Coast and sea

Inshore waters and strong winds

General situation

A complex area of low pressure will move northeast across the British Isles tonight bringing rain to most areas. A transient ridge is expected tomorrow, before another low moves northeast from the Atlantic, reaching Northern Ireland by Monday and bringing further rain.

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
Cyclonic 2 to 4, becoming northwest 4 or 5, backing southwest 3 or 4, becoming variable later.
Sea state
Smooth or slight, occasionally moderate in far north.
Weather
Rain at first, showers later.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Variable 4 or less, becoming north or northeast 2 to 4.
Sea state
Smooth or slight.
Weather
Showers.
Visibility
Good.

Rattray Head to Berwick upon Tweed (2)

Strong winds are forecast

24 hour forecast:

Wind
Southeast 2 to 4, veering west or northwest 4 to 6, backing southwest 3 to 5 later.
Sea state
Smooth or slight, occasionally moderate in southeast.
Weather
Rain with fog patches at first, showers later.
Visibility
Moderate to very poor becoming good.

Outlook for the following 24 hours:

Wind
Southwest becoming cyclonic, then north later, 2 to 4.
Sea state
Smooth or slight.
Weather
Occasional rain, showers later.
Visibility
Good, occasionally poor.

Berwick upon Tweed to Whitby (3)

Strong winds are forecast

24 hour forecast:

Wind
Southeast 2 to 4, veering northwest 4 to 6, becoming variable 2 or 3 later.
Sea state
Smooth or slight, occasionally moderate in northeast.
Weather
Rain with fog patches at first in north, otherwise showers.
Visibility
Good, but poor or very poor at first in north.

Outlook for the following 24 hours:

Wind
Variable 2 or 3 becoming southeast 3 or 4, veering northwest 4 or 5 later.
Sea state
Smooth or slight.
Weather
Occasional rain, showers later.
Visibility
Good, occasionally poor.

Whitby to Gibraltar Point (4)

24 hour forecast:

Wind
South or southeast 3 or 4, veering northwest 4 or 5, becoming variable 3 or less later.
Sea state
Smooth or slight.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming south 4 or 5, veering west later.
Sea state
Smooth or slight.
Weather
Showers.
Visibility
Good.

Gibraltar Point to North Foreland (5)

24 hour forecast:

Wind
Southerly 3 or 4, veering northwesterly 2 to 4, becoming variable 3 or less later.
Sea state
Smooth, occasionally slight in northeast.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Variable 3 or less, becoming southwesterly 4 or 5.
Sea state
Smooth or slight, becoming moderate in east.
Weather
Mainly fair.
Visibility
Good.

North Foreland to Selsey Bill (6)

24 hour forecast:

Wind
Variable 3 or less, becoming westerly or northwesterly 3 or 4, backing southwesterly 3 to 5 later.
Sea state
Smooth or slight, becoming slight or moderate except in northeast.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Southwesterly 4 or 5, occasionally 3 at first.
Sea state
Slight or moderate, occasionally smooth in northeast.
Weather
Drizzle for a time later.
Visibility
Good, occasionally poor later.

Selsey Bill to Lyme Regis (7)

24 hour forecast:

Wind
Variable 3 or less, becoming northwest, backing southwest later, 4 or 5.
Sea state
Slight, occasionally smooth at first in east, becoming slight or moderate.
Weather
Occasional rain at first.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Southwest 4 or 5.
Sea state
Slight or moderate.
Weather
Occasional drizzle.
Visibility
Good, occasionally poor.

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

Strong winds are forecast

24 hour forecast:

Wind
Cyclonic 4 to 6, becoming northwest 3 to 5, backing southwest 4 to 6 later.
Sea state
Slight or moderate, occasionally smooth in lyme bay and rough at first in far west.
Weather
Occasional rain at first, perhaps thundery, showers later.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Southwest 4 to 6, veering west 4 or 5, backing southwest 3 to 5 later.
Sea state
Slight or moderate, occasionally smooth in lyme bay and rough in far west.
Weather
Rain or 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 4 to 6, backing west 3 or 4, then southwest 4 to 6 later.
Sea state
Slight or moderate, occasionally smooth at first in east and rough in southwest.
Weather
Occasional rain at first, showers later.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Southwest veering west, 4 to 6, backing southwest 3 or 4 later.
Sea state
Slight or moderate, occasionally rough in west.
Weather
Drizzle at times.
Visibility
Good, occasionally poor.

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

Strong winds are forecast

24 hour forecast:

Wind
West or southwest 3 or 4, veering northwest 4 to 6, backing southwest 3 or 4, increasing 4 to 6 later.
Sea state
Smooth or slight, becoming slight or moderate.
Weather
Occasional rain at first, showers later.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Southwest 4 to 6, veering west 3 or 4, backing southwest later.
Sea state
Slight or moderate.
Weather
Rain or drizzle, showers later.
Visibility
Good, occasionally poor.

Great Orme Head to the Mull of Galloway (11)

Strong winds are forecast

24 hour forecast:

Wind
Variable 4 or less, becoming northwest 4 to 6, backing southwest 3 or 4 later.
Sea state
Smooth or slight.
Weather
Occasional rain at first, showers later.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Southwest 3 or 4, backing south 4 to 6, veering northwest 4 or 5 later.
Sea state
Smooth or slight, becoming slight or moderate.
Weather
Rain or drizzle, showers later.
Visibility
Good, occasionally poor.

Isle of Man (12)

Strong winds are forecast

24 hour forecast:

Wind
West 2, quickly veering northwest 5 or 6, decreasing west 3 or 4, gradually backing south 4 or 5 later.
Sea state
Slight, building moderate for a time.
Weather
Rain, drizzle and mist clearing, becoming fair.
Visibility
Moderate or poor, improving good.

Outlook for the following 24 hours:

Wind
South 4 or 5, increasing 5 or 6, veering southwest 4 or 5, then veering west later.
Sea state
Slight, building slight or moderate.
Weather
Fair, then rain and drizzle developing.
Visibility
Good, then falling moderate or poor in rain and drizzle.

Lough Foyle to Carlingford Lough (13)

Strong winds are forecast

24 hour forecast:

Wind
Northwest 4 to 6, backing southwest 3 to 5, becoming variable 4 or less later.
Sea state
Smooth or slight, occasionally moderate at first in north.
Weather
Occasional rain then showers, further rain later.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Variable 4 or less, becoming cyclonic 4 to 6, then northwest 3 to 5 later.
Sea state
Smooth or slight, becoming slight or moderate for a time.
Weather
Rain or drizzle, showers later.
Visibility
Good, occasionally 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 4 to 6, backing southwesterly 3 or 4.
Sea state
Smooth or slight, occasionally moderate at first near Mull of Kintyre.
Weather
Occasional rain then showers, further rain later.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Southwesterly 3 or 4, becoming cyclonic, then northwesterly, 3 to 5.
Sea state
Smooth or slight, becoming slight or moderate for a time.
Weather
Rain or drizzle, showers later.
Visibility
Good, occasionally poor.

Mull of Kintyre to Ardnamurchan Point (15)

24 hour forecast:

Wind
Northwest backing southwest, 3 to 5, becoming variable 4 or less later.
Sea state
Slight or moderate.
Weather
Occasional rain then showers, rain later in south.
Visibility
Good, occasionally poor.

Outlook for the following 24 hours:

Wind
Variable 4 or less, becoming northeast 3 or 4, backing northwest 4 or 5 later.
Sea state
Slight or moderate.
Weather
Rain or drizzle, showers later.
Visibility
Good, occasionally poor.

The Minch (16)

24 hour forecast:

Wind
West or southwest 3 to 5, decreasing 2 or 3 later.
Sea state
Smooth or slight, occasionally moderate in south.
Weather
Occasional rain then showers, perhaps thundery at first.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Southwest 2 or 3, becoming variable 3 or less, then north or northwest 2 to 4 later.
Sea state
Smooth or slight, occasionally moderate in south.
Weather
Showers at first.
Visibility
Good.

Ardnamurchan Point to Cape Wrath (17)

24 hour forecast:

Wind
West or southwest 3 to 5, decreasing 2 or 3 later.
Sea state
Moderate, occasionally slight in northeast.
Weather
Occasional rain then showers, perhaps thundery at first.
Visibility
Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind
Southwest 2 or 3, becoming variable 3 or less, then north or northwest 2 to 4 later.
Sea state
Slight or moderate.
Weather
Showers at first.
Visibility
Good.

Shetland Isles (18)

24 hour forecast:

Wind
Southeast 3 to 5, veering west, backing southwest later.
Sea state
Slight or moderate.
Weather
Occasional rain and drizzle with fog patches, becoming fair later.
Visibility
Moderate or good, occasionally very poor, then becoming good later.

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

Valid Saturday 20 Jul 2024 at 1800 UTC until Sunday 21 Jul 2024 at 0600 UTC

General situation

Low pressure centred Faeroe Islands will be slow moving. Associated trough will move east across Shetland Waters on Sunday morning.

Forecast

Wind
Southerly or southeasterly 3 to 5, occasionally 6 later in far east. veering westerly later in west
Sea state
Slight or moderate
Weather
Rain or showers. Fog patches.
Visibility
Moderate or good, occasionally poor or very poor

Outlook for 12 Hours from 0600 UTC on Sunday 21 Jul until 1800 UTC on Sunday 21 Jul

Wind
West or southwest 3 to 5, but south or southeasterly 4 to 6 at first in east
Sea state
Slight or moderate
Weather
Rain then mainly fair. Fog patches at first in east.
Visibility
Moderate or good, occasionally poor or very poor at first

Channel Islands (19)

24 hour forecast:

Wind
South to southwest 2 to 4, becoming briefly cyclonic, then northwest by midnight, increasing 3 to 5 in the morning, backing west towards evening.
Sea state
Smooth to slight with a low swell, increasing slight to moderate soon after dawn.
Weather
Rain or showers, with a risk of thunder at first, becoming light and patchy overnight, clearing southwards in the morning mist or fog patches until dawn.
Visibility
Good, occasionally moderate, locally poor or very poor.

Outlook for the following 24 hours:

Wind
West 3 to 5, backing southwest overnight, perhaps briefly 6 mid-channel around dawn, becoming variable 1 to 3 near brittany coast late afternoon.
Sea state
Slight to moderate, perhaps rather rough mid-channel around dawn.
Weather
Fair or cloudy until dawn then patchy drizzle spreading in from the west, with mist and risk of fog patches.
Visibility
Good, occasionally moderate, locally poor or perhaps very poor from dawn.

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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