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Channel Islands shipping forecast

For the area bounded by latitude 50°N, the French coast between Cap de la Hague and Ile de Brehat and longitude 3°W.

Issued by the Jersey Meteorological Department at 10pm Monday, 16 October 2017 for the period ending 1am Thursday.

General Situation

At 7pm low, 973 mb, centred near Malin Head, expected to move north-northeast and gradually fill, with associated weak fronts becoming slow moving over the Channel.

Forecast from 1am Tuesday to 1am Wednesday.

Wind: Southwest to west 4 to 5, occasionally 6 mid- Channel at first. decreasing 2 to 3 by dawn, backing east to northeast in the morning, increasing 4 to 5 in the afternoon, occasionally 6, veering southeast to south 3 to 4 around midnight.

Sea state: Moderate to rather rough, perhaps locally rough in the north of the area at first, generally decreasing smooth or slight by morning, increasing moderate to rather rough in the evening.

Weather: Occasional rain or drizzle.

Visibility: Moderate to good, occasionally poor.

Swell: 5 to 12 feet, decreasing 3 to 5 feet by evening.

Outlook from 1am Wednesday to 1am Thursday.

Wind: Southeast to south 2 to 4, veering southwest to west around dawn, backing southwest to south by midday.

Sea state: Slight to moderate with a low swell, decreasing smooth or slight.

Weather: Occasional rain or drizzle, especially in the morning. Risk of mist patches.

Visibility: Moderate to good, occasionally poor.

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