Inshore Waters

Valid

From: Tue 11th May at 12:00 UTC

To: Wed 12th May at 12:00 UTC

Summary

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: 12:00 UTC on 11th May

Regions

From Cape Wrath to Rattray Head including Orkney

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Strong winds warning issued

24 hour forecast:

Wind

Cyclonic 3 to 5, occasionally 6 at first near Rattray Head, then becoming east or northeast later.

Sea State

Moderate or rough at first to the north and west of Orkney, otherwise slight or moderate.

Weather

Rain or showers.

Visibility

Good, occasionally poor.

Outlook for the following 24 hours:

Wind

East or northeast 4 to 6, backing north or northeast 3 or 4 later.

Sea State

Slight or moderate.

Weather

Rain or showers.

Visibility

Good, occasionally poor.

Rattray Head to Berwick on Tweed

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Strong winds warning issued

24 hour forecast:

Wind

Southerly 4 or 5, occasionally 6 at first in north, backing easterly 2 to 4, then northeasterly 4 or 5 later.

Sea State

Slight or moderate, occasionally smooth in Firth of Forth.

Weather

Mainly fair then rain or showers, fog patches later.

Visibility

Moderate or good, occasionally very poor later.

Outlook for the following 24 hours:

Wind

Northeast 3 or 4, occasionally 5 at first, becoming variable 2 at times later.

Sea State

Slight or moderate in north, smooth or slight in south.

Weather

Rain or showers, fog patches.

Visibility

Moderate or good, occasionally very poor.

Berwick on Tweed to Whitby

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24 hour forecast:

Wind

East or southeast 3 or 4, occasionally 5 at first, decreasing 2 at times later.

Sea State

Slight or moderate, becoming slight later.

Weather

Showers for a time, perhaps thundery, fog patches later.

Visibility

Moderate or good, occasionally very poor later.

Outlook for the following 24 hours:

Wind

Southeast 3 or 4 becoming variable 3 or less, then north or northeast 3 or 4 later.

Sea State

Slight.

Weather

Showers for a time at first, perhaps thundery, fog patches.

Visibility

Moderate or good, occasionally very poor.

Whitby to Gibraltar Point

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24 hour forecast:

Wind

Southeast veering south 3 to 5, then becoming variable 2 at times later.

Sea State

Slight.

Weather

Showers for a time at first, perhaps thundery.

Visibility

Good, occasionally moderate at first.

Outlook for the following 24 hours:

Wind

South or southeast 3 or 4 becoming variable 2 or less, then east or northeast 2 to 4 later.

Sea State

Slight.

Weather

Showers for a time at first, perhaps thundery.

Visibility

Good, occasionally moderate.

Gibraltar Point to North Foreland

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24 hour forecast:

Wind

Easterly 2 to 4 veering southerly or southwesterly 3 to 5.

Sea State

Smooth or slight.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally moderate.

Outlook for the following 24 hours:

Wind

Southerly 3 to 5 backing easterly or southeasterly 2 to 4.

Sea State

Smooth or slight.

Weather

Showers, perhaps thundery, then fair.

Visibility

Good, occasionally moderate at first.

North Foreland to Selsey Bill

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Strong winds warning issued

24 hour forecast:

Wind

Southerly or southwesterly 4 or 5, occasionally 3 at first, then increasing 6 at times in west.

Sea State

Slight or moderate in west, smooth or slight in east.

Weather

Showers.

Visibility

Good.

Outlook for the following 24 hours:

Wind

Southerly backing easterly 3 to 5, decreasing 2 for a time at first, then becoming cyclonic later.

Sea State

Slight or moderate at first in west, otherwise smooth or slight.

Weather

Rain or showers.

Visibility

Good, occasionally poor.

Selsey Bill to Lyme Regis

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Strong winds warning issued

24 hour forecast:

Wind

South or southwest 3 or 4, increasing 5 or 6 for a time.

Sea State

Slight or moderate, occasionally rough at first in west.

Weather

Showers.

Visibility

Good.

Outlook for the following 24 hours:

Wind

South becoming variable 2 to 4, then becoming west or northwest 3 to 5.

Sea State

Slight or moderate becoming smooth or slight.

Weather

Rain or showers.

Visibility

Good, occasionally poor.

Lyme Regis to Lands End including the Isles of Scilly

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Strong winds warning issued

24 hour forecast:

Wind

South 5 to 7 veering southwest 4 to 6, becoming variable 2 to 4 later.

Sea State

Slight or moderate at first and again later in east, otehrwise moderate or rough.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind

Variable 3 or less, increasing 4 at times.

Sea State

Slight or moderate in east, moderate throughout in west.

Weather

Showers.

Visibility

Good, occasionally moderate.

Lands End to St Davids Head including the Bristol Channel

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Strong winds warning issued

24 hour forecast:

Wind

Southeast becoming cyclonic then southwest, 4 to 6, then becoming variable 2 to 4 later.

Sea State

Slight or moderate, occasionally rough at first near Cornwall.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind

Variable 3 or less, increasing 4 at times.

Sea State

Slight or moderate in west, smooth or slight in east.

Weather

Showers.

Visibility

Good, occasionally moderate.

St Davids Head to Great Ormes Head, including St Georges Channel

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24 hour forecast:

Wind

South or southeast 3 to 5 becoming variable 2 to 4, then southwest 3 to 5 later.

Sea State

Slight or moderate, but smooth or slight east of Anglesey.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally poor at first.

Outlook for the following 24 hours:

Wind

South or southwest 3 to 5 becoming variable 3 or less.

Sea State

Slight or moderate, but smooth or slight east of Anglesey.

Weather

Showers.

Visibility

Good.

Great Ormes Head to the Mull of Galloway

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24 hour forecast:

Wind

South or southeast 3 to 5 becoming cyclonic 2 to 4, then becoming mainly south or southwest later.

Sea State

Slight or moderate becoming smooth or slight.

Weather

Showers, perhaps thundery.

Visibility

Good, occasionally moderate.

Outlook for the following 24 hours:

Wind

Mainly south or southwest 2 to 4 becoming variable 3 or less.

Sea State

Smooth or slight.

Weather

Showers, but becoming fair for a time.

Visibility

Good, occasionally moderate.

Isle of Man

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24 hour forecast:

Wind

South or southeast 3 to 5 becoming variable 3 or less, then south or southwest 2 to 4 later.

Sea State

Slight or moderate becoming smooth or slight.

Weather

Showers for a time.

Visibility

Good, occasionally moderate for a time.

Outlook for the following 24 hours:

Wind

South or southwest 2 to 4, becoming variable 3 or less later.

Sea State

Smooth or slight.

Weather

Showers later.

Visibility

Good, occasionally moderate later.

Lough Foyle to Carlingford Lough

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Strong winds warning issued

24 hour forecast:

Wind

South backing southeast 4 to 6, then becoming variable 3 or less.

Sea State

Slight or moderate, becoming smooth or slight later.

Weather

Fair then showers, perhaps thundery later.

Visibility

Good, occasionally moderate.

Outlook for the following 24 hours:

Wind

Variable 3 or less becoming east or southeast 2 to 4.

Sea State

Smooth or slight.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally moderate.

The Mull of Galloway to Mull of Kintyre including the Firth of Clyde and the North Channel

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Strong winds warning issued

24 hour forecast:

Wind

Southerly 4 to 6 backing easterly or northeasterly 2 to 4, becoming variable 3 or less later.

Sea State

Slight or moderate becoming smooth or slight.

Weather

Fair then showers, perhaps thundery later.

Visibility

Good, occasionally moderate.

Outlook for the following 24 hours:

Wind

Variable 3 or less becoming easterly or southeasterly 2 to 4.

Sea State

Smooth or slight.

Weather

Showers, perhaps thundery at first, becoming mainly fair.

Visibility

Good, occasionally moderate.

Mull of Kintyre to Ardnamurchan Point

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Strong winds warning issued

24 hour forecast:

Wind

South 4 to 6 backing east 3 to 5, then becoming variable 2 to 4 later.

Sea State

Slight or moderate, becoming smooth or slight later.

Weather

Mainly fair then showers, perhaps thundery later.

Visibility

Good, occasionally moderate later.

Outlook for the following 24 hours:

Wind

Variable becoming east or southeast, 2 to 4.

Sea State

Smooth or slight.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally moderate at first.

The Minch

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Strong winds warning issued

24 hour forecast:

Wind

Cyclonic mainly south 4 to 6 becoming variable 2 to 4, then becoming northeast 3 to 5.

Sea State

Slight or moderate, becoming smooth or slight in south.

Weather

Rain or showers, but becoming fair for a time.

Visibility

Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind

Northeasterly 4 to 6, occasionally variable 3 in south.

Sea State

Slight or moderate in north, smooth or slight in south.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally moderate.

Ardnamurchan Point to Cape Wrath including the Outer Hebrides

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Strong winds warning issued

24 hour forecast:

Wind

Cyclonic 4 to 6 becoming variable 2 to 4 then northeast 3 to 5.

Sea State

Moderate or rough, becoming slight or moderate in south.

Weather

Rain or showers, but becoming fair for a time.

Visibility

Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind

Northeasterly 4 to 6, occasionally variable 3 in south.

Sea State

Moderate or rough until later in north, otherwise slight or moderate.

Weather

Showers, perhaps thundery at first.

Visibility

Good, occasionally moderate.

Shetland Isles

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Strong winds warning issued

24 hour forecast:

Wind

Cyclonic 3 to 5, becoming northeast 4 to 6 later.

Sea State

Moderate or rough, becoming moderate later.

Weather

Occasional rain and fog patches, becoming fair later.

Visibility

Moderate or good, occasionally very poor until later.

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

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Valid Tuesday 11 May 2021 at 1200 UTC until Wednesday 12 May 2021 at 0000 UTC

General situation:

A frontal trough will be slow moving across the area on Tuesday.

Forecast:

Wind

In northwest, northeasterly 4 or 5. in southeast, southerly 3 or 4.

Sea State

Moderate or rough

Weather

Occasional rain. Fog patches.

Visibility

Moderate or good, occasionally very poor

Outlook for 12 Hours from 0000 UTC on Wednesday 12 May until 1200 UTC on Wednesday 12 May:

Wind

Northeasterly 4 to 6, but southerly or southwesterly 2 or 3 at first in southeast

Sea State

Moderate, but rough in north and west at first

Weather

Occasional rain and fog patches at first, becoming fair

Visibility

Moderate or good, occasionally very poor at first

The Channel Islands

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Strong winds warning issued

24 hour forecast:

Wind

South to southwest 3 to 5, increasing 6 to 7 at times until late evening, decreasing 1 to 2 at times after dawn, becoming cyclonic later in the south of the area.

Sea State

Slight to moderate with a low to moderate swell, becoming rather rough to rough from mid afternoon, into the early hours, in the northwest.

Weather

Scattered showers, locally heavy with a risk of hail and thunder, dying out this evening rain from mid morning in the southwest.

Visibility

Good, occasionally moderate, locally poor at first, becoming mainly moderate later in the southwest.

Outlook for the following 24 hours:

Wind

Southerly 2 to 4 at first in the north of the area, otherwise cyclonic 3 to 5, increasing 6 to 7 for a time at first in the south of the area, then becoming variable, mainly west to northwest, 1 to 3.

Sea State

Slight, occasionally smooth, becoming moderate for a time at first in the south a low to moderate swell at first.

Weather

Rain for a time at first, locally heavy, clearing to isolated showers.

Visibility

Moderate to poor, occasionally good, becoming good, locally moderate.

Inshore Waters information supplied by the Met Office on behalf of the Maritime and Coastguard Agency (MCA).

Time displayed in UTC (GMT). When the UK is observing British Summer Time (BST), add an hour. For more information, please see FAQs.