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Inshore waters

Issued by the Met Office at 1800 UTC on Wednesday 15 August 2018

Inshore Waters Forecast to 12 miles offshore
for the period 1800 UTC Wednesday 15 August to 1800 UTC Thursday 16 August 2018

General situation

High pressure to the south and low to the north will maintain a moist westerly or southwesterly flow over the inshore waters of the United Kingdom. A cold front will edge south bringing a spell of rain to many places, followed by showers from the northwest.

Cape Wrath to Rattray Head including Orkney - Strong wind warning

24 hour forecast: South or southwest 4 or 5, increasing 6 at times, occasionally 7 at first near Cape Wrath. Slight or moderate, occasionally rough in far northwest. Showers, perhaps thundery later. Good, occasionally moderate.

Outlook for the following 24 hours: South or southwest 5 or 6. Slight or moderate, occasionally rough in far northwest and west of Orkney. Showers. Good.

Rattray Head to Berwick upon Tweed - Strong wind warning

24 hour forecast: Southwest 4 or 5, increasing 6 at times. Slight, but moderate near Rattray Head for a time. Showers. Good, occasionally moderate.

Outlook for the following 24 hours: South or southwest 5 or 6. Slight or moderate. Showers for a time. Good.

Berwick upon Tweed to Whitby - Strong wind warning

24 hour forecast: Southwest 4 or 5, increasing 6 at times. Slight. Showers, but rain at first in south. Good, occasionally moderate.

Outlook for the following 24 hours: West or southwest, 4 or 5, occasionally 6 later, but decreasing 3 for a time. Slight. Showers at first. Moderate or good.

Whitby to Gibraltar Point - Strong wind warning

24 hour forecast: Southwest 4 or 5, increasing 6 for a time. Slight. Occasional rain. Good, occasionally poor.

Outlook for the following 24 hours: West or southwest 4 or 5, decreasing 3 for a time. Smooth or slight. Mainly fair. Good.

Gibraltar Point to North Foreland - Strong wind warning

24 hour forecast: Southwesterly veering westerly later, 4 or 5, increasing 6 for a time. Slight, occasionally moderate for a time in south. Rain later. Good, occasionally moderate later.

Outlook for the following 24 hours: Westerly 4 or 5, decreasing 3 for a time. Smooth or slight. Occasional rain at first in south, then mainly fair. Good, occasionally moderate at first in south.

North Foreland to Selsey Bill - Strong wind warning

24 hour forecast: Southwesterly veering westerly later, 4 or 5, increasing 6 for a time. Slight, occasionally moderate for a time. Mainly fair, then occasional rain later. Good, occasionally moderate later.

Outlook for the following 24 hours: Westerly or northwesterly, 4 or 5, decreasing 3 for a time. Smooth or slight. Occasional rain at first, then mainly fair. Good, occasionally moderate at first.

Selsey Bill to Lyme Regis - Strong wind warning

24 hour forecast: West or southwest 4 or 5, occasionally 6 for a time. Slight, occasionally moderate at first in east. Rain for a time later. Good, occasionally moderate later.

Outlook for the following 24 hours: West or northwest 4 or 5, decreasing 3 for a time. Slight. Mainly fair. Good.

Lyme Regis to Lands End including the Isles of Scilly - Strong wind warning

24 hour forecast: Southwest 4 or 5, occasionally 6 for a time, veering west 4 or 5. Slight, becoming moderate west of Start Point. Rain for a time, then mainly fair later. Good, but moderate or poor for a time.

Outlook for the following 24 hours: West or northwest 4 or 5, decreasing 3 for a time. Slight, but mainly moderate west of Start Point. Mainly fair. Good.

Lands End to St Davids Head including the Bristol Channel - Strong wind warning

24 hour forecast: Southwest 5 or 6, veering west 4 or 5. Moderate. Rain then showers. Good, but moderate or poor for a time.

Outlook for the following 24 hours: West 4 or 5, occasionally 6 later. Moderate. Showers. Good.

St Davids Head to Great Orme Head, including St Georges Channel - Strong wind warning

24 hour forecast: Southwest 5 or 6, occasionally 7 at first, veering west 4 or 5. Moderate, occasionally rough at first off Anglesey. Rain then showers. Good, but moderate or poor for a time.

Outlook for the following 24 hours: West or southwest 4 or 5, occasionally 6 later. Mostly slight, occasionally moderate later. Occasional rain later. Good, occasionally moderate later.

Great Orme Head to the Mull of Galloway - Strong wind warning

24 hour forecast: Southwest 5 to 7, veering west 5 or 6, decreasing 4 for a time. Moderate, becoming slight. Rain then showers. Moderate or good.

Outlook for the following 24 hours: West or southwest 4 or 5, increasing 6 or 7 later. Slight, becoming moderate later. Showers then rain. Good, occasionally moderate or poor later.

Isle of Man - Strong wind warning

24 hour forecast: Southwest 5 to 7, veering west 5 or 6, decreasing 4 for a time. Moderate, occasionally rough at first. Showers, but fair for a time. Moderate or good.

Outlook for the following 24 hours: West or southwest 4 or 5, occasionally 6 later. Slight, occasionally moderate later. Showers then rain. Good, occasionally moderate or poor later.

Lough Foyle to Carlingford Lough - Strong wind warning

24 hour forecast: Southwest veering west 5 or 6, decreasing 4 for a time. Slight or moderate, but rough in far northwest. Showers. Good, occasionally moderate.

Outlook for the following 24 hours: West or southwest 4 or 5, occasionally 6 later. Slight or moderate, but rough in far northwest. Showers then rain. Good, occasionally moderate or poor later.

Mull of Galloway to Mull of Kintyre including the Firth of Clyde and North Channel - Strong wind warning

24 hour forecast: Southwesterly veering westerly 5 or 6, decreasing 4 for a time. Moderate, occasionally rough near Mull of Kintyre, but mostly slight in Firth of Clyde. Showers, perhaps thundery for a time. Good, occasionally moderate.

Outlook for the following 24 hours: West or southwest 4 or 5, occasionally 6 at times. Moderate or rough, occasionally slight in Firth of Clyde. Showers then rain. Good, occasionally moderate or poor later.

Mull of Kintyre to Ardnamurchan Point - Strong wind warning

24 hour forecast: Southwest veering west 5 or 6, occasionally 7 for a time. Moderate or rough. Showers, thundery for a time. Good, occasionally moderate.

Outlook for the following 24 hours: West or southwest 4 or 5, occasionally 6 at times. Moderate or rough. Showers then rain. Good, occasionally moderate or poor later.

The Minch - Strong wind warning

24 hour forecast: Southwest 5 to 7, decreasing 4 for a time. Slight or moderate, occasionally rough at first in far south. Showers, thundery for a time. Good, occasionally moderate.

Outlook for the following 24 hours: West or southwest 4 or 5, increasing 6 at times. Slight or moderate. Showers then rain. Good, occasionally moderate or poor later.

Ardnamurchan Point to Cape Wrath - Strong wind warning

24 hour forecast: Southwest veering west, 5 to 7. Moderate or rough. Showers, thundery for a time. Good, occasionally moderate or poor.

Outlook for the following 24 hours: West or southwest 4 or 5, increasing 6 or 7. Moderate or rough. Showers then rain. Good, occasionally moderate or poor later.

Shetland Isles - Strong wind warning

24 hour forecast: South or southwest 5 or 6, decreasing 4 at times. Slight or moderate, but rough in far west. Rain then showers. Moderate or good, occasionally poor in rain.

Channel Islands - Strong wind warning

24 hour forecast: Southwest to west 3 to 4, locally variable 1 to 3 south of jersey until 3am, then southwest 4 to 5 overnight, perhaps locally 6 mid channel around dawn, veering west 3 to 4 by midday, then northwest 4 to 5 through the afternoon. Smooth or slight in the south and east, and slight increasing moderate in the north and west of the area overnight. Outbreaks of rain, locally heavy with mist or fog spreading in from the west through the morning, clearing from the west through the afternoon. Mainly good, becoming moderate to poor or very poor in the morning, becoming good again from the west through the afternoon.

Outlook for the following 24 hours: West to northwest 3 to 4, occasionally 5 on Thursday evening and overnight, backing west to southwest through Friday. Slight to moderate, with a low swell. Isolated showers. Good, occasionally moderate in showers.

Inshore waters and strong winds

For coastal waters up to 12 miles offshore

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, up to 12 miles offshore, around the British Isles are divided into 19 areas.

The forecast contains details of forecast wind direction and force, weather, visibility and sea state.

Strong coastal winds (Strong Breeze 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.

Caution: The internet is not part of the Maritime Safety Information system and should never be relied upon as the only means to obtain the latest forecast and warning information. Access to the service may be interrupted or delayed from time to time, updates may also be delayed. Please refer to GMDSS services, INMARSAT SafetyNET or international NAVTEX for the latest information. When using these web pages, always check that the page on your screen is not from your cache. Use the Refresh or Reload button if in any doubt.

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