Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 191200UTC, low 62 north 02 west 1000 expected 68 north 05 west 988 by 201200UTC. Low 62 north 16 west 995 losing its identity by same time. High 50 north 48 west 1018 dissipating by that time. at 191200UTC, low 42 north 35 west 1003 expected 43 north 28 west 1004 by 201200UTC. Low 63 north 50 west 1007 losing its identity by same time.

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Cyclonic 3 or 4, becoming variable 3 or less, then easterly or northeasterly 2 to 4 later.
Sea state
Moderate, becoming slight or moderate.
Weather
Rain and fog patches at first.
Visibility
Moderate or good, occasionally very poor at first.

Shannon

Wind
Southwest veering west, 3 to 5, becoming variable 3 or less.
Sea state
Moderate.
Weather
Showers.
Visibility
Good.

Rockall

Wind
Southwest 3 to 5.
Sea state
Moderate.
Weather
Showers.
Visibility
Good.

Bailey

Wind
West or southwest 4 to 6, occasionally 7 later.
Sea state
Moderate becoming moderate or rough later.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Cyclonic 3 or 4, becoming southwest 4 to 6, occasionally 7 later.
Sea state
Slight or moderate, occasionally rough.
Weather
Showers.
Visibility
Moderate or good.

Southeast Iceland

Wind
Cyclonic 3 to 5, occasionally 6 in south, becoming variable 3 or less in the north.
Sea state
Moderate, occasionally rough in south and slight at times in far north.
Weather
Rain or showers.
Visibility
Moderate or good.

East Northern Section

In north

Wind
Cyclonic 3 to 5, but northerly or northeasterly 5 to 7 at first in northwest.
Sea state
Slight or moderate, occasionally rough at first in northwest and later in east.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

In south

Wind
Cyclonic, mainly westerly or southwesterly 4 to 6.
Sea state
Moderate, occasionally rough later in northeast.
Weather
Showers.
Visibility
Good.

West Northern Section

In northeast

Wind
Northerly or northeasterly, backing northwesterly in south, 4 to 6, occasionally 7 at first in north.
Sea state
Moderate or rough.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

In southeast

Wind
Northwesterly backing westerly, 3 to 5, occasionally 2 later.
Sea state
Moderate.
Weather
Fair.
Visibility
Good.

In southwest

Wind
Northwesterly, becoming cyclonic then variable later, 2 to 4.
Sea state
Moderate.
Weather
Fair.
Visibility
Good.

In northwest

Wind
Northeasterly 3 to 5, becoming variable 2 to 4 later.
Sea state
Moderate.
Weather
Showers at first.
Visibility
Moderate or good, occasionally poor at first.

East Central Section

In north

Wind
Westerly or southwesterly backing southwesterly 3 to 5, becoming variable 3 or less later in south.
Sea state
Moderate.
Weather
Showers at first.
Visibility
Good.

In south

Wind
Variable 2 to 4, becoming cyclonic mainly easterly or southeasterly 4 to 6, occasionally 7 for a time in south.
Sea state
Moderate, occasionally rough later in southwest.
Weather
Rain later, perhaps thundery in far south.
Visibility
Moderate or good, occasionally poor later.

West Central Section

In north

Wind
Westerly or northwesterly 3 to 5, becoming variable 2 to 4 later.
Sea state
Moderate.
Weather
Mainly fair, good.
Visibility

In south

Wind
Variable 3 or less at first in north, otherwise easterly or northeasterly 4 to 6, occasionally 7 for a time in southeast, veering southeasterly later in west.
Sea state
Moderate, occasionally rough later in southeast.
Weather
Mainly fair, but occasional rain in southeast.
Visibility
Moderate or good, occasionally poor later in southeast.

Denmark Strait

Wind
Northeasterly 5 or 6, occasionally 7 at first in east, decreasing 3 to 5 later, becoming variable 3 or less later in far west.
Sea state
Moderate or rough, but slight or moderate in west and north.
Weather
Rain at times near Iceland, fog patches in north and west.
Visibility
Moderate or good, occasionally very poor in north and west.

North Iceland

In north

Wind
Variable 2 to 4 at first and until later in far northwest, otherwise northeasterly 4 to 6.
Sea state
Slight or moderate, occasionally rough later in southeast.
Weather
Fog banks and drizzle in northwest.
Visibility
Moderate or good, occasionally very poor in northwest.

In south

Wind
Variable 3 or less at first in southeast, otherwise cyclonic 5 to 7, occasionally 4 in south, but increasing gale 8 at times later in east.
Sea state
Moderate or rough, occasionally very rough later in northeast.
Weather
Rain at times, fog banks at first in south, but mainly fair in far northwest.
Visibility
Moderate or good, occasionally very poor in southeast and poor elsewhere.

Norwegian Basin

Wind
Cyclonic becoming southwesterly 4 to 6, occasionally 7 at first and later in west.
Sea state
Moderate or rough, but slight at first in far northeast.
Weather
Occasional rain or drizzle and fog patches, then showers later.
Visibility
Moderate or good, occasionally very poor at first.

Outlook for the following 24 hours

Severe gales in the west of West Central Section and gales expected in north Iceland and 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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