Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
High 1030 east of the Azores extends a ridge northeast to a high 1029 over the southern UK Friday evening. The high across the southern UK will move into the northern Baltic by midday on Sunday while the high to the south moves towards the Canaries where it weakens during Sunday. Low 954 65N 029W extends a trough to west of the Azores Thursday evening. The low moves into the Denmark Channel as a further low 1009 develops on the front in Rockall Saturday night. This low moves to southwest of Ireland Sunday night before filling to the west of Ireland during Monday. High 1037 45N 058W moves east to be 1034 over the Azores on Monday. During this time low 989 58N 060W tracks east, passing just south of Greenland Sunday to reach 954 64N 039W by late Monday. Gales affect Fair Isle Friday night into Saturday morning. No further gales are expected this period
Niton
High 1030 east of the Azores extends a ridge northeast to a high 1029 over the southern UK Friday evening. The high across the southern UK will move into the northern Baltic by midday on Sunday while the high to the south moves towards the Canaries where it weakens during Sunday. Low 954 65N 029W extends a trough to west of the Azores Thursday evening. The low moves into the Denmark Channel as a further low 1009 develops on the front in Rockall Saturday night. This low moves to southwest of Ireland Sunday night before filling to the west of Ireland during Monday. High 1037 45N 058W moves east to be 1034 over the Azores on Monday. During this time low 989 58N 060W tracks east, passing just south of Greenland Sunday to reach 954 64N 039W by late Monday. Gales briefly affect southeast Fitzroy and northwest Shannon overnight into Saturday. No further gales are expected this period
Portpatrick
High 1030 east of the Azores extends a ridge northeast to a high 1029 over the southern UK Friday evening. The high across the southern UK will move into the northern Baltic by midday on Sunday while the high to the south moves towards the Canaries where it weakens during Sunday. Low 954 65N 029W extends a trough to west of the Azores Thursday evening. The low moves into the Denmark Channel as a further low 1009 develops on the front in Rockall Saturday night. This low moves to southwest of Ireland Sunday night before filling to the west of Ireland during Monday. High 1037 45N 058W moves east to be 1034 over the Azores on Monday. During this time low 989 58N 060W tracks east, passing just south of Greenland Sunday to reach 954 64N 039W by late Monday. Gales reach all except Lundy, Fastnet and Irish Sea Friday night, clearing north Saturday. Further gales Southeast Iceland later Monday
The extended outlook information
The extended outlooks are issued once a day, at 2300 GMT and cover the next 3 to 5 days.
For the extended 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.
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