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

Extended Outlook

Extended outlook forecast

Issued: 2136 on Fri 19 Dec 2014 UTC

Issued by the Met Office, on behalf of the Maritime and Coastguard Agency

Valid from 2100 on Sun 21 Dec 2014 UTC until 2100 on Wed 24 Dec 2014 UTC

Cullercoats

Low 987 centred Viking Sunday evening will move eastwards into Baltic by midday Monday deepening to 976. Shallow low 977 will form in Fair Isle midday Monday but fill during the day. Low 973 south of Iceland Sunday evening will remain slow-moving through Monday and Tuesday but move southeastwards into Bailey by midday Wednesday filing 1002 and then Fair Isle by the end of the day. Shallow low 1007 will form on waving cold front west Shannon midday Monday and run northeastwards into Viking by midday Tuesday with little change. Shallow low 998 will form 61 north 7 east by midday Wednesday and remain slow-moving. Strong west to southwesterly winds will prevail across much of the region during the period, reaching gale-force at first in Dogger, German Bight, Humber and Thames. By midday Monday winds will reach gale-force westerly in Viking and Fair Isle for a time. Winds remain strong through Tuesday, veering northwesterly and then decreasing during Wedensday. Visibility will be generally good but occasionally moderate at times in rain or showers

Niton

Shallow low 1007 will form on waving cold front west Shannon midday Monday and run northeastwards into Viking by midday Tuesday with little change. Large anticyclone 1035 will be centred Biscay Sunday evening and remain slow-moving through Monday and Tuesday. During Wednesday the anticyclone will edge further eastwards to become centred over Iberia declining slightly 1030. Strong southwesterly winds will prevail at first in Lundy, Fastnet, Irish Sea and Shannon, extending into Thames, Dover and Wight by midday Monday. Winds ease in Lundy. Fastnet, Irish Sea and Shannon by midday Tuesday but remain strong in Thames, Dover and Wight until the end of the day. Winds elsewhere remain generally light with light winds in all parts during Wednesday

Portpatrick

Shallow low 977 will form in Fair Isle midday Monday but fill during the day. Low 973 south of Iceland Sunday evening will remain slow-moving through Monday and Tuesday but move southeastwards into Bailey by midday Wednesday filing 1002 and then Fair Isle by the end of the day with little change. Shallow low 1007 will form on waving cold front west Shannon midday Monday and run northeastwards into Viking by midday Tuesday with little change. Shallow low 998 will form 61 north 7 east by midday Wednesday and remain slow-moving. New low 1012 will form by the end of Wednesday to the south of Iceland. Strong west to southwesterly winds will continue across much of the region during the periods reaching gale-force during Monday in Rockall, Malin, Hebrides, Bailey, Fair Isle, Faeroes and Southeast Iceland. Gales ease by the end of Monday but stay strong westerly south of Bailey and Hebrides during Tuesday and Wednesday

Extended outlook overview

The extended outlooks are issued once a day, at 2300 GMT and cover the next 3 to 5 days.

For the extend outlooks the waters surrounding the British Isles are divided into three areas; Cullercoats, Portpatrick and Niton. These three areas reflect the coverage areas of the UK's Navtex transmitters, which overlap in some areas.

The extended outlook forecast contains details of the likelihood of gales or storms, a general synopsis and a general forecast for the area of coverage of each Navtex transmitter.

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.