Coast and sea

Inshore waters and strong winds

General situation

A large Atlantic low to the west of Ireland will gradually edge eastwards, reaching the Irish Sea by tomorrow evening.

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)

24 hour forecast:

Wind
Southeast backing northeast 3 to 5.
Sea state
Slight or moderate.
Weather
Mainly fair near Orkney, otherwise showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
North or northeast 3 to 5, increasing 6 to gale 8.
Sea state
Moderate, becoming rough.
Weather
Showers.
Visibility
Good.

Rattray Head to Berwick upon Tweed (2)

24 hour forecast:

Wind
Southeast 3 to 5, becoming cyclonic 2 to 4.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Cyclonic 2 to 4, becoming 5 or 6, occasionally 7 near Rattray Head.
Sea state
Moderate, occasionally rough later in north.
Weather
Showers.
Visibility
Good.

Berwick upon Tweed to Whitby (3)

24 hour forecast:

Wind
Southeast 3 to 5, becoming cyclonic 3 or less.
Sea state
Slight.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Cyclonic 3 or less, becoming north 2 to 4, occasionally 5 later.
Sea state
Slight or moderate.
Weather
Showers, thundery for a time.
Visibility
Good, occasionally poor.

Whitby to Gibraltar Point (4)

Strong winds are forecast

24 hour forecast:

Wind
South 3 to 5, veering southwest 5 or 6, perhaps 7 later.
Sea state
Slight, occasionally moderate in south.
Weather
Rain or showers, thundery at times.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southwest 4 to 6, becoming cyclonic 3 or less.
Sea state
Slight.
Weather
Showers, thundery for a time.
Visibility
Good, occasionally poor.

Gibraltar Point to North Foreland (5)

Strong winds are forecast

24 hour forecast:

Wind
Southerly veering southwesterly 4 to 6, increasing 7 or gale 8 later.
Sea state
Slight, becoming moderate or rough in south.
Weather
Rain or showers, thundery at times.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southwesterly 6 to gale 8, decreasing 3 to 5.
Sea state
Slight or moderate, occasionally rough at first in south.
Weather
Showers.
Visibility
Good.

North Foreland to Selsey Bill (6)

Strong winds are forecast

24 hour forecast:

Wind
Southwesterly 5 to 7, occasionally gale 8 later.
Sea state
Moderate, becoming rough.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southwesterly 6 to gale 8, perhaps severe gale 9 at first, decreasing 3 to 5 later.
Sea state
Rough, becoming moderate.
Weather
Showers, thundery at times.
Visibility
Good, occasionally poor.

Selsey Bill to Lyme Regis (7)

Strong winds are forecast

24 hour forecast:

Wind
Southwest 6 to gale 8, occasionally 5 overnight.
Sea state
Rough, occasionally very rough south of Isle of Wight.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southwest 6 to gale 8, decreasing 4 or 5.
Sea state
Rough, becoming moderate.
Weather
Showers, thundery at times.
Visibility
Good, occasionally poor.

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

Strong winds are forecast

24 hour forecast:

Wind
Southwest 6 to gale 8, occasionally 5 overnight.
Sea state
Rough or very rough.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southwest 6 to gale 8, veering west 4 or 5.
Sea state
Rough or very rough, becoming moderate.
Weather
Showers.
Visibility
Good.

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

Strong winds are forecast

24 hour forecast:

Wind
Southwest 6 to gale 8, becoming cyclonic 3 to 5 for a time tonight, then veering westerly tomorrow.
Sea state
Rough or very rough.
Weather
Thundery showers.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
West 6 to gale 8, decreasing 4 or 5.
Sea state
Rough or very rough, becoming moderate.
Weather
Showers.
Visibility
Moderate or good, occasionally poor.

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

Strong winds are forecast

24 hour forecast:

Wind
Southwesterly 5 to 7, becoming cyclonic 3 or 4 later in north.
Sea state
Rough or very rough, occasionally moderate later in north.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Cyclonic 4 to 6, becoming north 3 to 5 later.
Sea state
Rough or very rough, becoming moderate.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Great Orme Head to the Mull of Galloway (11)

Strong winds are forecast

24 hour forecast:

Wind
South or southwest 4 to 6, becoming cyclonic 3 to 5 later.
Sea state
Moderate or rough, occasionally slight later.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Cyclonic 3 to 5, becoming north 4 to 6.
Sea state
Slight or moderate.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Isle of Man (12)

Strong winds are forecast

24 hour forecast:

Wind
South or southwest 4 to 6, becoming cyclonic 3 to 5 later.
Sea state
Moderate occasionally rough in south, becoming mostly slight later.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Cyclonic 3 to 5, becoming north 4 to 6.
Sea state
Slight or moderate.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Lough Foyle to Carlingford Lough (13)

Strong winds are forecast

24 hour forecast:

Wind
South 4 or 5, occasionally 6 at first, becoming cyclonic 2 to 4.
Sea state
Moderate, becoming slight.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Cyclonic 2 to 4, becoming north 4 to 6.
Sea state
Slight or moderate, becoming rough later in northwest.
Weather
Showers.
Visibility
Good.

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

Strong winds are forecast

24 hour forecast:

Wind
Southerly 4 to 6, becoming cyclonic 3 to 5 later.
Sea state
Moderate becoming slight in shelter, but rough at first near Mull of Kintyre.
Weather
Showers.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Cyclonic 2 to 4, becoming northerly 4 or 5, occasionally 6 later.
Sea state
Slight or moderate, becoming rough at times.
Weather
Showers.
Visibility
Good.

Mull of Kintyre to Ardnamurchan Point (15)

Strong winds are forecast

24 hour forecast:

Wind
Southeast 4 to 6, backing north 2 to 4.
Sea state
Moderate or rough, but slight in shelter.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
North 2 to 4, increasing 5 or 6, occasionally 7 later.
Sea state
Moderate or rough.
Weather
Showers, then mainly fair.
Visibility
Good.

The Minch (16)

Strong winds are forecast

24 hour forecast:

Wind
Southeast 4 to 6, backing north 2 to 4.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
North 2 to 4, increasing 5 to 7, perhaps gale 8 later.
Sea state
Slight or moderate.
Weather
Showers, then mainly fair.
Visibility
Good.

Ardnamurchan Point to Cape Wrath (17)

Strong winds are forecast

24 hour forecast:

Wind
Southeast 4 to 6, backing north 2 to 4.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
North 2 to 4, increasing 5 to 7, perhaps gale 8 later.
Sea state
Moderate or rough.
Weather
Showers, then mainly fair.
Visibility
Good.

Shetland Isles (18)

24 hour forecast:

Wind
Variable 3 or less, becoming northeast 3 or 4.
Sea state
Mainly slight, but with a moderate swell, particularly west or Shetland.
Weather
Mainly fair.
Visibility
Good.

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

Valid Thursday 17 Oct 2019 at 1800 UTC until Friday 18 Oct 2019 at 0600 UTC

General situation

Low to the west of Scotland slowly progresses east causing the weak ridge of high over Shetland waters to decline on Thursday.

Forecast

Wind
Westerly 3 or 4, backing southeast later.
Sea state
Moderate, occasionally rough in far north and far west.
Weather
Fair.
Visibility
Mainly good.

Outlook for 12 Hours from 0600 UTC on Friday 18 Oct until 1800 UTC on Friday 18 Oct

Wind
Southeast 3 or less, backing northeast and increasing 4 later in the west.
Sea state
Moderate, occasionally rough in north at first, becoming slight east of shetland later.
Weather
Mainly fair, isolated showers.
Visibility
Good.

Channel Islands (19)

Strong winds are forecast

24 hour forecast:

Wind
South to southwest 5 to 7, increasing 6 to gale 8 with gusts to 50kt by late evening, veering southwest to west after midnight.
Sea state
Rather rough to rough, locally moderate jersey southwards at first this evening, becoming generally rough until morning, locally very rough mid-channel.
Weather
Scattered showers, locally heavy, becoming frequent and squally for a time overnight, with a risk of hail and thunder.
Visibility
Moderate to good, occasionally poor in showers.

Outlook for the following 24 hours:

Wind
Southwest 6 to 7, locally gale 8 with gusts to 50kt mid-channel at first in the evening, decreasing 4 to 6 overnight.
Sea state
Rather rough or rough, locally moderate jersey southward with swell, becoming generally moderate towards evening.
Weather
Scattered squally showers, with a risk of hail and thunder at first, becoming isolated Saturday afternoon.
Visibility
Moderate to good, occasionally poor in showers.

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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