Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 141200UTC, low 58 north 25 west 971 expected 58 north 28 west with little change. New low expected 60 north 18 west 977 by same time. Lows 64 north 09 west 999 losing its identity

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Westerly or southwesterly 6 to gale 8.
Sea state
Rough or very rough, occasionally high later in northwest.
Weather
Rain.
Visibility
Good, occasionally poor.

Shannon

Wind
Westerly or southwesterly 6 to gale 8.
Sea state
Very rough, occasionally rough, becoming very rough or high later.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Rockall

Wind
In southwest, westerly or southwesterly 6 to gale 8. in northeast, southeasterly becoming cyclonic, 7 to severe gale 9, decreasing 4 to 6.
Sea state
In southwest, very rough, becoming very rough or high later. in northeast, very rough, occasionally high at first.
Weather
In southwest, thundery showers. in northeast, rain then thundery showers.
Visibility
Good, occasionally poor.

Bailey

Wind
Southeasterly becoming cyclonic, 7 to severe gale 9.
Sea state
Rough or very rough, becoming very rough or high.
Weather
Rain then thundery showers.
Visibility
Good, occasionally poor.

Faeroes

Wind
Cyclonic 5 to 7, perhaps gale 8 later.
Sea state
Moderate or rough becoming rough or very rough.
Weather
Sleet.
Visibility
Good, occasionally poor.

Southeast Iceland

Wind
Cyclonic 6 to gale 8, becoming northeasterly 7 to severe gale 9.
Sea state
Rough or very rough becoming very rough or high.
Weather
Snow.
Visibility
Poor or very poor. moderate icing.

East Northern Section

High seas storm warning
Issued:

Northeasterly winds will reach storm force 10 or violent storm force 11 in the southwest of Denmark Strait until 151000UTC and in the northwest of West Northern Section until 150800UTC. At 141200UTC, low 58 north 25 west 971 expected 58 north 28 west with little change. Winds will reach storm force 10 or violent storm 11 in the north quadrant of the low within 300 miles from the centre until 150700UTC. New low expected 60 north 18 west 977 by same time. Winds are expected to reach storm force 10 in northwest quadrant of the low within 100 miles from the centre after 150800UTC. Finally, southerly winds will storm force 10 in the southeast of Norwegian Basin, within 100 miles from the Norwegian coast after 151700UTC.

Wind
Cyclonic 7 to severe gale 9, but gale 8 to storm 10 north of the low centres, occasionally violent storm 11 at first.
Sea state
Rough at first in northeast, otherwise very rough or high, occasionally very high.
Weather
Rain or showers, wintry in north and thundery in south.
Visibility
Moderate or poor. Occasional light icing near Icelandic coast.

West Northern Section

High seas storm warning
Issued:

Northeasterly winds will reach storm force 10 or violent storm force 11 in the southwest of Denmark Strait until 151000UTC and in the northwest of West Northern Section until 150800UTC. At 141200UTC, low 58 north 25 west 971 expected 58 north 28 west with little change. Winds will reach storm force 10 or violent storm 11 in the north quadrant of the low within 300 miles from the centre until 150700UTC. New low expected 60 north 18 west 977 by same time. Winds are expected to reach storm force 10 in northwest quadrant of the low within 100 miles from the centre after 150800UTC. Finally, southerly winds will storm force 10 in the southeast of Norwegian Basin, within 100 miles from the Norwegian coast after 151700UTC.

Wind
Cyclonic 7 to severe gale 9, but severe gale 9 to violent storm 11 at first in northwest.
Sea state
Very rough or high, occasionally rough at first in south and very high in east.
Weather
Rain or showers, but sleet or snow in northwest.
Visibility
Moderate poor, occasionally very poor in northwest. Light to moderate icing in northwest, occasionally severe at first in far northwest.

East Central Section

Wind
Southwesterly veering westerly, 6 to gale 8, increasing severe gale 9 later in northwest.
Sea state
Very rough or high.
Weather
Occasional rain in south, thundery showers in north.
Visibility
Good, occasionally poor.

West Central Section

Wind
Southwesterly veering westerly or northwesterly, 6 to gale 8, increasing severe gale 9 later in northeast, veering northeasterly 3 to 5 in south.
Sea state
Very rough or high, becoming rough later in southwest.
Weather
Squally showers, but occasional rain in south.
Visibility
Good, occasionally poor.

Denmark Strait

High seas storm warning
Issued:

Northeasterly winds will reach storm force 10 or violent storm force 11 in the southwest of Denmark Strait until 151000UTC and in the northwest of West Northern Section until 150800UTC. At 141200UTC, low 58 north 25 west 971 expected 58 north 28 west with little change. Winds will reach storm force 10 or violent storm 11 in the north quadrant of the low within 300 miles from the centre until 150700UTC. New low expected 60 north 18 west 977 by same time. Winds are expected to reach storm force 10 in northwest quadrant of the low within 100 miles from the centre after 150800UTC. Finally, southerly winds will storm force 10 in the southeast of Norwegian Basin, within 100 miles from the Norwegian coast after 151700UTC.

In southwest of area

Wind
Northeasterly severe gale 9 to violent storm 11, decreasing 5 to 7 later.
Sea state
Very rough or high becoming rough or very rough.
Weather
Snow at times.
Visibility
Poor or very poor. Severe to very severe icing with temperatures ms06 to ms09, becoming light to moderate with temperatures ms05 to ms08.

In rest of area

Wind
Easterly 7 to severe gale 9, backing northeasterly 4 to 6.
Sea state
Moderate or rough, occasionally very rough in southwest.
Weather
Mainly fair.
Visibility
Good. Light to moderate icing in north with temperatures ms04 to ms07, becoming severe to very severe with temperatures ms10 to ms13.

North Iceland

Wind
Cyclonic, mainly northeasterly, 5 to 7, occasionally gale 8 in southeast.
Sea state
Moderate or rough, occasionally very rough in southeast and slight in northwest.
Weather
Occasional snow or snow showers, but mainly fair in southwest.
Visibility
Moderate or good, occasionally very poor. Moderate to severe icing in northwest with temperatures ms09 to ms12, becoming very severe near the ice edge with temperatures around ms14. Occasional light icing in southeast with temperatures ms02 to ms4.

Norwegian Basin

High seas storm warning
Issued:

Northeasterly winds will reach storm force 10 or violent storm force 11 in the southwest of Denmark Strait until 151000UTC and in the northwest of West Northern Section until 150800UTC. At 141200UTC, low 58 north 25 west 971 expected 58 north 28 west with little change. Winds will reach storm force 10 or violent storm 11 in the north quadrant of the low within 300 miles from the centre until 150700UTC. New low expected 60 north 18 west 977 by same time. Winds are expected to reach storm force 10 in northwest quadrant of the low within 100 miles from the centre after 150800UTC. Finally, southerly winds will storm force 10 in the southeast of Norwegian Basin, within 100 miles from the Norwegian coast after 151700UTC.

Wind
Cyclonic, mainly southerly, 5 to 7, increasing gale 8 to storm 10 in east.
Sea state
Moderate or rough, becoming rough or very rough, occasionally high.
Weather
Occasional rain or sleet and snow showers.
Visibility
Moderate or good, occasionally very poor.

Outlook for following 24 hours

Storms are expected in East Northern Section and Norwegian Basin, with severe gales expected in Faeroes, Southeast Iceland, West Northern Section, East Central Section, West Central Section and north Iceland. Gales are expected in all other areas.

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

The 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.