Inshore Waters
Valid
From: Sat 15th May at 00:00 UTC
To: Sun 16th May at 00:00 UTC
Summary
An Atlantic low arrives into the Southwest Approaches on Saturday and loses its identity over southern England on Sunday, maintaining unsettled conditions through the weekend, especially in the south.
Issued at: 00:01 UTC on 15th May
Regions
From Cape Wrath to Rattray Head including Orkney
Back to Top24 hour forecast:
Wind
Northeast 3 or 4, backing northwest, occasionally variable for a time, 2 to 4.
Sea State
Slight or moderate.
Weather
Showers, rain later.
Visibility
Good, occasionally moderate later.
Outlook for the following 24 hours:
Wind
Variable 2 to 4.
Sea State
Slight or moderate.
Weather
Rain or drizzle, fog patches near Orkney.
Visibility
Moderate or good, occasionally very poor.
Rattray Head to Berwick on Tweed
Back to Top24 hour forecast:
Wind
Variable, becoming south or southeast, 2 to 4.
Sea State
Slight or moderate, but smooth or slight in Firth of Forth.
Weather
Rain later in north.
Visibility
Good, occasionally moderate later.
Outlook for the following 24 hours:
Wind
South or southeast, 2 to 4.
Sea State
Slight or moderate, but smooth or slight in Firth of Forth.
Weather
Rain or drizzle at first.
Visibility
Good, occasionally poor at first.
Berwick on Tweed to Whitby
Back to Top24 hour forecast:
Wind
Variable 3 or less, becoming southeast, 3 or 4.
Sea State
Slight or moderate.
Weather
Fair.
Visibility
Good.
Outlook for the following 24 hours:
Wind
East or southeast, 2 to 4.
Sea State
Slight or moderate.
Weather
Showers at first.
Visibility
Good.
Whitby to Gibraltar Point
Back to Top24 hour forecast:
Wind
South or southeast, 2 to 4.
Sea State
Moderate in north, slight in south.
Weather
Showers.
Visibility
Good.
Outlook for the following 24 hours:
Wind
South, veering southwest, then becoming variable, 2 to 4.
Sea State
Moderate in north, slight in south.
Weather
Thundery showers, fair later.
Visibility
Good, occasionally poor until later.
Gibraltar Point to North Foreland
Back to Top24 hour forecast:
Wind
Variable, mainly southerly, 3 or 4, decreasing 2 at times.
Sea State
Smooth or slight.
Weather
Occasional rain or showers.
Visibility
Moderate or good, occasionally poor.
Outlook for the following 24 hours:
Wind
Variable 2 to 4, becoming southwesterly 3 to 5.
Sea State
Smooth or slight, occasionally moderate later in south.
Weather
Thundery showers.
Visibility
Good, occasionally poor.
North Foreland to Selsey Bill
Back to Top24 hour forecast:
Wind
Variable 2 to 4, becoming southwesterly 4 to 6 later.
Sea State
Smooth or slight, becoming slight or moderate.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.
Outlook for the following 24 hours:
Wind
Westerly or southwesterly 4 to 6.
Sea State
Slight or moderate, occasionally rough later in south.
Weather
Thundery showers.
Visibility
Good, occasionally poor.
Selsey Bill to Lyme Regis
Back to Top24 hour forecast:
Wind
South 2 to 4, veering southwest 4 or 5, occasionally 6 later.
Sea State
Smooth or slight, becoming slight or moderate.
Weather
Rain then showers.
Visibility
Moderate or good, occasionally poor at first.
Outlook for the following 24 hours:
Wind
West or southwest 4 to 6.
Sea State
Slight or moderate, becoming moderate or rough later.
Weather
Thundery showers.
Visibility
Good, occasionally poor.
Lyme Regis to Lands End including the Isles of Scilly
Back to Top24 hour forecast:
Wind
South veering west or southwest, 4 to 6.
Sea State
Slight or moderate, occasionally rough later in west.
Weather
Rain then showers, perhaps thundery.
Visibility
Good, occasionally poor.
Outlook for the following 24 hours:
Wind
Southwest veering west, 4 to 6, occasionally 7 later.
Sea State
Moderate or rough, occasionally very rough in west.
Weather
Thundery showers.
Visibility
Good, occasionally poor.
Lands End to St Davids Head including the Bristol Channel
Back to Top24 hour forecast:
Wind
South or southeast, veering west or southwest, 4 to 6.
Sea State
Slight or moderate, occasionally rough later in west.
Weather
Rain then showers, perhaps thundery.
Visibility
Moderate or good, occasionally poor.
Outlook for the following 24 hours:
Wind
West or southwest 4 to 6, becoming variable 2 or 3 for a time in Bristol Channel.
Sea State
Moderate or rough, occasionally very rough near Lands End.
Weather
Thundery showers.
Visibility
Good, occasionally poor.
St Davids Head to Great Ormes Head, including St Georges Channel
Back to Top24 hour forecast:
Wind
Southeast 4 to 6, veering southwest, 3 to 5.
Sea State
Smooth or slight, becoming slight or moderate.
Weather
Rain then showers.
Visibility
Good, occasionally moderate.
Outlook for the following 24 hours:
Wind
Southwest, 3 to 5, becoming variable, 2 to 4.
Sea State
Slight or moderate in south, smooth or slight in north, occasionally rough near St Davids Head.
Weather
Showers, perhaps thundery at times.
Visibility
Good, occasionally poor.
Great Ormes Head to the Mull of Galloway
Back to Top24 hour forecast:
Wind
East or southeast 2 to 4, occasionally 5 at first.
Sea State
Smooth or slight.
Weather
Rain or showers, perhaps thundery.
Visibility
Good, occasionally moderate or poor.
Outlook for the following 24 hours:
Wind
East or southeast, 3 to 5, becoming variable 3 or less, then northwest, 2 or 3 later.
Sea State
Smooth or slight.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.
Isle of Man
Back to Top24 hour forecast:
Wind
Southeast, 3 to 5.
Sea State
Smooth or slight, occasionally moderate later.
Weather
Rain or showers, perhaps thundery.
Visibility
Good, occasionally moderate or poor.
Outlook for the following 24 hours:
Wind
Southeast, 3 or 4, becoming variable 3 or less, then northwest, 4 or 5 later.
Sea State
Smooth or slight.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.
Lough Foyle to Carlingford Lough
Back to Top24 hour forecast:
Wind
East or southeast, 4 or 5, decreasing 2 or 3 later.
Sea State
Smooth or slight.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.
Outlook for the following 24 hours:
Wind
Variable 2 to 4, becoming northwest, 4 or 5 later.
Sea State
Smooth or slight.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.
The Mull of Galloway to Mull of Kintyre including the Firth of Clyde and the North Channel
Back to Top24 hour forecast:
Wind
Easterly or southeasterly 3 or 4, becoming variable 2 to 4 later.
Sea State
Smooth or slight.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.
Outlook for the following 24 hours:
Wind
Variable 2 to 4, becoming northwesterly 4 or 5 later.
Sea State
Smooth or slight.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.
Mull of Kintyre to Ardnamurchan Point
Back to Top24 hour forecast:
Wind
East or southeast, 3 to 5, becoming variable, 2 to 4 later.
Sea State
Smooth or slight, becoming slight or moderate later.
Weather
Showers.
Visibility
Good.
Outlook for the following 24 hours:
Wind
Variable, 2 to 4, becoming northwest, 3 to 5 later.
Sea State
Slight or moderate.
Weather
Showers.
Visibility
Good.
The Minch
Back to Top24 hour forecast:
Wind
East or northeast, 3 to 5.
Sea State
Smooth or slight, occasionally moderate in north.
Weather
Showers.
Visibility
Good.
Outlook for the following 24 hours:
Wind
North or northeast 3 to 5, becoming variable 2 to 4 later.
Sea State
Smooth or slight, occasionally moderate in north.
Weather
Showers.
Visibility
Good.
Ardnamurchan Point to Cape Wrath including the Outer Hebrides
Back to Top24 hour forecast:
Wind
East or northeast, 3 to 5.
Sea State
Slight or moderate.
Weather
Showers.
Visibility
Good.
Outlook for the following 24 hours:
Wind
North or northeast 3 to 5, becoming variable 2 to 4 later.
Sea State
Slight or moderate, occasionally rough in west.
Weather
Showers.
Visibility
Good.
Shetland Isles
Back to Top24 hour forecast:
Wind
North 4 or 5, becoming cyclonic 3 or less.
Sea State
Moderate or rough, occasionally slight in shelter.
Weather
Showers, fog patches.
Visibility
Moderate or good, occasionally very poor.
For Coastal areas up to 60 nautical miles from Lerwick, Shetland
Back to TopValid Saturday 15 May 2021 at 0000 UTC until Saturday 15 May 2021 at 1200 UTC
General situation:
A shallow low will move west across Shetland waters on Saturday.
Forecast:
Wind
North 4 or 5 becoming cyclonic 3 or less
Sea State
Moderate or rough, but slight just to southwest of shetland.
Weather
Showers, fog patches.
Visibility
Moderate or good, occasionally very poor.
Outlook for 12 Hours from 1200 UTC on Saturday 15 May until 0000 UTC on Sunday 16 May:
Wind
Cyclonic 3 or less
Sea State
Moderate, but rough in far northwest, and smooth or slight in sheltered coastal waters.
Weather
Showers, fog patches.
Visibility
Moderate or good, occasionally very poor.
The Channel Islands
Back to Top24 hour forecast:
Wind
South to southeast 4 to 5, perhaps locally 6, veering to southwest to west around dawn, occasionally 6 until noon.
Sea State
Slight with a low swell, increasing moderate to rather rough by noon.
Weather
Rain, locally heavy, clearing eastward by dawn, then scattered showers, locally heavy, becoming less frequent from noon.
Visibility
Moderate to good, locally poor, becoming good, locally moderate.
Outlook for the following 24 hours:
Wind
Southwest 4 to 6, locally 7 by noon, veering west by dusk.
Sea State
Slight to moderate with a low to moderate swell in the southeast to rather rough to rough in the northwest, increasing rather rough to very rough during the afternoon.
Weather
Scattered showers, locally heavy, becoming more frequent from late morning.
Visibility
Good, locally moderate.
Inshore Waters information supplied by the Met Office on behalf of the Maritime and Coastguard Agency (MCA).
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