Met Office weather
Extended outlook
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Low 983 55N 025W will move northeast as a filling feature crossing eastern Iceland Wednesday night before moving to west of Jan Mayen by Thursday evening. Low 992 52N 035W and low 994 45N 035W develop during Tuesday but amalgamate as low 991 48N 031W Tuesday night. This deepens 977 53N 032W while remaining almost stationary during Thursday. A ridge of high pressure extends between high 1014 southern Greenland, high 1023 south of Svalbard, high 1015 Iberia, high 1026 southwest of the Azores and high 1028 35N 067W. The ridge between Greenland and Svalbard will move north as the high over western Europe strengthens towards Thursday. The ridge to the south of the Azores will weaken for a time as a trough extends south Tuesday before moving steadily east Wednesday and Thursday. Strong winds spread southeast to all areas from early Tuesday, reaching near gale in the north before easing Wednesday morning. No gales are expected throughout this period
Niton
Low 983 55N 025W will move northeast as a filling feature crossing eastern Iceland Wednesday night before moving to west of Jan Mayen by Thursday evening. Low 992 52N 035W and low 994 45N 035W develop during Tuesday but amalgamate as low 991 48N 031W Tuesday night. This deepens 977 53N 032W while remaining almost stationary during Thursday. A ridge of high pressure extends between high 1014 southern Greenland, high 1023 south of Svalbard, high 1015 Iberia, high 1026 southwest of the Azores and high 1028 35N 067W. The ridge between Greenland and Svalbard will move north as the high over western Europe strengthens towards Thursday. The ridge to the south of the Azores will weaken for a time as a trough extends south Tuesday before moving steadily east Wednesday and Thursday. Strong winds push east to all except Trafalgar most days. No gales are expected throughout this period
Portpatrick
Low 983 55N 025W will move northeast as a filling feature crossing eastern Iceland Wednesday night before moving to west of Jan Mayen by Thursday evening. Low 992 52N 035W and low 994 45N 035W develop during Tuesday but amalgamate as low 991 48N 031W Tuesday night. This deepens 977 53N 032W while remaining almost stationary during Thursday. A ridge of high pressure extends between high 1014 southern Greenland, high 1023 south of Svalbard, high 1015 Iberia, high 1026 southwest of the Azores and high 1028 35N 067W. The ridge between Greenland and Svalbard will move north as the high over western Europe strengthens towards Thursday. The ridge to the south of the Azores will weaken for a time as a trough extends south Tuesday before moving steadily east Wednesday and Thursday. Near gales Rockall Monday night spread northeast through Tuesday and clear northeast Wednesday. No gales are expected throughout this period
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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