Coast and sea

Inshore waters and strong winds

General situation

A ridge of high pressure across the south will decline as active Atlantic fronts move over northern and some western areas. These fronts will tend to weaken as they drift east later on Wednesday.

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 3 to 5, backing southerly or southeasterly 4 to 6 for a time, occasionally 7 for a time near Rattray Head.
Sea state
Moderate, occasionally slight west and north of Orkney, otherwise smooth or slight, becoming moderate or rough in far east.
Weather
Showers then rain at times.
Visibility
Good, occasionally poor later.

Outlook for the following 24 hours:

Wind
Southwest 4 or 5, occasionally 6 at first, veering west 3 or 4 later.
Sea state
Slight or moderate, occasionally rough at first in far east, becoming smooth in Moray Firth.
Weather
Occasional rain or drizzle.
Visibility
Moderate or good, occasionally poor in north.

Rattray Head to Berwick upon Tweed (2)

Strong winds are forecast

24 hour forecast:

Wind
Southwest 3 or 4, backing south 5 to 7, then veering southwest 5 or 6 later.
Sea state
Smooth or slight, becoming slight or moderate, then occasionally rough later in north.
Weather
Fair then rain at times.
Visibility
Good, occasionally moderate later.

Outlook for the following 24 hours:

Wind
South or southwest 5 or 6, decreasing 3 or 4 later.
Sea state
Rough at first near Rattray Head, otherwise moderate, becoming mainly slight later.
Weather
Occasional rain.
Visibility
Good, occasionally moderate.

Berwick upon Tweed to Whitby (3)

Strong winds are forecast

24 hour forecast:

Wind
South or southwest 3 or 4, increasing 5 to 7.
Sea state
Smooth, becoming slight or moderate.
Weather
Fair then occasional rain.
Visibility
Good, occasionally moderate later.

Outlook for the following 24 hours:

Wind
South or southwest 5 or 6, decreasing 3 or 4 later.
Sea state
Slight or moderate, becoming smooth or slight later.
Weather
Occasional rain.
Visibility
Good, occasionally moderate.

Whitby to Gibraltar Point (4)

Strong winds are forecast

24 hour forecast:

Wind
Southwest 3 or 4, backing south 5 or 6.
Sea state
Smooth, becoming slight, occasionally moderate later.
Weather
Fair, then occasional rain in north.
Visibility
Good, occasionally moderate later in north.

Outlook for the following 24 hours:

Wind
South or southwest 5 or 6, decreasing 4 later.
Sea state
Slight, occasionally moderate until later.
Weather
Occasional rain, mainly in north.
Visibility
Good, occasionally moderate in north.

Gibraltar Point to North Foreland (5)

Strong winds are forecast

24 hour forecast:

Wind
Variable 2 to 4, becoming southerly or southwesterly 4 to 6.
Sea state
Smooth, becoming slight or moderate.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southerly or southwesterly, 4 or 5, occasionally 6 until later.
Sea state
Slight or moderate, occasionally smooth in later in shelter.
Weather
Mainly fair.
Visibility
Good.

North Foreland to Selsey Bill (6)

Strong winds are forecast

24 hour forecast:

Wind
Variable 2 to 4, becoming southwesterly 4 or 5, occasionally 6 later in east.
Sea state
Slight, occasionally smooth until later.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwesterly 4 or 5, occasionally 6 at first in east, backing southerly 3 or 4 later.
Sea state
Mainly slight.
Weather
Fair.
Visibility
Good.

Selsey Bill to Lyme Regis (7)

24 hour forecast:

Wind
Northwest 3 or 4, backing southwest 3 to 5.
Sea state
Slight, occasionally smooth, then occasionally moderate later.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwest 4 or 5, occasionally 3 later.
Sea state
Slight, occasionally moderate.
Weather
Occasional drizzle.
Visibility
Good, occasionally moderate in west.

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

Strong winds are forecast

24 hour forecast:

Wind
Northwest 3 or 4, backing southwest 4 or 5, occasionally 6 later.
Sea state
Smooth or slight, becoming mainly moderate.
Weather
Occasional rain later.
Visibility
Mainly good.

Outlook for the following 24 hours:

Wind
Southerly or southwesterly 4 to 6, decreasing 3 or 4 later.
Sea state
Moderate, occasionally slight in Lyme Bay, but occasionally rough for a time west of The Lizard.
Weather
Occasional drizzle.
Visibility
Good, occasionally poor.

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

Strong winds are forecast

24 hour forecast:

Wind
Northwest 3 or 4, backing southwest 4 to 6, occasionally 7 near pembrokeshire.
Sea state
Slight becoming moderate, occasionally rough near Pembrokeshire.
Weather
Occasional rain later.
Visibility
Mainly good.

Outlook for the following 24 hours:

Wind
South or southwest 4 to 6, occasionally 7 near Pembrokeshire, decreasing 3 or 4 later.
Sea state
Moderate, occasionally rough.
Weather
Occasional drizzle.
Visibility
Good, occasionally poor.

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

Strong winds are forecast

24 hour forecast:

Wind
Southwest 3 to 5, increasing 6 or 7, occasionally gale 8 later near Anglesey.
Sea state
Slight, becoming moderate or rough.
Weather
Fair then occasional rain.
Visibility
Good, occasionally moderate later.

Outlook for the following 24 hours:

Wind
Southerly or southwesterly 6 or 7, occasionally gale 8 near Anglesey, decreasing 3 or 4 later.
Sea state
Moderate, occasionally rough, becoming slight east of Anglesey.
Weather
Occasional rain or drizzle.
Visibility
Moderate or good, occasionally poor.

Great Orme Head to the Mull of Galloway (11)

Strong winds are forecast

24 hour forecast:

Wind
Southerly or southwesterly 3 or 4, increasing 5 to 7, occasionally gale 8 for a time in west.
Sea state
Smooth or slight, becoming moderate or rough.
Weather
Fair then occasional rain.
Visibility
Good, occasionally poor later.

Outlook for the following 24 hours:

Wind
South or southwest 5 to 7, veering west 4 or 5 later.
Sea state
Moderate or rough, becoming slight, occasionally moderate later.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

Isle of Man (12)

Strong winds are forecast

24 hour forecast:

Wind
South or southwest 3 to 5, increasing 6 or 7, then occasionally 5 later.
Sea state
Slight, becoming moderate or rough.
Weather
Fair then rain.
Visibility
Good, becoming moderate or poor.

Outlook for the following 24 hours:

Wind
South or southwest 5 to 7, decreasing 4 or 5 later.
Sea state
Moderate, occasionally rough until later.
Weather
Occasional rain or drizzle.
Visibility
Moderate or good, occasionally poor.

Lough Foyle to Carlingford Lough (13)

Strong winds are forecast

24 hour forecast:

Wind
Southerly 3 or 4, increasing 6 or 7, occasionally gale 8 for a time in east, then veering southwesterly 4 to 6 later.
Sea state
Slight at first in east and later in shelter, otherwise moderate, occasionally rough.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
South or southwest 4 to 6, veering west 3 or 4 later.
Sea state
Slight or moderate, occasionally rough until later in southeast.
Weather
Occasional rain, fair later.
Visibility
Moderate or good, occasionally poor until later.

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 3 or 4, increasing 6 or 7, occasionally gale 8 for a time, then veering southwesterly 4 or 5 later.
Sea state
Smooth or slight, becoming moderate, occasionally rough for a time in south.
Weather
Fair then rain.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southerly or southwesterly 4 or 5, increasing 6 at times, veering westerly 3 later.
Sea state
Slight or moderate, occasionally rough for a time in south.
Weather
Rain until later.
Visibility
Moderate or poor, occasionally good later.

Mull of Kintyre to Ardnamurchan Point (15)

Strong winds are forecast

24 hour forecast:

Wind
South 3 or 4, increasing 6 or 7, veering southwest 4 to 6 later.
Sea state
Slight at first in shelter, otherwise moderate or rough.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southwest 3 to 5, occasionally 6 at first.
Sea state
Rough at first offshore, otherwise moderate, occasionally slight later in shelter.
Weather
Occasional rain or drizzle, frontal.
Visibility
Moderate or poor, occasionally good later.

The Minch (16)

Strong winds are forecast

24 hour forecast:

Wind
Southwest 4 or 5, backing south or southeast 6 to gale 8 for a time.
Sea state
Slight or moderate, occasionally rough for a time in far south.
Weather
Rain at times, fog patches later.
Visibility
Moderate or good, occasionally poor, but occasionally very poor later.

Outlook for the following 24 hours:

Wind
Southwest 4 or 5.
Sea state
Slight or moderate, becoming smooth later in central areas.
Weather
Occasional rain or drizzle with fog patches until later.
Visibility
Moderate, occasionally very poor, becoming good later.

Ardnamurchan Point to Cape Wrath (17)

Strong winds are forecast

24 hour forecast:

Wind
Southwest 4 or 5, backing south or southeast 6 to gale 8 for a time.
Sea state
Moderate, occasionally rough south and west of the Outer Hebrides.
Weather
Rain at times, fog patches later.
Visibility
Moderate or good, occasionally poor, but occasionally very poor later.

Outlook for the following 24 hours:

Wind
Southwest 4 or 5.
Sea state
Mainly moderate.
Weather
Occasional rain or drizzle with fog patches until later.
Visibility
Moderate, occasionally very poor, becoming good later.

Shetland Isles (18)

Strong winds are forecast

24 hour forecast:

Wind
Southwesterly backing southerly or southeasterly, 4 or 5, increasing 6 or 7, then becoming cyclonic 4 or 5 later in southwest.
Sea state
Moderate or rough, but occasionally slight until later east of Shetland.
Weather
Showers, rain later, fog patches later in west.
Visibility
Moderate or good, occasionally poor, then occasionally very poor later in west.

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

Valid Tuesday 04 Aug 2020 at 0000 UTC until Tuesday 04 Aug 2020 at 1200 UTC

General situation

A developing Atlantic low will become centred to the south of Iceland on Tuesday with the associated weather fronts pushing into Shetland waters.

Forecast

Wind
Southwesterly backing southerly or southeasterly, 4 or 5
Sea state
Moderate, but slight east of Shetland
Weather
Showers
Visibility
Mainly good

Outlook for 12 Hours from 1200 UTC on Tuesday 04 Aug until 0000 UTC on Wednesday 05 Aug

Wind
Southerly or southeasterly 4 or 5 increasing 6 or 7, becoming cyclonic 4 or 5 later in southwest
Sea state
Moderate or rough, but slight at first east of Shetland
Weather
Rain. Mist or fog patches later in west
Visibility
Moderate or good, occasionally poor. Very poor at times later in west.

Channel Islands (19)

24 hour forecast:

Wind
Northwest 2 to 3, locally 4, backing west to southwest by midday, and then in the north of the area backing southwest 4 to 5 during the afternoon, whilst in the far south becoming variable 1 to 3.
Sea state
Slight, occasionally smooth in the south, increasing moderate in the northwest during the evening, with a low swell.
Weather
Fair or fine.
Visibility
Good or very good.

Outlook for the following 24 hours:

Wind
Southwest 3 to 5, locally variable 1 to 2 south of Jersey, then generally becoming south to southwest 3 to 4 by dawn.
Sea state
Slight, occasionally moderate in the northwest, locally smooth in southeast, with a low swell.
Weather
Risk of patchy drizzle and mist in the northwest of the area.
Visibility
Good, perhaps locally moderate or poor in the northwest.

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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