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High Seas forecast

High seas forecasts for the next 24 hours

Issued: 2000 on Thu 30 Oct 2014 UTC

The high seas forecast, issued by the Met Office, on behalf of the Maritime and Coastguard Agency

Storm warnings

At 301200UTC, low 58 north 28 west 978 expected 58 north 24 west 973 by 311200UTC. Northeasterly winds will reach storm force 10 or violent storm force 11 south of 70 north in Denmark Strait from 310300UTC. Northeasterly winds will reach storm force 10 north of 60 north in both East Northern Section and West Northern Section throughout. Northeasterly winds will reach storm force 10 south of 70 north in north Iceland from 311200UTC. Northeasterly winds will reach storm force 10 in the far west of Southeast Iceland until 311200UTC

General synopsis

At 301200UTC, low 58 north 28 west 978 expected 58 north 24 west 973 by 311200UTC. High 65 north 45 west 1028 expected 73 north 30 west 1027 by same time

Sole

South 5 to 7, veering northwest 4 or 5. Moderate or rough. Rain or showers. Moderate or good.

Shannon

South, veering southwest, 5 to 7. Rough, occasionally very rough later in west. Occasional rain, fair later. Moderate or poor, becoming good.

Rockall

Southeast veering southwest 5 to 7, perhaps gale 8 later. Moderate or rough, occasionally very rough later. Occasional rain. Moderate or good, occasionally poor.

Bailey

In north, easterly 7 to severe gale 9, veering southeasterly 5 or 6 later. in south, southeasterly veering southerly 5 to 7, perhaps gale 8 later. In north, rough or very rough. in south, rough. In north, occasional rain. in south, occasional rain, fair later. In north, moderate or good, occasionally poor. in south, moderate or poor, becoming good.

Faeroes

Easterly 6 to gale 8, increasing severe gale 9 for a time in north, then veering southerly 4 or 5 later. Moderate or rough, occasionally very rough in west. Occasional rain. Moderate or good, occasionally poor.

Southeast Iceland

Easterly 7 to severe gale 9, increasing storm 10 for a time in far west, veering southeasterly 4 or 5 later in south. Rough or very rough, occasionally high in far west. Rain then showers. Moderate or good, occasionally poor.

East Northern Section

In north

Easterly or northeasterly gale 8 to storm 10, decreasing 5 to 7. Very rough or high. Occasional rain. Moderate or poor, occasionally good.

In south

Cyclonic 5 or 6, becoming southwesterly 7 to severe gale 9. Rough or very rough, occasionally high later. Rain or showers. Moderate or good, occasionally poor.

West Northern Section

In north

Northeasterly gale 8 to storm 10, decreasing 5 or 6 later in east. Very rough or high. Rain or showers. Moderate or poor.

In south

Cyclonic in east, otherwise northerly backing westerly 6 to gale 8, occasionally severe gale 9 at first. Very rough or high. Rain or showers. Moderate or good, occasionally poor.

East Central Section

Westerly or southwesterly 6 to gale 8, occasionally severe gale 9 in north. Rough or very rough, occasionally high in north. Showers, rain later. Moderate or good, occasionally poor later.

West Central Section

Northwesterly backing southwesterly 6 to gale 8, occasionally severe gale 9 at first in northeast. Rough or very rough. Rain later. Moderate or good, occasionally poor later.

Denmark Strait

In area south of 70 north

Northeasterly 5 to 7 increasing severe gale 9 to violent storm 11. Rough or very rough becoming high. Snow showers, rain or snow later. Moderate or poor. Light to moderate icing expected between 68 north and 70 north with temperatures between ms02 and ms04.

In area north of 70 north

Variable, mainly northerly, 3 or 4. Slight or moderate. Fair. Good.

North Iceland

In north

Variable 3 or 4. Slight or moderate, occasionally rough at first in east. Fair. Good.

In south

Easterly 5 to 7 increasing gale 8 to storm 10. Moderate or rough becoming very rough. Rain and snow later. Good, becoming moderate or poor.

Norwegian Basin

Variable 3 or 4 at first in east, otherwise southeasterly 5 or 6 increasing 7 to severe gale 9. Moderate or rough, occasionally very rough later in west. Rain later. Moderate or good, occasionally poor later.

Outlook for following 24 hours

From Fri 31 Oct 2014

Violent storms are expected in Denmark Strait. Storms are expected in West Northern Section. Severe gales are expected in East Northern Section, north Iceland and Norwegian Basin, with gales expected in all other areas except Faeroes and Southeast Iceland.

Unscheduled storm warnings are broadcast via Safetynet and in bulletin WONT54 EGRR available via some internet and ftpmail outlets

High Seas overview

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 containg forecast wind direction and force, weather and visibility for the next 24 hours with an outlook for the following 24 hours.

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.

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