Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 190000UTC, low 58 north 34 west 979 expected 58 north 36 west 997 by 200000UTC. High 46 north 52 west 1032 expected 43 north 42 west 1032 by same time. New low expected 52 north 22 west by that time. at 190000UTC, low 63 north 02 west 1007 expected 58 north 02 east 1021 by 200000UTC. High 50 north 11 west 1028 expected 65 north 10 west 1031 by same time.

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Easterly or southeasterly 3 to 5, occasionally 6 later in west.
Sea state
Mainly moderate.
Weather
Fair.
Visibility
Good.

Shannon

Wind
South or southwest, backing east or southeast, 3 to 5, occasionally 6 later.
Sea state
Moderate, becoming moderate or rough.
Weather
Fair.
Visibility
Good.

Rockall

Wind
South or southwest, backing east or southeast, 3 to 5, occasionally 6 later.
Sea state
Moderate, becoming moderate or rough.
Weather
Fair.
Visibility
Good.

Bailey

Wind
Variable 2 to 4.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good.

Faeroes

Wind
Westerly or northwesterly 4 to 6, occasionally 7 at first and 3 later.
Sea state
Moderate or rough.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Southeast Iceland

Wind
In southeast, westerly or northwesterly 4 to 6, occasionally 7 at first and 3 later. in northwest, variable 2 to 4.
Sea state
Moderate or rough.
Weather
In southeast, rain or showers. in northwest, mainly fair.
Visibility
In southeast, good, occasionally poor. in northwest, good.

East Northern Section

In east

Wind
Southerly or southeasterly 4 to 6, occasionally 7 at first and 3 later.
Sea state
Moderate or rough, becoming rough or very rough.
Weather
Mainly fair.
Visibility
Good.

In west

Wind
Southeasterly 5 to 7, occasionally gale 8 until later, becoming cyclonic in southwest, and decreasing 3 to 5 for a time in southwest.
Sea state
Rough or very rough, occasionally high at first in far west.
Weather
Occasional rain, becoming fair later in north.
Visibility
Moderate or good, occasionally poor until later.

West Northern Section

Wind
Cyclonic 6 to gale 8, occasionally severe gale 9 at first, decreasing 4 to 6, occasionally 7 later.
Sea state
Very rough or high, becoming rough or very rough.
Weather
Rain at times, but occasional snow until later in far northwest, and until later in southwest, then squally wintry showers in south and also later elsewhere, except in far north and northeast.
Visibility
Moderate or good, occasionally poor, but very poor in southwest and far northwest.

East Central Section

Wind
Southerly or southeasterly becoming cyclonic, 5 to 7, increasing gale 8 at times, becoming 3 to 5 later in south.
Sea state
Rough or very rough, but occasionally moderate at first in northeast and until later in southeast.
Weather
Mainly fair in northeast, elsewhere, rain , perhaps thundery at first, then squally wintry showers in southwest.
Visibility
Moderate or good, occasionally poor.

West Central Section

Wind
Westerly or northwesterly 5 to 7, occasionally gale 8 at first in far northwest, decreasing 4 at times later.
Sea state
Very rough, occasionally high until later in northwest, and rough in southeast, becoming rough or very rough later.
Weather
Rain at first in far east, otherwise squally wintry showers.
Visibility
Moderate or good, occasionally poor.

Denmark Strait

High seas storm warning
Issued:

At 190000UTC, low 58 north 34 west 979 expected 58 north 36 west 997 by 200000UTC. Easterly or northeasterly winds are expected to reach storm force 10 at times within 50 miles of the Greenland coast, south of 65 north and west of 35 west until 192100UTC.

Wind
Area south of 55 north and west of 35 west, easterly or northeasterly gale 8 to storm 10, decreasing 6 to gale 8 later.
Sea state
Rough or very rough, occasionally moderate in west.
Weather
Sleet, snow and freezing rain.
Visibility
Moderate to very poor.

In northeast

Wind
Southerly or southwesterly 3 to 5, occasionally 6 for a time in north.
Sea state
Slight or moderate.
Weather
Fog patches at first near the ice edge.
Visibility
Good, occasionally very poor at first near the ice edge.

In rest of area

Wind
Cyclonic, mainly easterly or southeasterly 5 to 7, decreasing 3 to 5 later.
Sea state
Rough or very rough, occasionally moderate in east.
Weather
Rain or freezing rain at times in southwest, sleet and snow near the ice edge, mainly fair in east.
Visibility
Moderate or good, occasionally very poor in west.

North Iceland

In north

Wind
Variable 2 to 4, becoming westerly or southwesterly 4 to 6.
Sea state
Moderate, occasionally rough later.
Weather
Rain or freezing rain and drizzle, and fog banks at first, mainly fair later.
Visibility
Moderate to very poor, becoming moderate or good later.

In south

Wind
Westerly or northwesterly 3 to 5, but 6 or 7 at first in southeast, becoming variable 2 to 4 in west and later in east.
Sea state
Moderate or rough, becoming slight or moderate later.
Weather
Rain or drizzle at first in southeast, otherwise mainly fair.
Visibility
Moderate or good, occasionally poor at first.

Norwegian Basin

Wind
Cyclonic 3 to 5, occasionally 6 at first in west, decreasing 3 or less later.
Sea state
Moderate, occasionally rough in west.
Weather
Mainly fair in far east, otherwise occasional rain or drizzle with fog patches.
Visibility
Moderate or good, occasionally very poor except in far east.

Outlook for following 24 hours

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

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.