Coast and sea

Inshore waters and strong winds

General situation

A weakening front clears south across the southern United Kingdom with a ridge building east across the area on Monday. A high then will move east over Irish Sea on Tuesday as another front affects the northwest United Kingdom.

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
Westerly 5 to 7, occasionally gale 8 later in north.
Sea state
Slight or moderate, but rough in northwest, occasionally very rough later in far north.
Weather
Squally showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Westerly 6 to gale 8, veering northwesterly 4 to 6, backing westerly 3 or 4, then southeasterly 3 to 5 later.
Sea state
Rough or very rough becoming moderate, in northwest, slight or moderate, occasionally rough, in southeast.
Weather
Squally showers at first, occasional rain later.
Visibility
Good, occasionally moderate later.

Rattray Head to Berwick upon Tweed (2)

Strong winds are forecast

24 hour forecast:

Wind
West 4 or 5, occasionally 6 later.
Sea state
Smooth or slight, occasionally moderate in north, becoming slight or moderate.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West veering northwest, 5 or 6, occasionally 7 near Rattray Head, becoming variable 4 or less later.
Sea state
Slight or moderate, occasionally rough in north, becoming smooth or slight later.
Weather
Fair.
Visibility
Good.

Berwick upon Tweed to Whitby (3)

Strong winds are forecast

24 hour forecast:

Wind
West or northwest 3 or 4, increasing 5 or 6.
Sea state
Mainly slight.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West or northwest 5 or 6, veering north 3 or 4, becoming variable 3 or less, then southwest 3 or 4 later.
Sea state
Slight or moderate.
Weather
Fair.
Visibility
Good.

Whitby to Gibraltar Point (4)

24 hour forecast:

Wind
Variable, mainly north, 4 or less, becoming northwest 4 or 5 later.
Sea state
Mainly slight.
Weather
Occasional rain or drizzle becoming fair.
Visibility
Good, occasionally moderate at first.

Outlook for the following 24 hours:

Wind
Northwest 4 or 5, veering north 3 or 4, becoming variable 3 or less later.
Sea state
Slight or moderate.
Weather
Fair.
Visibility
Good.

Gibraltar Point to North Foreland (5)

24 hour forecast:

Wind
Variable 3 or less, becoming northerly or northwesterly 3 or 4.
Sea state
Smooth or slight.
Weather
Occasional rain or drizzle becoming fair later.
Visibility
Good, occasionally moderate until later.

Outlook for the following 24 hours:

Wind
Northerly or northwesterly 3 or 4, occasionally 5 in north.
Sea state
Smooth or slight, becoming slight or moderate.
Weather
Fair.
Visibility
Good.

North Foreland to Selsey Bill (6)

24 hour forecast:

Wind
Westerly 3 or 4, veering northerly or northeasterly 4.
Sea state
Smooth, occasionally slight later.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northerly or northeasterly 4, occasionally 5 later.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good.

Selsey Bill to Lyme Regis (7)

24 hour forecast:

Wind
Northwest 3 or 4, veering north 2 or 3, then northeast 4.
Sea state
Mainly smooth.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northeast 4, occasionally 5 at first.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Moderate or good.

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

24 hour forecast:

Wind
West or northwest 3 or 4, veering north or northeast 2 to 4.
Sea state
Smooth or slight, but moderate in far west.
Weather
Mainly fair.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
North or northeast 3 to 5.
Sea state
Smooth or slight, but moderate in far west.
Weather
Fair.
Visibility
Good.

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

24 hour forecast:

Wind
West 4 or 5, veering northwest 3 or 4, occasionally 5 near saint david's head, veering northeast 4 or 5 later.
Sea state
Slight, occasionally moderate in west.
Weather
Occasional drizzle becoming fair later.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Northeast 4 or 5, veering east 3 or 4.
Sea state
Smooth or slight, but moderate in southwest.
Weather
Fair.
Visibility
Good.

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

24 hour forecast:

Wind
West 3 or 4, veering northeast 4 or 5, backing north 3 or 4 later.
Sea state
Smooth or slight, occasionally moderate later in southwest.
Weather
Occasional rain or drizzle becoming fair later.
Visibility
Moderate or good.

Outlook for the following 24 hours:

Wind
North 3 or 4, becoming variable 3 or less later.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good.

Great Orme Head to the Mull of Galloway (11)

24 hour forecast:

Wind
Northeast 2 to 4, backing northwest 4 or 5.
Sea state
Smooth becoming mainly slight.
Weather
Occasional rain or drizzle, becoming fair.
Visibility
Good, occasionally moderate at first.

Outlook for the following 24 hours:

Wind
Northwest 4 or 5, decreasing 2 or 3, backing west or southwest 3 or 4 later.
Sea state
Smooth or slight becoming smooth later.
Weather
Fair.
Visibility
Good.

Isle of Man (12)

24 hour forecast:

Wind
Variable 3 or less, becoming northwest 4 or 5 later.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northwest 4 or 5, becoming variable 2 or 3.
Sea state
Smooth or slight.
Weather
Fair.
Visibility
Good.

Lough Foyle to Carlingford Lough (13)

24 hour forecast:

Wind
Variable 3 or less, becoming northwest 4 or 5.
Sea state
Smooth or slight, but moderate, occasionally rough at first, in north.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northwest 4 or 5, becoming variable 3 or less, then southwest 3 or 4 later.
Sea state
Smooth or slight, occasionally moderate in north.
Weather
Fair.
Visibility
Good.

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

24 hour forecast:

Wind
Variable 3 or less, becoming northwesterly 4 or 5.
Sea state
Smooth or slight, occasionally moderate near Mull of Kintyre.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Northwesterly 4 or 5, becoming variable 3 or less, then southwesterly 3 or 4 later.
Sea state
Smooth or slight, occasionally moderate at first near Mull of Kintyre.
Weather
Fair.
Visibility
Good.

Mull of Kintyre to Ardnamurchan Point (15)

24 hour forecast:

Wind
West or northwest 4 or 5.
Sea state
Moderate or rough, but slight in shelter.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
West or northwest, backing southwest later, 4 or 5, decreasing 3 for a time.
Sea state
Slight or moderate, occasionally rough at first in northwest.
Weather
Showers at first, occasional rain later.
Visibility
Good, occasionally moderate later.

The Minch (16)

Strong winds are forecast

24 hour forecast:

Wind
Westerly 5 or 6, occasionally 7 in north.
Sea state
Slight or moderate, but rough in north.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Westerly 5 or 6, veering northwesterly 3 or 4, backing southeasterly 5 or 6, veering southwesterly 4 or 5 later.
Sea state
Slight or moderate, but rough at first in north, occasionally smooth north of skye.
Weather
Showers at first, occasional rain later.
Visibility
Good, occasionally moderate later.

Ardnamurchan Point to Cape Wrath (17)

Strong winds are forecast

24 hour forecast:

Wind
Westerly 5 or 6, occasionally 7 in north.
Sea state
Rough.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Westerly 5 or 6, veering northwesterly 3 or 4, backing southeasterly 5 or 6, veering southwesterly 4 or 5 later.
Sea state
Rough becoming moderate.
Weather
Showers at first, occasional rain later.
Visibility
Good, occasionally moderate later.

Shetland Isles (18)

Strong winds are forecast

24 hour forecast:

Wind
West, veering northwest, 5 to 7, occasionally gale 8 later.
Sea state
Rough or very rough, but moderate in shelter east of Shetland.
Weather
Squally showers.
Visibility
Good.

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

Valid Monday 16 Sep 2019 at 0000 UTC until Monday 16 Sep 2019 at 1200 UTC

General situation

A broad west to northwest airstream covers Shetland and surrounding waters.

Forecast

Wind
West 5 or 6
Sea state
Moderate or rough
Weather
Showers
Visibility
Good

Outlook for 12 Hours from 1200 UTC on Monday 16 Sep until 0000 UTC on Tuesday 17 Sep

Wind
West or northwest 5 to 7, occasionally gale 8 later
Sea state
Moderate or rough, becoming very rough in west
Weather
Showers
Visibility
Good

Channel Islands (19)

24 hour forecast:

Wind
North to northwest 2 to 4, backing northwest 3 to 4 around midday, then veering northerly 2 to 4 by midnight.
Sea state
Smooth, occasionally slight.
Weather
Occasional mist with patchy drizzle spreading southwards Monday evening, local fog patches forming later, mainly in the north and west of the area.
Visibility
Good, occasionally moderate to poor at times during the evening, locally very poor later.

Outlook for the following 24 hours:

Wind
Northerly 2 to 4, veering northeast by dawn, increasing 4 to 5 by midday, perhaps locally 6 in the north and west of the area, veering easterly later.
Sea state
Smooth to slight, becoming slight occasionally moderate later, with a low swell.
Weather
Occasional mist and patchy drizzle, with fog patches at first, gradually clearing southwest to becoming fair or fine by early afternoon.
Visibility
Moderate, occasionally poor, locally very poor at first, becoming mainly good from midday.

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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