Use my current location crosshair
yellow Warnings have been issued for the United Kingdom

High Seas forecast

High seas forecasts for the next 24 hours

Issued: 2000 on Tue 03 Mar 2015 UTC

The high seas forecast, issued by the Met Office, on behalf of the Maritime and Coastguard Agency

Storm warnings

At 031200UTC, low 52 north 51 west 956 expected 59 north 39 west 956 by 041200UTC. Winds will reach storm force 10 or violent storm force 11 between 50 and 300 miles of the centre in the southern and southeastern quadrants. Frontal trough 52 north 50 west to 52 north 43 west to 48 north 42 west to 40 north 47 west, expected 63 north 40 west to 64 north 35 west to 62 north 28 west to 60 north 24 west to 54 north 25 west to 45 north 30 west by same time. Winds will reach storm force 10 at times up to 150 miles to the east or north of the frontal trough, in east central section and West Central Section until 040900UTC, in West Northern Section throughout, in the northwest of East Northern Section from 040600UTC until 041700UTC, and in denmark strait after 040900UTC

General synopsis

At 031200UTC, low 52 north 51 west 956 expected 59 north 39 west 956 by 041200UTC. Frontal trough 52 north 50 west to 52 north 43 west to 48 north 42 west to 40 north 47 west expected 63 north 40 west to 64 north 35 west to 62 north 28 west to 60 north 24 west to 54 north 25 west to 45 north 30 west by same time. Low 59 north 10 west 985 expected 56 north 07 east 1010 by that time. at 031200UTC, low 75 north 06 west 973 expected 76 north 08 west 993 by 041200UTC. High 43 north 22 west 1034 expected 46 north 12 west 1042 by same time. Lows 64 north 09 west 987 and 63 north 39 west 991 both losing their identities

Sole

Northwesterly 5 to 7 becoming variable 4, then southwesterly 5 or 6 in far west later. Very rough or high, becoming rough. Showers. Good.

Shannon

West backing southwest 6 to gale 8. High, becoming rough or very rough. Showers. Good.

Rockall

West backing southwest 7 to severe gale 9. High or very high, becoming rough or very rough. Showers, rain later. Good, becoming moderate later.

Bailey

Northwest backing south 7 to severe gale 9. Very rough or high, becoming rough or very rough. Showers, rain later. Moderate or good.

Faeroes

Cyclonic or northwest, backing southwest, 5 to 7, perhaps gale 8 later. Rough or very rough. Wintry showers, rain later. Moderate or good.

Southeast Iceland

Northwesterly 5 to 7 backing southeasterly 6 to gale 8. Rough or very rough. Wintry showers, rain later. Moderate or good, occasionally poor.

East Northern Section

In northwest

Southwesterly 4 backing southeasterly gale 8 to storm 10, veering southerly later. Moderate or rough, becoming high or very high. Squally wintry showers, rain for a time. Mainly good, becoming moderate or poor.

In northeast

Northwesterly 5 to 7 backing southeasterly 7 to severe gale 9, veering southwesterly later. Rough or very rough, becoming high or very high. Wintry showers then rain. Good becoming moderate or poor.

In southeast

Northwesterly 6 to gale 8 backing southerly or southwesterly 7 to severe gale 9. Very rough or high, becoming rough or very rough, then high or very high later. Wintry showers then rain. Good, becoming moderate or poor.

In southwest

Westerly in east at first otherwise southerly, 5 to 7 increasing 7 to severe gale 9, then veering southwesterly. Rough or very rough, becoming very high. Fair then rain, squally showers later. Good, becoming moderate occasionally poor.

West Northern Section

In north

Southerly 5 backing easterly gale 8 to storm 10, veering southerly 7 to severe gale 9 in east and becoming cyclonic 6 to gale 8 in west. Moderate or rough, becoming very rough or high, then very high in southeast later. Wintry showers, then rain, snow or squally showers. Good, becoming moderate or poor, occasionally very poor. Moderate to severe icing developing near ice edge.

In south

Southerly or southeasterly veering southwesterly, severe gale 9 to violent storm 11. Rough or very rough becoming high or very high, and very high or phenomenal for a time in southeast. Rain or snow then squally wintry showers. Moderate or poor, occasionally very poor.

East Central Section

In east

Variable 4 in south at first, otherwise westerly backing southwesterly 5 to 7, increasing gale 8 or severe gale 9 in north. Very rough or high, becoming moderate or rough in far southeast. Showers in north, then rain in far northwest. Good, becoming moderate or poor in far northwest later.

In west

Southerly or southwesterly gale 8 to storm 10, but 5 to 7 in east at first, and decreasing 5 to 7 in northwest except the far northwest. Very rough becoming high except in far south, and very high in far northwest. Fair in southeast, and in west at first, otherwise rain or drizzle, then showers in far northwest later. Moderate or good, becoming poor at times in rain.

West Central Section

Southerly or southwesterly gale 8 to storm 10, occasionally violent storm 11 in far northwest at first, then decreasing 5 to 7 in south and 7 or gale 8 in north. Very rough in east at first and far south later, otherwise high or very high, and phenomenal for a time in far northwest. Rain in central and eastern areas becoming confined to far southeast, otherwise squally wintry showers. Moderate or poor in rain and in far north, otherwise moderate or good.

Denmark Strait

Cyclonic 4 or 5 becoming easterly or northeasterly gale 8 to storm 10, then veering southeasterly 5 to 7 in south. Moderate or rough becoming rough or very rough. Wintry showers, then rain or snow. Mainly good, becoming poor or very poor. Moderate to severe icing developing near ice edge with temperatures ms02 to ms05.

North Iceland

In north

Cyclonic in far east at first otherwise mainly westerly or northwesterly, 5 to 7 decreasing 4 or 5, then becoming variable 4 except in far northeast, and southeasterly 5 or 6 in far southwest later. Rough or very rough, becoming slight or moderate. Snow or snow showers, becoming mainly fair. Good, becoming poor or very poor in snow. Moderate icing at first in west with temperatures ms02 to ms05.

In south

Cyclonic mainly northwesterly 5 to 7, occasionally gale 8, becoming variable 4 then southeasterly 4 or 5, increasing 7 to severe gale 9 except in far northeast. Rough or very rough, becoming moderate in far northeast. Snow or wintry showers then fair, rain or snow in far south later. Good, occasionally poor at first, becoming moderate or poor in far south later.

Norwegian Basin

Westerly or southwesterly 4 or 5 increasing 5 to 7, backing southerly or southeasterly in far west later. Rough, occasionally very rough in west. Squally wintry showers, then fair in west. Good, occasionally poor at first.

Outlook for following 24 hours

From Wed 04 Mar 2015

Storms expected in East Northern Section, West Northern Section and West Central Section, with gales or severe gales in all other areas except Sole.

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

High Seas overview

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 containg forecast wind direction and force, weather and visibility for the next 24 hours with an outlook for the following 24 hours.

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.