Coast and sea

Inshore waters and strong winds

General situation

A deep low over Norway will move away north as the strong winds and gales will gradually ease. A small low will move east into the channel on Saturday, before an Atlantic low will move southeast over Ireland.

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
West or northwest 6 to gale 8, decreasing 4 or 5 later.
Sea state
Slight or moderate in Moray Firth, otherwise rough or very rough, occasionally high at first in northwest.
Weather
Wintry showers.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
West or northwest 4 or 5, backing southwest 3 or 4.
Sea state
Moderate or rough, but slight in inner Moray Firth, occasionally very rough at first in northwest.
Weather
Wintry showers.
Visibility
Good occasionally poor.

Rattray Head to Berwick upon Tweed (2)

Strong winds are forecast

24 hour forecast:

Wind
Northwest 6 to gale 8, backing west 3 or 4.
Sea state
Slight or moderate, occasionally rough in east and very rough at first in far northeast.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West 3 or 4.
Sea state
Slight or moderate, occasionally rough at first in northeast and smooth in southwest.
Weather
Wintry showers.
Visibility
Good, occasionally poor.

Berwick upon Tweed to Whitby (3)

Strong winds are forecast

24 hour forecast:

Wind
Northwest 6 or 7, backing west 3 or 4.
Sea state
Moderate or rough becoming moderate later.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West 3 or 4, veering northwest 2 or 3 for a time.
Sea state
Moderate.
Weather
Wintry showers later.
Visibility
Good, occasionally poor later.

Whitby to Gibraltar Point (4)

Strong winds are forecast

24 hour forecast:

Wind
West 6 or 7, backing southwest 4 or 5.
Sea state
Moderate or rough becoming moderate.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwest 4 or 5, veering northwest 3 to 5.
Sea state
Slight or moderate.
Weather
Wintry showers later.
Visibility
Good, occasionally poor later.

Gibraltar Point to North Foreland (5)

Strong winds are forecast

24 hour forecast:

Wind
Southwesterly 4 to 6, decreasing 3 or 4.
Sea state
Smooth or slight, but moderate in northeast.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwesterly 3 or 4, veering northwesterly 2 to 4, increasing 4 to 6 later.
Sea state
Smooth or slight, occasionally moderate in northeast.
Weather
Wintry showers later.
Visibility
Good, occasionally poor later.

North Foreland to Selsey Bill (6)

24 hour forecast:

Wind
Westerly 4 or 5, backing southwesterly 3 or 4, becoming variable 3 or less later.
Sea state
Slight, occasionally moderate in southwest and smooth in northeast.
Weather
Showers.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming northwesterly 4, backing westerly 4 to 6, becoming variable 4 or less later.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good, occasionally moderate at first.

Selsey Bill to Lyme Regis (7)

24 hour forecast:

Wind
West 3 or 4, occasionally 5 offshore, becoming variable 3 or less, then northeast 3 or 4 later.
Sea state
Moderate, occasionally slight near shore.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northeast 3 or 4, backing north 4 or 5, becoming variable 4 or less, then southeast 3 or 4 later.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good.

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

Strong winds are forecast

24 hour forecast:

Wind
West 3 to 5, increasing 5 or 6, becoming variable 3 or less, then north 4 or 5 later.
Sea state
Moderate or rough, occasionally slight in lyme bay.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
North 4 or 5, becoming variable 4 or less, then cyclonic 5 to 7 later.
Sea state
Moderate or rough, occasionally slight in lyme bay.
Weather
Showers, perhaps wintry later.
Visibility
Good, occasionally poor later.

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

Strong winds are forecast

24 hour forecast:

Wind
Westerly or northwesterly 3 to 5, occasionally 6 in southwest, becoming variable 4 or less, then northerly 3 to 5 later.
Sea state
Slight or moderate in Bristol Channel, otherwise moderate or rough.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northerly 3 to 5 becoming variable 4 or less, then cyclonic 4 to 6 later.
Sea state
Slight or moderate, occasionally rough in southwest.
Weather
Showers, perhaps wintry later.
Visibility
Good, occasionally poor later.

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

Strong winds are forecast

24 hour forecast:

Wind
Northwesterly 4 or 5, occasionally 6 at first in northeast.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northwesterly 4 or 5, occasionally 6 in north, becoming variable 4 or less, then southeasterly 4 or 5 in south later.
Sea state
Slight or moderate, occasionally smooth later in northeast.
Weather
Showers.
Visibility
Good.

Great Orme Head to the Mull of Galloway (11)

Strong winds are forecast

24 hour forecast:

Wind
West 4 to 6, veering northwest 3 to 5, backing west later.
Sea state
Slight or moderate becoming slight.
Weather
Wintry showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
West or northwest 3 to 5, increasing 5 or 6, becoming variable 3 or less later.
Sea state
Slight or moderate becoming smooth or slight.
Weather
Wintry showers.
Visibility
Good, occasionally poor.

Isle of Man (12)

Strong winds are forecast

24 hour forecast:

Wind
West 5 or 6, veering northwest 4 or 5 for a time.
Sea state
Slight or moderate.
Weather
Wintry showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
West 5 or 6 veering northwest 6, becoming variable 3 or less later.
Sea state
Slight or moderate becoming smooth or slight.
Weather
Wintry showers.
Visibility
Good occasionally poor.

Lough Foyle to Carlingford Lough (13)

Strong winds are forecast

24 hour forecast:

Wind
West or northwest 4 or 5, occasionally 6 at first, increasing 5 to 7 later.
Sea state
Slight or moderate, occasionally rough in northwest.
Weather
Squally wintry showers mainly in north.
Visibility
Good occasionally poor.

Outlook for the following 24 hours:

Wind
Northwest 5 to 7, backing west 3 or 4, then southwest 5 to 7, veering northwest 3 to 5 later.
Sea state
Slight or moderate, occasionally rough at first in north and in the North Channel, and smooth later in south.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

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

Strong winds are forecast

24 hour forecast:

Wind
Northwesterly 3 to 5, occasionally 6 at first, becoming cyclonic 5 to 7 later.
Sea state
Slight or moderate, becoming smooth or slight for a time.
Weather
Squally wintry showers.
Visibility
Good occasionally poor.

Outlook for the following 24 hours:

Wind
Cyclonic 5 to 7, becoming westerly 2 to 4, backing southwesterly 5 to 7, veering northwesterly 3 or 4 later.
Sea state
Slight or moderate, occasionally rough in North Channel, becoming smooth or slight later.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

Mull of Kintyre to Ardnamurchan Point (15)

Strong winds are forecast

24 hour forecast:

Wind
Northwest 4 or 5, occasionally 6 at first, becoming cyclonic 5 to 7 later.
Sea state
Moderate or rough, but slight in east.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

Outlook for the following 24 hours:

Wind
Cyclonic, becoming northwest, 4 to 6, occasionally 7 at first, backing west 3 to 5 later.
Sea state
Slight or moderate, but rough until later in northwest.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

The Minch (16)

Strong winds are forecast

24 hour forecast:

Wind
Northwest 5 to 7, becoming cyclonic, mainly northwest, 4 to 6.
Sea state
Slight or moderate, but rough or very rough in north.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

Outlook for the following 24 hours:

Wind
Cyclonic, mainly northwest, 4 to 6, becoming west 3 to 5.
Sea state
Slight or moderate, but rough in north.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

Ardnamurchan Point to Cape Wrath (17)

Strong winds are forecast

24 hour forecast:

Wind
Northwest 5 to 7, becoming cyclonic, mainly northwest, 4 to 6.
Sea state
Rough or very rough, occasionally high at first in north.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

Outlook for the following 24 hours:

Wind
Cyclonic, mainly northwest, 4 to 6, becoming west 3 to 5.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Squally snow showers.
Visibility
Moderate or good, occasionally very poor.

Shetland Isles (18)

Strong winds are forecast

24 hour forecast:

Wind
North 6 to gale 8, backing northwest 5 to 7.
Sea state
Very rough or high, occasionally rough in sheltered southeast, becoming rough or very rough.
Weather
Wintry showers.
Visibility
Good, occasionally poor.

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

Valid Friday 22 Jan 2021 at 0600 UTC until Friday 22 Jan 2021 at 1800 UTC

General situation

Deep low will remain slow-moving close to the Norwegian coast east of Shetland maintaining a strong cold showery northwesterly airstream.

Forecast

Wind
Northwest 6 to gale 8.
Sea state
Very rough, occasionally high in northwest, and rough in more sheltered waters southeast of shetland.
Weather
Showers.
Visibility
Good, occasionally moderate.

Outlook for 12 Hours from 1800 UTC on Friday 22 Jan until 0600 UTC on Saturday 23 Jan

Wind
Northwesterly backing westerly 5 to 7, occasionally gale 8 at first in far northeast.
Sea state
Very rough, occasionally rough in southeast.
Weather
Wintry showers.
Visibility
Good, occasionally moderate or poor.

Channel Islands (19)

Strong winds are forecast

24 hour forecast:

Wind
Westerly 4 to 6, locally 3 at first, increasing 5 to 7 for a time this afternoon and evening, backing south to southeast 3 to 5 overnight, occasionally variable 1 to 3 by dawn.
Sea state
Slight to moderate with a low to moderate swell, increasing rather rough to rough for a time from midday until midnight.
Weather
Occasional showers, locally heavy with hail, dying out this evening rain spreading east after midnight, perhaps locally heavy with sleet.
Visibility
Good, occasionally moderate, perhaps locally poor.

Outlook for the following 24 hours:

Wind
South to southeast 3 to 5, occasionally variable 1 to 3 at first, becoming north to northwest by midday, backing southwest to south 4 to 6 overnight, perhaps locally 7.
Sea state
Slight to moderate with a low to moderate swell, increasing rather rough in the west later.
Weather
Rain or showers mainly at first and again later, locally heavy perhaps with sleet.
Visibility
Good, occasionally moderate, perhaps locally 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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