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yellow Warnings have been issued for the United Kingdom

High Seas forecast

Issued at 0800 UTC on Friday 24 February 2017
by the Met Office, Exeter, United Kingdom
for the period 0800 UTC Friday 24 February until 0800 UTC Saturday 25 February 2017

Storm warnings

At 240000UTC, low 56 north 34 west 976 expected 66 north 28 west 941 by 250000UTC. Southeasterly winds will reach storm force 10 in the northeast and far north of East Northern Section and the north of Bailey between 241100UTC and 241600UTC, in sea area Southeast Iceland between 241300UTC and 250100UTC, in sea area Faeroes between 241700UTC and 250300UTC, in sea area north Iceland to the south of 71 north from 241500UTC onwards, in Denmark Strait to the south of 69 north from 241800UTC onwards and in the northwest of Norwegian Basin from 250000UTC onwards. Westerly winds will also reach storm force 10 in the far west of West Northern Section, between 59 north and 61 north, after 250700UTC

General synopsis

At 240000UTC, low 56 north 34 west 976 expected 66 north 28 west 941 by 250000UTC. New low expected 51 north 41 west 997 by same time. New high expected 78 north 06 west 1014 by that time. Low 49 north 39 west 983 moving rapidly northeast and losing its identity. Low 66 north 32 west 987 losing its identity

Area forecasts for the next 24 hours

Sole

Variable 4 becoming southwesterly 5 to 7, occasionally gale 8 later. Moderate or rough becoming rough or very rough. Drizzle later. Good, occasionally moderate later.

Shannon

South or southwest 4 or 5 increasing 7 to severe gale 9. Rough, becoming very rough or high. Rain. Good, becoming moderate or poor.

Rockall

South or southwest 4 or 5 increasing 7 to severe gale 9. Rough, becoming very rough or high. Rain. Good, becoming moderate or poor.

Bailey

Southerly 4 or 5 increasing 7 to severe gale 9, occasionally storm 10 in north. Rough, becoming very rough or high. Rain. Moderate or poor.

Faeroes

Southeasterly 5 to 7 increasing gale 8 to storm 10, then becoming cyclonic 6 to gale 8 later. Rough or very rough becoming very rough or high. Snow showers then rain. Good, occasionally poor.

Southeast Iceland

Southeasterly 5 to 7 increasing gale 8 to storm 10, then becoming cyclonic 6 to gale 8 later. Rough or very rough becoming very rough or high. Snow showers then rain. Good, occasionally poor.

East Northern Section

In north

Southeasterly becoming cyclonic, 7 to severe gale 9, occasionally storm 10 at first in northeast and far north, then becoming southwesterly 5 to 7, then increasing 7 to severe gale 9 again later. Rough becoming very rough, then becoming high later. Rain, with snow for a time in far north, then squally sleet and snow showers. Moderate or poor, occasionally very poor.

In south

Southerly or southwesterly veering westerly, 6 to gale 8, increasing severe gale 9 at times. Rough or very rough becoming very rough or high. Rain then sleet and snow showers. Moderate or poor.

West Northern Section

In far northwest

Variable 3 or 4 becoming northwesterly 4 or 5, then backing westerly 5 to 7. Moderate becoming rough. Fair then snow. Good, becoming moderate or good, occasionally very poor. Light or moderate icing developing later.

In rest of region

Cyclonic at first in northeast, otherwise westerly or southwesterly, 6 to gale 8, increasing severe gale 9 at times, but then increasing storm 10 later in far west between 59 north and 61 north. Rough or very rough becoming very rough or high. Rain or snow at first in northeast, otherwise squally sleet and snow showers. Moderate or poor, occasionally very poor. Light or moderate icing developing in west and north, becoming locally severe later in far west.

East Central Section

Southwesterly veering northwesterly 6 to gale 8, occasionally severe gale 9 in west and north, then backing westerly 5 to 7 later. Rough or very rough becoming very rough or high. Rain or drizzle, then showers in north, but becoming fair later in south. Moderate or good, occasionally poor.

West Central Section

Cyclonic becoming northwesterly, 6 to gale 8, occasionally severe gale 9 at first in south, then backing westerly or southwesterly 5 or 6, then increasing 7 to severe gale 9 later. Very rough or high. Rain at times, with occasional snow in far north. Moderate or poor, occasionally very poor in far north.

Denmark Strait

Variable 3 or 4 at first in west, otherwise easterly or northeasterly 5 or 6 increasing 7 to severe gale 9, occasionally storm 10 to the south of 69 north, then becoming cyclonic later. Moderate at first in west, otherwise rough or very rough, but becoming high later in east. Snow or snow showers, with rain or sleet at times in southeast. Moderate to very poor, but mainly good at first in west. Light or moderate icing at first within 100 miles of ice edge, but becoming locally severe or very severe later near ice edge, with temperatures ms03 to ms06.

North Iceland

In north

Variable 3 or 4 becoming southeasterly 5 to 7, then increasing gale 8 or severe gale 9 later in south. Moderate becoming rough or very rough, then becoming high later in south. Snow showers, mainly in west. Moderate or good, occasionally very poor in west. Light or moderate icing developing, with temperatures ms02 to ms04.

In south

Southeasterly 6 to gale 8 increasing severe gale 9 or storm 10. Rough or very rough becoming high or very high. Snow showers at first in west, but fair at first in east, then rain or snow. Moderate or good, becoming moderate to very poor.

Norwegian Basin

In west

Northeasterly veering southeasterly 5 or 6, decreasing 4 for a time at first, then increasing 7 to severe gale 9, occasionally storm 10 later in northwest. Rough or very rough, becoming very rough or high later. Rain later. Moderate or good, becoming moderate or poor later.

In east

Northerly 5 to 7 becoming variable 3 or 4, then becoming southeasterly 6 to gale 8 later in west. Rough or very rough. Snow showers then fair, then rain later in west. Moderate or good, occasionally poor later in west.

Outlook for following 24 hours

Violent storms expected in West Northern Section. Storms expected in West Central Section, Denmark Strait, north Iceland and Norwegian Basin, possibly violent in north Iceland. Severe gales expected in Rockall, Bailey, Faeroes, Southeast Iceland, East Northern Section and East Central Section. Gales expected in Sole and Shannon.

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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