Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 240000UTC, low 63 north 21 west 1000 expected 68 north 10 west with little change by 250000UTC. High 52 north 14 west 1021 expected 57 north 03 east 1022 by same time. Low Iberia 1010 expected 48 north 13 west with little change by that time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Northeast 3 to 5, becoming cyclonic 4 to 6.
Sea state
Slight or moderate, occasionally rough later in west.
Weather
Thundery showers, fog patches.
Visibility
Good, occasionally very poor.

Shannon

Wind
Variable 2 to 4, becoming northeast 4 to 6.
Sea state
Moderate, but slight at first in southeast.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Rockall

Wind
Southwesterly 4 or 5, but variable 4 or less later in southeast.
Sea state
Moderate.
Weather
Rain or showers.
Visibility
Good, occasionally moderate.

Bailey

Wind
Southwest 5 or 6.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Southwest 4 or 5.
Sea state
Slight or moderate, becoming moderate or rough.
Weather
Showers.
Visibility
Good.

Southeast Iceland

Wind
Cyclonic 3 to 5, becoming southwesterly 5 or 6.
Sea state
Moderate or rough.
Weather
Drizzle, fog patches.
Visibility
Good, occasionally very poor.

East Northern Section

Wind
Cyclonic in north, otherwise westerly or southwesterly 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain or showers.
Visibility
Moderate or good.

West Northern Section

Wind
Variable 2 to 4 in north, otherwise westerly or southwesterly 3 to 5, increasing 5 or 6.
Sea state
Moderate, occasionally slight in north and rough in south.
Weather
Occasional rain or showers, fog patches later in far northwest.
Visibility
Moderate or good, occasionally very poor later in far northwest.

East Central Section

In northwestern half of the area

Wind
Cyclonic 4 or 5, becoming northerly or northwesterly 3 to 5, backing southwesterly later in north.
Sea state
Moderate, occasionally rough at first.
Weather
Occasional rain or drizzle, becoming fair in northwest.
Visibility
Moderate or good.

In southeastern half of the area

Wind
Northerly or northeasterly 3 to 5, occasionally 6 later.
Sea state
Moderate, occasionally slight at first and rough later.
Weather
Occasional rain or showers, perhaps thundery, fog patches later.
Visibility
Moderate or good, occasionally very poor later.

West Central Section

Wind
Westerly or northwesterly, backing westerly or southwesterly later in northwest, 3 to 5, but becoming variable 2 to 4 in southwest.
Sea state
Moderate, occasionally rough at first in far northeast.
Weather
Occasional drizzle becoming mainly fair.
Visibility
Good, occasionally moderate at first.

Denmark Strait

Wind
Variable 2 to 4, but cyclonic 3 to 5 at first in southeast.
Sea state
Slight or moderate, occasionally smooth in north.
Weather
Occasional drizzle, fog banks.
Visibility
Moderate or good, occasionally very poor.

North Iceland

Wind
Southerly or southeasterly 2 to 4 at first in north, otherwise cyclonic 3 to 5, occasionally 6 in east.
Sea state
Slight or moderate, occasionally rough later in far south.
Weather
Occasional rain or drizzle, fog banks.
Visibility
Moderate or good, occasionally very poor.

Norwegian Basin

Wind
Cyclonic becoming southwesterly, 4 to 6.
Sea state
Slight or moderate.
Weather
Drizzle with fog patches then showers.
Visibility
Moderate or good, occasionally very poor at first.

Outlook for the following 24 hours

Gales expected in West Central 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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