Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Low 997 Fitzroy moves southeast and over Iberia by midday on Monday. Low 1023 develops 65N 029W early Sunday before passing east across southern parts of Iceland before turning southeast and moving to northern Scotland by midday on Tuesday and the central North Sea by Tuesday evening. High 1026 60N 028W extends a ridge across the northern UK and into Lithuania Saturday evening. This ridge will weaken as it sinks south across the UK during Sunday. This high will follow south-eastward to just west of Shannon by midday on Tuesday when the ridge extends east over the Channel. High 31N 028W extends a weak ridge north while moving slowly east into Monday. High declines south as a shallow low 1022 develops near the Azores before tracking southeast Tuesday. Near gales spread south over eastern parts from Sunday evening, clearing the German Bight Monday morning. No gales are expected throughout this period
Niton
Low 997 Fitzroy moves southeast and over Iberia by midday on Monday. Low 1023 develops 65N 029W early Sunday before passing east across southern parts of Iceland before turning southeast and moving to northern Scotland by midday on Tuesday and the central North Sea by Tuesday evening. High 1026 60N 028W extends a ridge across the northern UK and into Lithuania Saturday evening. This ridge will weaken as it sinks south across the UK during Sunday. This high will follow south-eastward to just west of Shannon by midday on Tuesday when the ridge extends east over the Channel. High 31N 028W extends a weak ridge north while moving slowly east into Monday. High declines south as a shallow low 1022 develops near the Azores before tracking southeast Tuesday. Near gales spread to southwest Fitzroy for a time Sunday. No gales are expected throughout this period
Portpatrick
Low 997 Fitzroy moves southeast and over Iberia by midday on Monday. Low 1023 develops 65N 029W early Sunday before passing east across southern parts of Iceland before turning southeast and moving to northern Scotland by midday on Tuesday and the central North Sea by Tuesday evening. High 1026 60N 028W extends a ridge across the northern UK and into Lithuania Saturday evening. This ridge will weaken as it sinks south across the UK during Sunday. This high will follow south-eastward to just west of Shannon by midday on Tuesday when the ridge extends east over the Channel. High 31N 028W extends a weak ridge north while moving slowly east into Monday. High declines south as a shallow low 1022 develops near the Azores before tracking southeast Tuesday. Near gales build Shannon, Rockall, Hebrides and Bailey late Tuesday. 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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