Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 250000UTC, low 58 north 04 west 949 expected 60 north 05 east 971 by 260000UTC. Low 56 north 36 west 1007 expected 53 north 26 west 977 by same time. New high expected 36 north 16 west 1024 by that time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Northwest, backing southwest later, 5 to 7, occasionally gale 8 at first.
Sea state
High becoming very rough, occasionally rough later in far east.
Weather
Fair then rain.
Visibility
Good becoming poor.

Shannon

Wind
Northwest 7 to severe gale 9, backing south or southeast 5 to 7.
Sea state
High or very high, becoming rough or very rough.
Weather
Squally showers, rain later.
Visibility
Good, becoming poor later.

Rockall

Wind
Northwest 7 to severe gale 9, backing south or southeast 5 to 7.
Sea state
High or very high, becoming rough or very rough.
Weather
Squally showers, rain later.
Visibility
Good, becoming poor later.

Bailey

Storm warning
Issued:

At 250000UTC, low 58 north 04 west 949 expected 60 north 05 east 971 by 260000UTC. Northwesterly winds will reach storm force 10 in Faeroes until 251500UTC.

Wind
Northwest gale 8 to storm 10, backing west 4 to 6 later.
Sea state
High or very high, becoming rough or very rough later.
Weather
Squally showers, rain at first.
Visibility
Poor becoming good.

Faeroes

Storm warning
Issued:

At 250000UTC, low 58 north 04 west 949 expected 60 north 05 east 971 by 260000UTC. Northwesterly winds will reach storm force 10 in Faeroes until 251500UTC.

Wind
Cyclonic, becoming northwest, gale 8 to storm 10.
Sea state
Very rough or high.
Weather
Rain then squally showers.
Visibility
Poor becoming good.

Southeast Iceland

Wind
Northwesterly 7 to severe gale 9.
Sea state
Rough or very rough, occasionally high.
Weather
Rain.
Visibility
Poor.

East Northern Section

In northwest

Wind
Cyclonic 4 to 6, occasionally 7 at first.
Sea state
Moderate or rough, occasionally very rough at first.
Weather
Showers, wintry at first, occasional rain later.
Visibility
Moderate or good, occasionally poor later.

In southeast

Wind
Westerly or northwesterly, becoming cyclonic, 6 to gale 8.
Sea state
Rough or very rough, occasionally high at first.
Weather
Showers then occasional rain and drizzle.
Visibility
Moderate or good, occasionally poor.

West Northern Section

In north

Wind
Cyclonic 5 to 7, occasionally gale 8 in far west, becoming northerly or northeasterly 4 to 6 later.
Sea state
Moderate or rough, occasionally very rough.
Weather
Occasional rain or snow then wintry showers.
Visibility
Moderate or good, occasionally very poor at first in west. Light icing at first in far west.

In south

Wind
Westerly or southwesterly, veering northwesterly, 5 to 7, decreasing 4 for a time.
Sea state
Very rough, becoming rough, occasionally moderate later.
Weather
Occasional rain then wintry showers.
Visibility
Moderate or good, occasionally poor.

East Central Section

Wind
Cyclonic 4 to 6, increasing 7 or gale 8, occasionally severe gale 9 later.
Sea state
Rough or very rough, occasionally high.
Weather
Fair for a time in north, otherwise rain and drizzle, squally showers later in far west.
Visibility
Good for a time in north, otherwise moderate or poor.

West Central Section

In south

Wind
Cyclonic, becoming northerly or northwesterly, 5 to 7, occasionally gale 8 later.
Sea state
Rough or very rough, occasionally high later.
Weather
Occasional rain or drizzle with fog patches then squally showers.
Visibility
Moderate or poor, occasionally very poor at first, becoming good later.

In north

Wind
Cyclonic becoming northwesterly 3 to 5, increasing 6 or 7, occasionally gale 8 later.
Sea state
Rough occasionally very rough later.
Weather
Showers becoming wintry in west, rain for a time in west.
Visibility
Moderate or good, occasionally poor in east.

Denmark Strait

Wind
Northerly or northeasterly 6 to gale 8, occasionally severe gale 9 later in east.
Sea state
Moderate or rough, becoming very rough or high.
Weather
Fair at first in southwest otherwise occasional rain or snow.
Visibility
Good at first in southwest, otherwise moderate or poor, occasionally very poor. North of 67 north light icing in east with temperatures around ms03.

North Iceland

In area north of 67 north northerly or northeasterly 4 to 6

Wind
Increasing 7 or gale 8 in far southwest.
Sea state
Moderate or rough, occasionally very rough later in far southwest.
Weather
Wintry showers, rain or snow for a time in far southwest.
Visibility
Moderate or good, occasionally very poor in far southwest. Occasional light icing in far northwest, with temperatures around ms03.

In rest of area

Wind
Northerly or northeasterly, becoming cyclonic, 4 to 6, occasionally 7 later.
Sea state
Rough or very rough, occasionally moderate at first.
Weather
Occasional rain or showers.
Visibility
Moderate or poor, occasionally good.

Norwegian Basin

Wind
Easterly or southeasterly 6 to gale 8, becoming cyclonic 4 to 6, occasionally 7 later in far southwest.
Sea state
Rough or very rough.
Weather
Fair in far northeast, otherwise occasional rain or squally showers.
Visibility
Good in far northeast, otherwise moderate or good, occasionally poor.

Outlook for the following 24 hours

Storms expected in Rockall, Bailey and East Northern Section. Gales or severe gales expected in remaining areas.

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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