Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 190000UTC, low 59 north 44 west 1010 expected 64 north 39 west 991 by 200000UTC. Low 43 north 47 west 1004 expected 46 north 38 west 999 by same time. Low 47 north 53 west 996 expected 53 north 38 west 997 by that time. Low 62 north 01 east 1000 expected 58 north 04 east 1013 by 200000UTC. High 51 north 18 west 1029 expected 53 north 11 west 1029 by same time.

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Northwest veering east or northeast later, 2 to 4.
Sea state
Moderate, occasionally slight later.
Weather
Fair.
Visibility
Good.

Shannon

Wind
Northwest 3 to 5, becoming variable 2 to 4.
Sea state
Slight or moderate.
Weather
Showers, fair later.
Visibility
Good.

Rockall

Wind
Northwest 3 to 5, becoming variable 2 to 4.
Sea state
Slight or moderate, but occasionally rough at first.
Weather
Showers, fair later.
Visibility
Good.

Bailey

Wind
Northwest backing southwest later, 3 to 5, becoming variable 2 to 4 for a time.
Sea state
Rough becoming moderate.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Northerly 5 to 7 becoming variable 2 to 4, then south 3 to 5 later.
Sea state
Moderate or rough, occasionally very rough at first in far east.
Weather
Showers.
Visibility
Good.

Southeast Iceland

Wind
Cyclonic becoming southwest later, 3 to 5.
Sea state
Moderate occasionally rough at first in far southeast.
Weather
Wintry showers.
Visibility
Good, occasionally poor.

East Northern Section

Wind
Variable 2 to 4 at first in east.
Sea state
Otherwise southerly or southwesterly 4 to 6, occasionally 7 in far west later.
Weather
Moderate, becoming moderate or rough later in west.
Visibility
Mainly fair but occasional rain in north. Good, but occasionally moderate in north.

West Northern Section

In north

Wind
Cyclonic 4 to 6, but 7 or gale 8 in far northwest and occasionally 7 later in far southeast.
Sea state
Moderate becoming moderate or rough.
Weather
Occasional rain, but sleet or snow in the far northwest.
Visibility
Moderate or poor occasionally very poor in far northwest. Light to moderate icing in far northwest.

In south

Wind
Southerly or southwesterly 4 or 5, occasionally 6 later, becoming cyclonic 5 to 7 later.
Sea state
Moderate becoming moderate or rough.
Weather
Mainly fair in north, fog patches in the south.
Visibility
Moderate, but poor to very poor in south.

East Central Section

Wind
Southerly or southeasterly 4 to 6.
Sea state
But variable 2 to 4 far northeast until later.
Weather
Moderate or rough, occasionally slight in northeast.
Visibility
Mainly fair, but occasional rain later in far west. Good, becoming moderate later in far west.

West Central Section

In east

Wind
Southerly or southeasterly 4 to 6 occasionally 7 later.
Sea state
Moderate or rough, becoming rough later.
Weather
Occasional rain.
Visibility
Good or moderate, occasionally poor later.

In west

Wind
Southerly or southeasterly becoming cyclonic 4 to 6, occasionally 7 later.
Sea state
Moderate or rough becoming rough or very rough later.
Weather
Occasional rain, fog patches in the north.
Visibility
Moderate or good, occasionally poor or very poor in the far north.

Denmark Strait

High seas storm warning
Issued:

In the southwest of the Denmark Strait northeasterly winds will increase occasionally storm force 10 from 192000UTC to 200100UTC.

In north

Wind
Variable 2 or 3, becoming easterly or northeasterly 6 to gale 8 later in south, occasionally severe gale 9 later in far southwest.
Sea state
Slight or moderate.
Weather
Fair then sleet or snow.
Visibility
Good, becoming moderate or poor, occasionally very poor later. Light to moderate icing in west with temperatures of ms 04 to ms 06.

In south

Wind
Variable 2 to 4 becoming cyclonic 5 to 7 but becoming gale 8 to severe gale 9, occasionally storm 10 in southwest until later.
Sea state
Moderate or rough.
Weather
Sleet or snow until later.
Visibility
Poor or very poor, becoming good or moderate later. Light to moderate icing in west, occasionally severe later with temperatures of ms 04 to ms 06.

North Iceland

In north

Wind
Northwesterly 5 to 7, but variable 2 or 3 in southwest, backing southerly or southeasterly 3 or 4 later.
Sea state
Moderate or rough becoming slight or moderate.
Weather
Snow in northeast at first, otherwise fair.
Visibility
Poor to very poor in northeast at first, otherwise good. Light to moderate icing in east with temperatures ms 04 to ms 06, occasionally severe until later with temperatures of ms 07 to ms 09.

In south

Wind
Northwesterly 4 to 6 but variable 2 to 4 in southwest, backing southerly or southeasterly 4 to 6 later.
Sea state
Moderate or rough becoming slight or moderate.
Weather
Fair, sleet or snow later.
Visibility
Good, becoming moderate or poor occasionally very poor later. Light icing at first in far northeast with temperatures of ms 03 to ms 05.

Norwegian Basin

In east

Wind
Cyclonic 3 to 5, becoming northerly or northwesterly 5 to 7, but cyclonic 2 or 3 in far northeast.
Sea state
Moderate or rough becoming very rough for a time in west.
Weather
Fair then rain or sleet.
Visibility
Good, becoming moderate or poor.

In west

Wind
Northerly or northwesterly 6 to gale 8, decreasing 4 to 6 later, becoming variable 2 to 4 far west later.
Sea state
Rough or very rough becoming moderate or rough.
Weather
Rain or sleet then fair.
Visibility
Moderate or poor becoming good.

Outlook for following 24 hours

Gales expected in East Northern Section, West Northern Section and Denmark Strait.

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.