High seas forecast

Issued by the Met Office at

For the period until

Storm warnings

At 211200UTC, low 46 north 38 west 1008 expected 49 north 15 west 980 by 221200UTC. Winds will reach storm force 10 within 150 miles of the centre in the southwestern semicircle after 220400UTC, and also violent storm force 11 within 100 miles of the centre in the southwest quadrant after 220700UTC. In addition, northeasterly winds will reach storm force 10 at times until 220200UTC to the west of 34 west in Denmark Strait and in the far northwest of west northern section. Finally, northerly or northeasterly winds will reach storm force 10 or violent storm force 11 after 220700UTC in that part of Denmark Strait that lies both to the east of 24 west and between 68 north and 71 north

General synopsis

At 211200UTC, low 46 north 38 west 1008 expected 49 north 15 west 980 by 221200UTC. New lows expected 67 north 20 west 987 and 59 north 01 east 987 by same time. Low 64 north 30 west 987 expected 61 north 32 west 983 by that time. New high expected 46 north 34 west 1029 by 221200UTC. Lows 62 north 33 west 987 and 61 north 11 west 993 both losing their identities

Area forecasts for the next 24 hours

Sole

Westerly backing southwesterly 5 to 7, occasionally gale 8 at first, becoming cyclonic severe gale 9 to violent storm 11 later. Rough or very rough, becoming high or very high later in west. Rain or squally showers. Moderate or poor.

Shannon

West 6 to gale 8 backing southwest 3 or 4, becoming cyclonic gale 8 to storm 10 later. Rough or very rough. Squally showers. Good, occasionally poor.

Rockall

Northwesterly 4 to 6 becoming cyclonic 3 to 5. Rough. Showers. Moderate or good.

Bailey

Northwesterly 4 to 6 becoming cyclonic 3 to 5. Rough. Showers. Moderate or good.

Faeroes

Cyclonic 4 to 6. Moderate or rough. Rain then showers. Good, occasionally poor.

Southeast Iceland

Cyclonic 4 to 6. Moderate or rough. Rain then showers. Good, occasionally poor.

East Northern Section

In northern half of the area

Cyclonic 4 to 6. Moderate or rough, becoming rough or very rough in west. Rain, sleet or showers, wintry at times. Good, occasionally poor.

In southern half of the area

Westerly or southwesterly 5 to 7, occasionally 4 in east, increasing gale 8 at times later in west. Rough or very rough, becoming high later in west. Rain or squally wintry showers. Moderate or good, occasionally very poor.

West Northern Section

In northern half of the area

Cyclonic, 4 to 6 at first in south and east, otherwise 7 to severe gale 9, occasionally storm 10 at first in far northwest, then decreasing 4 to 6 later in all areas. Very rough or high at first in northwest, otherwise rough or very rough. Rain, sleet or squally wintry showers, with snow at times in far northwest. Moderate or poor, occasionally very poor in northwest and good in southeast.

In southern half of the area

Westerly 6 to gale 8, occasionally severe gale 9 in north. Very rough or high. Squally wintry showers, then rain later in west. Moderate or poor, occasionally very poor at first.

East Central Section

In area to the north of 52 north

Westerly or northwesterly 4 to 6, increasing 6 to gale 8 later. Rough or very rough. Showers, squally and wintry at times. Moderate or good, occasionally poor.

In area to the south of 52 north

Westerly or southwesterly 4 to 6 becoming cyclonic gale 8 to storm 10, occasionally violent storm 11 in east, becoming northwesterly 6 to gale 8 later. Rough or very rough becoming very rough or high, becoming rough again later in west. Rain, thundery at times, then showers. Moderate or poor, occasionally good.

West Central Section

In southeast

Cyclonic 7 to severe gale 9 becoming northwesterly 5 or 6, backing westerly 3 to 5 later. Rough or very rough. Rain, thundery at times, then showers, becoming fair later. Poor, becoming moderate or good.

In southwest

Northwesterly 5 or 6 becoming variable 2 to 4, then southerly or southwesterly 4 or 5 later. Moderate or rough. Showers at first. Good, occasionally moderate at first.

In north

Westerly or northwesterly, backing southwesterly later in west, 5 to 7, occasionally gale 8 in northeast. Rough or very rough. Squally showers, wintry at times. Moderate or good, occasionally poor.

Denmark Strait

In western half of the area

Northeasterly 7 to severe gale 9, occasionally storm 10 at first to the west of 34 west, decreasing 4 to 6 later, then becoming variable 2 to 4 later near greenland. Very rough or high becoming rough or very rough. Sleet or snow at times, but becoming fair later in far west. Moderate or good, occasionally very poor. Occasional light icing at first near the coast, with temperatures ms02 or ms03.

In eastern half of the area

Northerly or northeasterly 4 to 6 increasing 7 to severe gale 9, then increasing severe gale 9 to violent storm 11 in east between 68 north and 71 north. Moderate or rough becoming very rough or high. Sleet or snow at times, turning to rain or sleet in southeast. Moderate to very poor, occasionally good. Light or moderate icing to the north of 67 north, with temperatures ms02 to ms05, but severe icing developing later to the north of 69 north, with temperatures ms05 to ms07.

North Iceland

In northwestern half of the area

Northerly or northeasterly 4 to 6 increasing 7 to severe gale 9. Moderate or rough becoming rough or very rough. Mainly fair, then snow. Good, becoming moderate to very poor. Light or moderate icing, with temperatures ms02 to ms05, but severe or very severe icing developing in far northwest, with temperatures ms06 to ms09.

In southeastern half of the area

Cyclonic mainly southeasterly 4 to 6. Moderate or rough. Rain at times, with fog patches, but becoming fair later in south. Moderate to very poor, becoming good later in south.

Norwegian Basin

In area to the west of 05 east

Southeasterly 4 to 6, increasing 6 to gale 8 for a time at first, becoming cyclonic 6 to gale 8 later, occasionally severe gale 9 later in southeast. Moderate or rough, occasionally very rough in south. Rain at times. Moderate or good, occasionally poor.

In area to the east of 05 east

Southerly or southeasterly 4 to 6, occasionally 7 later. Moderate or rough. Showers. Good, occasionally moderate.

Outlook for following 24 hours

Hurricane force winds expected in Sole. Violent storm force winds expected in Shannon and north Iceland. Storm force winds expected in Denmark Strait. Severe gales expected in Norwegian Basin. Gales expected in both northern sections and both central sections, possibly severe in the central sections. Risk of gales later in Bailey and Southeast Iceland.

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.

Sole, Shannon, West Northern Section, East Central Section, and Denmark Strait.

Issued:

At 211200UTC, low 46 north 38 west 1008 expected 49 north 15 west 980 by 221200UTC. Winds will reach storm force 10 within 150 miles of the centre in the southwestern semicircle after 220400UTC, and also violent storm force 11 within 100 miles of the centre in the southwest quadrant after 220700UTC. In addition, northeasterly winds will reach storm force 10 at times until 220200UTC to the west of 34 west in Denmark Strait and in the far northwest of West Northern Section. Finally, northerly or northeasterly winds will reach storm force 10 or violent storm force 11 after 220700UTC in that part of Denmark Strait that lies both to the east of 24 west and between 68 north and 71 north.