easterly or northeasterly 4 or 5 at first in southeast, otherwise variable 2 to 4.
Sea state
Moderate, occasionally slight later.
Weather
Showers in east.
Visibility
Good.

Denmark Strait

In area to the south of 71 north

Wind
Southwesterly 4 to 6 at first in east, otherwise variable 2 to 4, but becoming northerly or northeasterly 4 to 6 later.
Sea state
Slight or moderate, becoming moderate or rough later.
Weather
Occasional rain developing, fog patches.
Visibility
Moderate or good, occasionally very poor.

In area to the north of 71 north

Wind
Cyclonic 3 to 5 becoming northerly or northeasterly 4 to 6, occasionally 7 at first.
Sea state
Slight or moderate, occasionally rough at first.
Weather
Occasional rain at first.
Visibility
Good, occasionally moderate at first.

North Iceland

In northwestern half of the area

Wind
Cyclonic becoming northerly or northeasterly, 4 to 6, but increasing 7 or gale 8 for a time at first in far northwest.
Sea state
Slight or moderate becoming moderate or rough.
Weather
Showers, fog patches at first.
Visibility
Moderate or good, occasionally very poor at first.

In southeastern half of the area

Wind
Southwesterly 4 or 5 at first in north, otherwise variable 2 to 4.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

Norwegian Basin

In area to the west of 00 east

Wind
Northerly or northeasterly backing northwesterly, 3 to 5, increasing 6 for a time in far southeast.
Sea state
Slight or moderate.
Weather
Mainly fair.
Visibility
Good.

In area to the east of 00 east

Wind
Northeasterly 4 or 5 backing northerly 4 to 6.
Sea state
Slight or moderate, occasionally rough in far south.
Weather
Rain for a time in far south.
Visibility
Good, becoming moderate or poor for a time in far south.

Outlook for the following 24 hours

Gales expected in the far northwest of East Northern Section, the far northeast of West Northern Section and the south of Denmark Strait.

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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