High seas forecast

Issued by the Met Office at

For the period until

Storm warnings

At 260000UTC, developing low 46 north 41 west 996 expected 55 north 29 west 967 by 270000UTC. Winds will reach storm force 10 at times between 100 and 300 miles from the centre in the southern semicircle from 260600UTC. Westerly winds occasionally reaching violent storm force 11 between 100 and 150 miles from the centre in the southern quadrant from 240400UTC.

General synopsis

At 260000UTC, developing low 46 north 41 west 996 expected 55 north 29 west 967 by 270000UTC. Low 65 north 11 west 995 expected 68 north 01 west 973 by same time. Low 63 north 36 west 989 losing its identity by that time. at 260000UTC high 42 north 15 west 1029 expected 40 north 15 west 1027 by 270000UTC.

Area forecasts for the next 24 hours

Sole

Southerly or southwesterly 4 to 6, occasionally 7 later in west. Moderate or rough in west, otherwise slight or moderate. Rain then showers. Moderate or good, occasionally poor.

Shannon

Southerly or southwesterly 4 to 6, increasing 7 or gale 8 later. Moderate or rough, becoming rough or very rough later, occasionally high later in west. Rain or showers. Good, becoming moderate or poor.

Rockall

Southerly or southwesterly 4 to 6, but cyclonic 3 to 5 at first in north, increasing 7 or gale 8 later. Moderate or rough, becoming rough or very rough later, occasionally high later in west. Rain or showers. Good, becoming moderate or poor.

Bailey

Northwest 4 or 5, becoming cyclonic 6 to gale 8 later. Moderate or rough. Occasional rain. Good, occasionally poor.

Faeroes

In east, southwesterly 6 to gale 8, becoming cyclonic 4 to 6. in west, cyclonic 3 or 4, becoming easterly 5 to 7 later. In east, moderate or rough. in west, moderate or rough. In east, rain. in west, rain then showers. In east, good, occasionally poor. in west, good, occasionally poor.

Southeast Iceland

Cyclonic 3 or 4, becoming easterly 5 to 7 later, perhaps gale 8 later. Moderate or rough. Rain then showers. Good, occasionally poor.

East Northern Section

In northern half of the area

Westerly or southwesterly 4 or 5, becoming variable 3 or less, then becoming northeasterly 7 to severe gale 9 later. Rough, becoming moderate or rough later. Showers, wintry at times in north, then rain or drizzle later except in northwest. Moderate or good, occasionally poor in north.

In southern half of the area

cyclonic 4 to 6 increasing 6 to gale 8, then gale 8 to storm 10 later. Moderate or rough, becoming rough or very rough later, occasionally high later in far south. Occasional rain or showers, perhaps thundery and squally later. Moderate or good, occasionally poor.

West Northern Section

In northern half of the area

Cyclonic, becoming northerly or northeasterly, 5 to 7, occasionally gale force 8 at first in north and later elsewhere. Rough or very rough, becoming moderate or rough later. Showers, wintry at times, turning to sleet or snow at times in northwest. Moderate or good, becoming poor at times, but occasionally very poor in northwest.

In southern half of the area

Variable 2 to 4, becoming northerly or northeasterly, becoming cyclonic in southeast, then northwesterly later, 4 to 6, increasing 7 to severe gale 9 in southeast. Moderate or rough, becoming very rough later in southeast, occasionally high later in far southeast. Rain at times in southeast, perhaps thundery, otherwise mainly fair, showers later, these turning wintry later in west. Moderate or good, occasionally poor in southeast.

East Central Section

Cyclonic 4 or 5 at first in far northwest, otherwise southerly or southwesterly, veering westerly later, 4 to 6, increasing 7 to severe gale 9, increasing severe gale 9 to violent storm 11 for a time later in north. Moderate or rough, becoming rough or very rough, then very rough or high later, occasionally very high later in north. Rain at times, fog patches at first in west and north, showers later. Moderate or good, occasionally poor in east and south and very poor at first in west and north.

West Central Section

Cyclonic, becoming westerly later, 6 to gale 8, occasionally severe gale force 9 at first in west, increasing severe gale 9 or storm 10 for a time in north. Moderate or rough at first in north, otherwise rough or very rough, becoming very rough or high, occasionally very high later in northeast. Rain or showers, thundery at times, showers turning wintry later in north. Moderate or rough, occasionally poor and very poor later in north.

Denmark Strait

Northeasterly 6 to gale 8, but variable 3 or 4 at first in southeast, decreasing 4 to 6 later. Rough or very rough, occasionally moderate at first in far east, becoming mainly moderate later. Occasional sleet and snow at first, snow showers later mainly in south, otherwise mainly fair. Moderate or good, occasionally very poor. Light or moderate icing within 100 miles of greenland to the south of 70 north, with temperatures ms02 to ms05, but locally severe icing until 262100utc in east within 50 miles of greenland near the ice, with temperatures ms06 to ms09.

North Iceland

In area to the north of 70 north

Northerly or northeasterly 3 to 5, increasing 5 or 6 at times. Slight or moderate, occasionally rough later in southeast. Snow showers. Good, occasionally very poor. Light to moderate icing from 261500utc, with temperatures between ms02 and ms05, but locally severe icing from 262200utc in north within 50 miles of ice edge, with temperatures ms06 to ms09.

In area to the south of 70 north

Cyclonic 4 to 6, increasing 7 to severe gale 9 in east, becoming northerly or northeasterly. Moderate or rough, becoming rough or very rough for a time in east. Rain for a time in southeast, but sleet or snow at times elsewhere, snow showers later. Moderate or good, occasionally poor in southeast and very poor elsewhere. Light or moderate icing at times in western and central areas until 270400utc between 68 north and 70 north, with temperatures ms02 to ms05.

Norwegian Basin

Southwesterly 6 to gale 8, increasing gale 8 or severe gale 9 for a time in east, veering northwesterly 4 to 6, then becoming cyclonic later. Moderate or rough, becoming rough or very rough. Rain at times, becoming mainly fair later in north. Moderate or good, occasionally poor.

Outlook for following 24 hours

Violent storm force winds expected in East Northern Section and East Central Section. Storm force winds expected in Rockall, Bailey and Southeast Iceland. Severe gales expected in Shannon, Faeroes, West Northern Section, West Central Section, north Iceland and Norwegian Basin.

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

Storm warnings

Storm warnings, issued by the Met Office, on behalf of the Maritime and Coastguard Agency.

East Northern Section, East Central Section and West Central Section.

Issued:

At 260000UTC, developing low 46 north 41 west 996 expected 55 north 29 west 967 by 270000UTC. Winds will reach storm force 10 at times between 100 and 300 miles from the centre in the southern semicircle from 260600UTC. Westerly winds occasionally reaching violent storm force 11 between 100 and 150 miles from the centre in the southern quadrant from 240400UTC.