Coast and sea

Inshore waters and strong winds

General situation

A large area of high pressure will remain slow-moving across the southern half of the British Isles, bringing settled conditions to most areas.

Issued at:

For coastal areas up to 12 miles offshore for the period to

Inshore waters forecast and strong winds map

Cape Wrath to Rattray Head including Orkney (1)

Strong winds are forecast

24 hour forecast:

Wind
Southwesterly 5 to 7, increasing gale 8 at times, occasionally severe gale 9 in far northwest.
Sea state
Slight or moderate, becoming moderate or rough becoming rough or very rough west of Orkney.
Weather
Occasional rain at first in north, otherwise mainly fair.
Visibility
Good, occasionally moderate in north.

Outlook for the following 24 hours:

Wind
Southwesterly 5 to 7, occasionally gale 8 in far northwest, veering northwesterly 4 or 5, then becoming variable 3 or 4 later in south.
Sea state
Rough or very rough to the west and north of Orkney, but elsewhere slight or moderate.
Weather
Rain or drizzle for a time.
Visibility
Mainly good, becoming moderate or poor for a time.

Rattray Head to Berwick upon Tweed (2)

Strong winds are forecast

24 hour forecast:

Wind
Westerly or southwesterly 5 to 7, decreasing 4 at times in north.
Sea state
Slight or moderate.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West or southwest 5 to 7, becoming variable 3 or 4 later.
Sea state
Slight or moderate, becoming smooth or slight later.
Weather
Occasional drizzle later.
Visibility
Good, occasionally poor later.

Berwick upon Tweed to Whitby (3)

Strong winds are forecast

24 hour forecast:

Wind
Westerly or southwesterly 4 or 5, occasionally 6 later in north.
Sea state
Slight, occasionally moderate at first.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Westerly or southwesterly 3 to 5, occasionally 6 in north.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good.

Whitby to Gibraltar Point (4)

24 hour forecast:

Wind
West or northwest, backing west or southwest, 3 or 4, occasionally 5 later.
Sea state
Slight or moderate, becoming slight later.
Weather
Fair.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
West or southwest 3 to 5.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good, occasionally moderate.

Gibraltar Point to North Foreland (5)

24 hour forecast:

Wind
Northerly 4 or 5 at first in southeast, otherwise northwesterly backing westerly, 3 or 4.
Sea state
Slight or moderate, becoming smooth or slight.
Weather
Showers at first in south.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Westerly or southwesterly, becoming variable in south, 2 to 4.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good, occasionally moderate.

North Foreland to Selsey Bill (6)

24 hour forecast:

Wind
Northerly 3 or 4, occasionally 5 at first in east, decreasing 2 at times later.
Sea state
Slight or moderate at first in east, otherwise smooth or slight.
Weather
Showers at first in east.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Northerly or northeasterly, becoming variable, 2 or 3, increasing 4 at times.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good, occasionally moderate.

Selsey Bill to Lyme Regis (7)

24 hour forecast:

Wind
North or northeast 3 or 4, occasionally 2 later.
Sea state
Slight, occasionally smooth in shelter.
Weather
Fair.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
North or northeast 2 to 4.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good, occasionally moderate.

Lyme Regis to Lands End including the Isles of Scilly (8)

24 hour forecast:

Wind
East or northeast 2 or 3, occasionally 4 at first.
Sea state
Slight or moderate, occasionally rough at first in far southwest, becoming smooth or slight in east.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
North or northeast 2 to 4.
Sea state
Smooth or slight, but moderate, occasionally rough later, in far southwest.
Weather
Fair.
Visibility
Good.

Lands End to St Davids Head including the Bristol Channel (9)

24 hour forecast:

Wind
Variable 3 or less.
Sea state
Slight or moderate, becoming smooth or slight in east.
Weather
Fair.
Visibility
Good, occasionally moderate in Bristol Channel.

Outlook for the following 24 hours:

Wind
Variable, mainly northerly in west, 3 or less.
Sea state
Smooth or slight at first in east, otherwise slight or moderate, occasionally rough later in far southwest.
Weather
Fair.
Visibility
Good, occasionally moderate in Bristol Channel.

St Davids Head to Great Orme Head, including St Georges Channel (10)

24 hour forecast:

Wind
Variable becoming southwesterly, 2 to 4, occasionally 5 near Anglesey.
Sea state
Slight or moderate, but smooth or slight east of Anglesey.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Westerly or southwesterly 3 or 4, occasionally 5 in far north.
Sea state
Mainly slight.
Weather
Fair.
Visibility
Good.

Great Orme Head to the Mull of Galloway (11)

24 hour forecast:

Wind
Variable 2 to 4, becoming southwest 3 to 5.
Sea state
Smooth or slight, becoming slight or moderate in north.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West or southwest 3 to 5.
Sea state
Slight or moderate, becoming smooth or slight.
Weather
Fair.
Visibility
Good.

Isle of Man (12)

24 hour forecast:

Wind
Southwest 4 or 5, occasionally 3 at first.
Sea state
Smooth or slight, becoming slight or moderate.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West or southwest 3 or 4, occasionally 5 at first.
Sea state
Slight, occasionally moderate at first.
Weather
Mainly fair.
Visibility
Good.

Lough Foyle to Carlingford Lough (13)

24 hour forecast:

Wind
Southwest 4 or 5.
Sea state
Smooth or slight, occasionally moderate.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwest 4 or 5, increasing 6 at times, occasionally 3 later.
Sea state
Moderate or rough in far north, but elsewhere slight or moderate, becoming smooth or slight in east.
Weather
Mainly fair.
Visibility
Good, occasionally moderate later.

Mull of Galloway to Mull of Kintyre including the Firth of Clyde and North Channel (14)

24 hour forecast:

Wind
Southwesterly 4 or 5, decreasing 3 at times.
Sea state
Slight, occasionally moderate.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwesterly 3 to 5, increasing 6 for a time.
Sea state
Slight or moderate, becoming smooth or slight later.
Weather
Mainly fair.
Visibility
Good, occasionally moderate later.

Mull of Kintyre to Ardnamurchan Point (15)

Strong winds are forecast

24 hour forecast:

Wind
Southwest 4 to 6, occasionally 7 near Coll and Tiree.
Sea state
Slight or moderate at first in south, otherwise moderate or rough, becoming rough or very rough in north.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwesterly 5 or 6, occasionally 7 at first in north, decreasing 4 at times in south.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Rain or drizzle later.
Visibility
Good, becoming moderate or poor later.

The Minch (16)

Strong winds are forecast

24 hour forecast:

Wind
Southwest 6 to gale 8.
Sea state
Moderate or rough, but slight or moderate just north of skye.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwesterly 5 to 7, occasionally gale 8 at first in north, becoming variable 3 or less later.
Sea state
Moderate or rough, becoming slight or moderate later.
Weather
Rain or drizzle for a time.
Visibility
Moderate or good, occasionally poor for a time.

Ardnamurchan Point to Cape Wrath (17)

Strong winds are forecast

24 hour forecast:

Wind
Southwesterly 6 to gale 8, occasionally severe gale 9 in far north.
Sea state
Rough or very rough.
Weather
Occasional drizzle at times in north.
Visibility
Moderate or good.

Outlook for the following 24 hours:

Wind
Southwest 6 or 7, veering northwest 4 or 5, then becoming variable 3 or 4 later.
Sea state
Rough or very rough, occasionally high at first to the west of the Outer Hebrides.
Weather
Rain or drizzle, mainly fair later.
Visibility
Moderate or good, occasionally poor.

Shetland Isles (18)

Strong winds are forecast

24 hour forecast:

Wind
Westerly 4 to 6 at first in east, otherwise southwesterly 6 to gale 8, occasionally severe gale 9 later in west.
Sea state
Rough or very rough, occasionally moderate in sheltered east.
Weather
Occasional rain or drizzle.
Visibility
Moderate or good, occasionally poor later.

For Coastal areas up to 60 nautical miles from Lerwick, Shetland (18)

Valid Sunday 19 Jan 2020 at 1200 UTC until Monday 20 Jan 2020 at 0000 UTC

General situation

Low pressure to north and high pressure to south with frontal troughs pushing across Shetland on the strengthening southwesterly flow.

Forecast

Wind
Westerly 4 to 6 at first in east, otherwise southwesterly 6 to gale 8
Sea state
Rough becoming very rough, but moderate in shelter east of shetland
Weather
Occasional rain
Visibility
Good occasionally moderate

Outlook for 12 Hours from 0000 UTC on Monday 20 Jan until 1200 UTC on Monday 20 Jan

Wind
Southwesterly 6 to gale 8, occasionally severe gale 9 later in west
Sea state
Very rough, occasionally high in west, but moderate or rough to east of shetland
Weather
Occasional rain or drizzle
Visibility
Good occasionally moderate or poor

Channel Islands (19)

24 hour forecast:

Wind
Northeasterly 3 to 4, occasionally 5 on Sunday.
Sea state
Mainly slight with a low swell.
Weather
Fair or fine.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northeasterly 2 to 4, then easterly overnight.
Sea state
Smooth or slight, with a low swell.
Weather
Risk of mist or fog patches near french coasts early Tuesday morning.
Visibility
Good, perhaps locally poor or very poor.

Forecasts for UK inshore waters are issued four times a day and cover a period of 24 hours from 0000, 0600, 1200 and 1800 UTC.

The coastal waters around the British Isles are divided into 19 areas which extend up to 12 nautical miles offshore.

The forecast contains details of wind direction and force, sea state, weather and visibility.

Strong coastal winds (force 6 or more) are displayed for the first 24 hours of the inshore waters forecast.

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.

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