Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 301200UTC, low 70 north 04 west 998 expected 65 north 04 west 997 by 311200UTC. Low 58 north 05 west 1007 losing its identity by same time. Low 48 north 45 west 1009 expected 47 north 30 west 1006 by that time. at 301200UTC, high 57 north 35 west 1027 expected 57 north 33 west 1027 by 311200UTC

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Variable 2 to 4.
Sea state
Slight or moderate.
Weather
Mainly fair.
Visibility
Good, occasionally moderate.

Shannon

Wind
Northwest 3 to 5.
Sea state
Moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

Rockall

Wind
West or northwest 3 to 5.
Sea state
Moderate.
Weather
Showers, perhaps heavy and thundery.
Visibility
Good, occasionally moderate and perhaps poor.

Bailey

Wind
West or northwest 3 to 5.
Sea state
Moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

Faeroes

Wind
West or northwest 4 to 6, occasionally 3 at first.
Sea state
Slight or moderate, occasionally rough later in north.
Weather
Rain or showers.
Visibility
Good, occasionally moderate.

Southeast Iceland

Wind
In northeast, northwesterly 4 to 6, occasionally 7 in northeast. in southwest, variable 2 to 4.
Sea state
In northeast, slight or moderate, becoming rough later in northeast. in southwest, slight or moderate.
Weather
In northeast, rain or showers. in southwest, rain or showers.
Visibility
In northeast, good, occasionally moderate or poor. in southwest, good, occasionally moderate or poor.

East Northern Section

Wind
Northwesterly 4 to 6, decreasing 3 at times.
Sea state
Moderate, occasionally slight in north and later rough in east.
Weather
Mainly fair.
Visibility
Mainly good.

West Northern Section

In north

Wind
Westerly 3 to 5.
Sea state
Slight or moderate.
Weather
Occasional rain.
Visibility
Moderate or good.

In south

Wind
Northwesterly 3 to 5 at first in northeast and southwesterly later in northwest, otherwise variable 2 to 4.
Sea state
Slight or moderate.
Weather
Occasional rain.
Visibility
Moderate or good.

East Central Section

In north

Wind
Westerly 4 or 5 at first in northeast, otherwise variable 2 to 4, becoming easterly 4 to 6 later in southwest.
Sea state
Moderate.
Weather
Mainly fair.
Visibility
Moderate or good.

In south

Wind
Variable 3 or less at first in northeast, otherwise southeasterly 3 to 5, becoming cyclonic 4 to 6, occasionally 7 later.
Sea state
Moderate occasionally rough in west.
Weather
Rain or showers, occasionally heavy with risk thunder.
Visibility
Moderate or good, occasionally poor.

West Central Section

In north

Wind
Easterly 4 to 6, occasionally 7 in south, moderate occasionally rough.
Sea state
Rain or showers, occasionally heavy with risk thunder.
Weather
Moderate or good, occasionally poor.
Visibility

In south

Wind
Cyclonic 4 to 6, occasionally 7 in east.
Sea state
Moderate occasionally rough.
Weather
Rain or showers, occasionally heavy with risk thunder.
Visibility
Moderate or good, occasionally poor.

Denmark Strait

In far east

Wind
Northerly 4 to 6.
Sea state
Mainly moderate.
Weather
Mainly fair.
Visibility
Moderate or good.

In far south

Wind
Westerly 3 to 5.
Sea state
Slight or moderate.
Weather
Mainly fair.
Visibility
Moderate or good.

In rest of area

Wind
Variable 2 to 4.
Sea state
Slight or moderate.
Weather
Risk fog patches.
Visibility
Moderate or good, occasionally very poor.

North Iceland

Wind
Cyclonic 4 to 6, occasionally 7 in south.
Sea state
Moderate or rough.
Weather
Rain or showers, risk heavy in east, risk fog patches.
Visibility
Moderate or good, occasionally very poor.

Norwegian Basin

Wind
Westerly or southwesterly 4 to 6, occasionally 7 later in east.
Sea state
Moderate, occasionally slight at first in south and rough later.
Weather
Rain or showers, risk heavy with thunder.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours

Risk of gales in East Central Section, West Central Section and north Iceland.

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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