Coast and sea

Inshore waters and strong winds

General situation

Various areas of low pressure in the vicinity of the British Isles will maintain unsettled weather conditions during the next couple of days.

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
East or northeast 4 or 5, increasing 6 for a time.
Sea state
Slight or moderate, occasionally rough at first in far northwest.
Weather
Rain or drizzle, fog patches.
Visibility
Moderate or good, occasionally very poor.

Outlook for the following 24 hours:

Wind
Northeast, backing north later, 3 to 5.
Sea state
Slight or moderate.
Weather
Rain or showers, fog patches at first.
Visibility
Moderate or good, occasionally very poor at first.

Rattray Head to Berwick upon Tweed (2)

24 hour forecast:

Wind
East or northeast 3 or 4, occasionally 5 at first.
Sea state
Slight or moderate, but smooth or slight in west.
Weather
Rain or showers, fog patches.
Visibility
Moderate or good, occasionally very poor.

Outlook for the following 24 hours:

Wind
Northeast, backing north later, 3 or 4, occasionally 5 later.
Sea state
Smooth or slight in Firth of Forth, slight or moderate elsewhere.
Weather
Fog patches, occasional drizzle.
Visibility
Moderate or good, occasionally very poor.

Berwick upon Tweed to Whitby (3)

24 hour forecast:

Wind
Variable 2 to 4.
Sea state
Slight or moderate, becoming slight.
Weather
Showers, perhaps thundery, fog patches in north.
Visibility
Moderate or good, occasionally very poor in north.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming north or northeast 3 or 4.
Sea state
Slight, becoming slight or moderate.
Weather
Fog patches.
Visibility
Moderate or good, occasionally very poor.

Whitby to Gibraltar Point (4)

24 hour forecast:

Wind
South or southwest, backing southeast, 3 or 4, occasionally 5 at first, becoming variable 3 or less later.
Sea state
Slight, occasionally moderate in north.
Weather
Showers for a time, perhaps thundery.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming northeast, then backing north later, 3 to 5.
Sea state
Slight, occasionally moderate later.
Weather
Fog patches developing.
Visibility
Moderate or good, occasionally very poor.

Gibraltar Point to North Foreland (5)

24 hour forecast:

Wind
Southerly or southwesterly 4 or 5, becoming variable, then easterly later, 3 or 4.
Sea state
Smooth or slight.
Weather
Showers for a time.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Easterly backing northeasterly, 3 to 5.
Sea state
Slight, occasionally smooth at first.
Weather
Occasional rain or showers, fog patches in north.
Visibility
Moderate or good, occasionally very poor in north.

North Foreland to Selsey Bill (6)

24 hour forecast:

Wind
Southwesterly becoming variable, 3 or 4, then becoming easterly or northeasterly 4 or 5 later.
Sea state
Slight or moderate, becoming smooth or slight later in east.
Weather
Showers, rain later.
Visibility
Good, occasionally moderate later.

Outlook for the following 24 hours:

Wind
Easterly 3 to 5, becoming cyclonic 4 to 6, then northerly 4 or 5 later.
Sea state
Slight, occasionally moderate for a time.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

Selsey Bill to Lyme Regis (7)

Strong winds are forecast

24 hour forecast:

Wind
South or southwest 3 or 4, becoming cyclonic, mainly northeast, 4 or 5, increasing 6 at times.
Sea state
Slight or moderate.
Weather
Showers then rain.
Visibility
Good, becoming moderate or poor.

Outlook for the following 24 hours:

Wind
Cyclonic becoming north or northwest, 4 to 6.
Sea state
Slight or moderate.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

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

24 hour forecast:

Wind
Southwesterly becoming variable, 3 or 4, then becoming northwesterly 4 or 5 later in east.
Sea state
Slight or moderate, occasionally smooth in lyme bay.
Weather
Showers, rain developing in east.
Visibility
Good, occasionally moderate in east.

Outlook for the following 24 hours:

Wind
Variable 3 or 4 at first in west, otherwise northwesterly 4 or 5, occasionally 6 in east.
Sea state
Slight or moderate, occasionally smooth in lyme bay.
Weather
Mainly fair in west, rain in east.
Visibility
Good, occasionally poor in east.

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

24 hour forecast:

Wind
Southwest becoming variable, 2 to 4.
Sea state
Slight or moderate, but smooth or slight in Bristol Channel.
Weather
Showers, rain later in Bristol Channel.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Variable 2 to 4, becoming north or northwest 3 to 5.
Sea state
Slight or moderate, but smooth or slight in Bristol Channel.
Weather
Rain in east, otherwise mainly fair.
Visibility
Good, occasionally poor in east.

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

24 hour forecast:

Wind
Cyclonic becoming south or southwest, 3 to 5, then becoming variable 3 or less.
Sea state
Slight or moderate until later in south, otherwise smooth or slight.
Weather
Showers, perhaps thundery, fair later.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming mainly northerly 2 to 4.
Sea state
Smooth or slight, occasionally moderate in south.
Weather
Showers, rain at times.
Visibility
Good, occasionally moderate.

Great Orme Head to the Mull of Galloway (11)

24 hour forecast:

Wind
Variable, mainly south, 2 to 4.
Sea state
Smooth or slight.
Weather
Showers, thundery at times, fair later.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming easterly or northeast 3 or 4 later, occasionally 5 later in north.
Sea state
Smooth or slight.
Weather
Fair then thundery showers.
Visibility
Good, occasionally moderate.

Isle of Man (12)

24 hour forecast:

Wind
Variable 3 or less.
Sea state
Smooth or slight.
Weather
Showers, becoming mainly fair later.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
Variable 3 or less.
Sea state
Smooth or slight.
Weather
Showers.
Visibility
Good, occasionally.

Lough Foyle to Carlingford Lough (13)

24 hour forecast:

Wind
Variable, becoming mainly southeast later, 2 to 4.
Sea state
Smooth or slight.
Weather
Occasional rain then showers, perhaps thundery for a time.
Visibility
Moderate or good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Variable 3 or less, increasing 4 at times.
Sea state
Smooth or slight.
Weather
Showers, perhaps thundery for a time.
Visibility
Mainly good.

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

24 hour forecast:

Wind
Variable 2 to 4.
Sea state
Smooth or slight.
Weather
Showers, perhaps thundery for a time.
Visibility
Moderate or good.

Outlook for the following 24 hours:

Wind
Variable, becoming mainly northeasterly later, 2 to 4.
Sea state
Smooth or slight.
Weather
Showers, perhaps thundery.
Visibility
Mainly good.

Mull of Kintyre to Ardnamurchan Point (15)

24 hour forecast:

Wind
Cyclonic 2 to 4, occasionally 5 at first.
Sea state
Smooth or slight, occasionally moderate west of Tiree.
Weather
Rain then showers, perhaps thundery for a time.
Visibility
Moderate or good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming mainly northerly or northeasterly 3 or 4.
Sea state
Smooth or slight, occasionally moderate west of Tiree.
Weather
Showers for a time.
Visibility
Good.

The Minch (16)

Strong winds are forecast

24 hour forecast:

Wind
Northeast 4 to 6.
Sea state
Slight or moderate in north, smooth or slight in south.
Weather
Occasional rain or showers, perhaps thundery for a time.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
Northeasterly 4 or 5, occasionally 6 at first, but variable 3 at times in far south.
Sea state
Slight or moderate in north, smooth or slight in south.
Weather
Showers, occasional rain at first.
Visibility
Moderate or good, occasionally poor at first.

Ardnamurchan Point to Cape Wrath (17)

Strong winds are forecast

24 hour forecast:

Wind
Northeasterly 4 to 6, occasionally variable 3 in far south.
Sea state
Slight or moderate in south, moderate or rough in north.
Weather
Occasional rain or showers, perhaps thundery for a time.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
Northeasterly 4 or 5, occasionally 6 at first, but variable 3 at times in far south.
Sea state
Slight or moderate in south, but in north moderate, occasionally rough at first.
Weather
Showers, occasional rain at first.
Visibility
Moderate or good, occasionally poor at first.

Shetland Isles (18)

Strong winds are forecast

24 hour forecast:

Wind
Easterly or northeasterly 4 to 6, occasionally 3 at first in southeast.
Sea state
Moderate or rough.
Weather
Fog patches, then mainly fair.
Visibility
Moderate or good, occasionally very poor at first.

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

Strong wind warning

Valid Wednesday 12 May 2021 at 0600 UTC until Wednesday 12 May 2021 at 1800 UTC

General situation

Ridge of high pressure will build in from the north during Wednesday

Forecast

Wind
Easterly ot northeasterly 4 to 6 occasionally 3 at first in southeast
Sea state
Moderate or rough
Weather
Fog patches at first then fair
Visibility
Good occasionally very poor at first

Outlook for 12 Hours from 1800 UTC on Wednesday 12 May until 0600 UTC on Thursday 13 May

Wind
Northeast 4 to 6
Sea state
Moderate or rough
Weather
Mainly fair
Visibility
Mainly good

Channel Islands (19)

Strong winds are forecast

24 hour forecast:

Wind
Southerly 3 to 4, backing southeast 4 to 5 this morning, becoming cyclonic 3 to 6 in the afternoon, occasionally 7, then northwest to west 4 to 6 from late evening.
Sea state
Slight with a low swell, increasing moderate to rather rough late afternoon, locally rough.
Weather
Isolated showers rain soon spreading in from the southwest, occasionally heavy, mostly clearing overnight.
Visibility
Moderate to good, occasionally poor.

Outlook for the following 24 hours:

Wind
West to northwest 5 to 6, occasionally 4.
Sea state
Moderate, occasionally rather rough, with a low swell.
Weather
Occasional rain in the north of the area, spreading southwards by evening.
Visibility
Moderate to good, occasionally moderate to poor.

The inshore waters forecast information

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.

Marine forecasts disclaimer

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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