Met Office

Inshore waters forecast

Issued by the Met Office at 0001 UTC on Tuesday 12 December 2017

Inshore Waters Forecast to 12 miles offshore
for the period 0000 UTC Tuesday 12 December to 0000 UTC Wednesday 13 December 2017

General situation

A collapsing ridge of high pressure will move eastwards across the United Kingdom during Tuesday, before a very strong and unsettled westerly airflow becomes established.

Cape Wrath to Rattray Head including Orkney - Strong wind warning

24 hour forecast: Cyclonic, mainly northerly or northwesterly 5 or 6, becoming variable 3 or 4, then southerly 5 to 7, perhaps gale 8 later in north, then veering westerly later. Slight or moderate in east, moderate or rough in north. Showers, rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: West or southwest 5 to 7. Slight or moderate in east, moderate or rough, becoming rough or very rough in north. Showers, wintry later. Good, occasionally moderate in north.


Rattray Head to Berwick upon Tweed - Strong wind warning

24 hour forecast: Northwesterly backing westerly 4 or 5, occasionally 6 in north, then backing southwesterly 5 to 7 later. Slight or moderate. Showers then fair, rain for a time later. Mainly good.

Outlook for the following 24 hours: West or southwest 5 to 7. Slight or moderate, becoming moderate or rough for a time. Showers. Good.


Berwick upon Tweed to Whitby - Strong wind warning

24 hour forecast: North backing west 4 or 5, backing southwest 5 to 7, perhaps gale 8 later. Moderate. Showers then fair, rain for a time later. Mainly good.

Outlook for the following 24 hours: West or southwest 5 to 7. Slight or moderate. Showers. Good.


Whitby to Gibraltar Point - Strong wind warning

24 hour forecast: North backing west 4 or 5, then backing southwest later, 5 to 7. Slight or moderate. Wintry showers then fair, occasional rain later. Mainly good.

Outlook for the following 24 hours: West or southwest 5 to 7. Slight or moderate. Occasional rain or showers. Good, occasionally moderate.


Gibraltar Point to North Foreland - Strong wind warning

24 hour forecast: Northwesterly 5 or 6, backing westerly 4 or 5, then southwesterly 5 to 7 later. Slight or moderate. Wintry showers, fair later. Good, occasionally moderate.

Outlook for the following 24 hours: Westerly or southwesterly 5 to 7, occasionally gale 8 at first. Slight or moderate, becoming moderate or rough for a time. Occasional rain or showers. Good, occasionally moderate.


North Foreland to Selsey Bill - Strong wind warning

24 hour forecast: Northwesterly 5 or 6, backing westerly 4 or 5, then southwesterly 5 to 7 later. Slight or moderate, becoming moderate or rough later. Occasional rain later. Good, occasionally moderate later.

Outlook for the following 24 hours: Westerly or southwesterly 5 to 7, occasionally gale 8. Moderate or rough. Occasional rain or showers. Good, occasionally moderate.


Selsey Bill to Lyme Regis - Strong wind warning

24 hour forecast: Northwest backing west 4 or 5, then backing southwest 5 to 7, perhaps gale 8 later. Slight or moderate, becoming moderate or rough later. Occasional rain later. Good, occasionally moderate later.

Outlook for the following 24 hours: West or southwest 6 to gale 8, perhaps severe gale 9 later. Moderate or rough. Occasional rain or showers. Good, occasionally moderate.


Lyme Regis to Lands End including the Isles of Scilly - Strong wind warning

24 hour forecast: North 5 or 6, backing west 4 or 5, then backing southwest 5 to 7, perhaps gale 8 later, then veering northwest later. Slight or moderate until later east of the Lizard, otherwise moderate or rough. Showers, rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: West or northwest 5 to 7, increasing gale 8, perhaps severe gale 9 later. Moderate or rough, becoming very rough or high in far west. Occasional rain or showers. Good, occasionally moderate.


Lands End to St Davids Head including the Bristol Channel - Strong wind warning

24 hour forecast: North 5 or 6, backing west 4 or 5, then southwest 5 to 7, then veering northwest later. Moderate or rough, becoming slight or moderate for a time in north and east. Showers, rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: West or northwest 5 to 7, increasing gale 8 or severe gale 9 later. Moderate or rough, becoming rough or very rough, occasionally high later in southwest. Occasional rain or showers. Good, occasionally moderate.


St Davids Head to Great Orme Head, including St Georges Channel - Strong wind warning

24 hour forecast: North 5 or 6, backing west 3 or 4, then south or southwest 5 to 7, then veering west 5 or 6 later. Moderate becoming slight for a time. Showers, rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: West 5 to 7, increasing gale 8 or severe gale 9 later. Moderate becoming rough or very rough later. Occasional rain or showers. Good, occasionally moderate.


Great Orme Head to the Mull of Galloway - Strong wind warning

24 hour forecast: North backing southwest 3 or 4, increasing 5 to 7, then veering west later. Smooth or slight, becoming slight or moderate later. Rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: West 5 to 7, increasing gale 8 or severe gale 9 later. Slight or moderate, becoming rough or very rough later. Occasional rain or showers. Good, occasionally moderate.


Isle of Man - Strong wind warning

24 hour forecast: North or northwest backing southwest 3 or 4, increasing 5 or 6, then veering west or southwest 6 or 7 later. Slight becoming moderate. Rain later. Good, occasionally moderate or poor later.

Outlook for the following 24 hours: West 5 or 6, increasing 7 or gale 8. Moderate becoming moderate or rough. Rain or showers. Good, occasionally poor.


Lough Foyle to Carlingford Lough - Strong wind warning

24 hour forecast: North backing south or southwest 4 or 5, increasing 6 or 7, then veering west later. Smooth or slight until later in east, otherwise slight or moderate, becoming moderate or rough in north. Showers, rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: West or southwest 5 to 7, increasing gale 8 or severe gale 9. Slight or moderate at first in east, otherwise moderate or rough, becoming very rough or high in north. Occasional rain or showers, wintry later. Good, occasionally moderate.


Mull of Galloway to Mull of Kintyre including the Firth of Clyde and North Channel - Strong wind warning

24 hour forecast: Northerly backing southerly or southwesterly 4 or 5, increasing 6 or 7, then veering westerly later. Smooth or slight, becoming slight or moderate later. Showers, rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: Westerly or southwesterly 5 to 7, increasing gale 8 or severe gale 9. Slight or moderate, becoming moderate or rough, occasionally very rough later in far north. Occasional rain or showers, becoming wintry. Moderate or good, occasionally poor.


Mull of Kintyre to Ardnamurchan Point - Strong wind warning

24 hour forecast: North backing southwest 4 or 5, then backing south 5 to 7, perhaps gale 8 later, then veering west later. Moderate or rough. Showers, rain for a time later. Good, occasionally poor later.

Outlook for the following 24 hours: West 6 to gale 8. Moderate or rough, becoming very rough or high. Occasional rain or wintry showers. Moderate or good, occasionally poor.


The Minch - Strong wind warning

24 hour forecast: North backing southwest 4 or 5, then backing south 5 to 7, perhaps gale 8 later, then veering west later. Mainly slight until later in central areas, otherwise moderate or rough. Showers, rain for a time later. Good, occasionally poor later.

Outlook for the following 24 hours: West 5 to 7, occasionally gale 8 at first. Moderate or rough, becoming very rough in far north and in far south. Occasional rain or wintry showers. Moderate or good, occasionally poor.


Ardnamurchan Point to Cape Wrath - Strong wind warning

24 hour forecast: North backing southwest 4 or 5, then backing south 5 to 7, perhaps gale 8 later, then veering west later. Rough, occasionally very rough in west. Showers, rain for a time later. Good, occasionally poor later.

Outlook for the following 24 hours: West 5 to 7, occasionally gale 8 at first. Rough or very rough, becoming very rough or high. Occasional rain or wintry showers. Moderate or good, occasionally poor.


Shetland Isles - Strong wind warning

24 hour forecast: Cyclonic, mainly northeast 4 or 5, becoming variable 3 or 4, then south or cyclonic later, 5 to 7, perhaps gale 8 later. Slight in sheltered east, otherwise moderate or rough. Showers then fair, rain later. Mainly good.

For Coastal areas up to 60 nautical miles from Lerwick, Shetland

Valid Tuesday 12 Dec 2017 at 0000 UTC until Tuesday 12 Dec 2017 at 1200 UTC

General situation: Shallow low south of Shetland drifts east overnight with a weak ridge toppling across Shetland waters on Tuesday. A frontal trough moves east across the area Tuesday night.

Forecast: Northeasterly 3 or 4, occasionally 5 at first in south and west. becoming variable 3, then southwesterly 3 or 4 later in northwest. Moderate, occasionally rough in west Showers at first Mainly good

Outlook for 12 Hours from 1200 UTC on Tuesday 12 Dec until 0000 UTC on Wednesday 13 Dec: Variable 3 at first in southeast, otherwise southwesterly 3 or 4 backing southerly 5 or 6. becoming cyclonic 5 to 7, perhaps gale 8, later In west; rough, occasionally moderate at first. in east;. moderate, occasionally slight at first. Rain later Good


Channel Islands - Strong wind warning

24 hour forecast: Northwest 2 to 4, locally 5 backing west to southwest during the afternoon and increasing 4 to 5 by evening, backing southwest to south 5 to 6, occasionally 7 by midnight. Slight to moderate increasing moderate to rather rough in the evening. Isolated showers, occasional rain from mid-evening. Good, occasionally moderate to poor in rain or showers.

Outlook for the following 24 hours: South to southwest 5 to 6, occasionally 7, veering westerly around dawn, backing southwest by midday, veering west to northwest 6 to 7 by evening. Moderate to rather rough with a low swell, increasing rather rough to rough by evening, occasionally very rough. Occasional rain, soon clearing, scattered showers developing. Good, occasionally moderate to poor in rain or showers.