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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 10am Saturday, 21 September 2019 for the period ending 1pm Monday.

General Situation

At 7 a.m., high 1029mb over southeast Europe, declining eastwards. Low, 981mb, 500 miles west of Ireland, expected to move slowly northwestwards, with associated cold front moving into the area tonight.

Forecast from 1pm Saturday to 1pm Sunday.

Wind: Southeast 4 to 5, locally 3 in the south, locally 6 and gusty near showers in the north, veering southwesterly overnight, then backing southerly by noon tomorrow.

Sea state: Slight, briefly moderate in the north and west at first

Weather: Isolated showers with risk of thunder late afternoon and evening. Rain, locally heavy, spreading eastwards late tonight, clearing to isolated showers late morning tomorrow.

Visibility: Good, perhaps moderate in any thundery showers, then moderate to poor in rain later.

Swell: 1 to 3 feet developing tonight.

Outlook from 1pm Sunday to 1pm Monday.

Wind: Southerly 4 to 5, veering southwesterly 5 to 6 by evening, perhaps locally 7, then westerly 4 to 5 by midnight, backing southerly again Monday morning, increasing 6 in the west of the area later.

Sea state: Slight to moderate, increasing moderate to rather rough for a time overnight, with a low swell.

Weather: Scattered heavy showers with a risk of thunder late afternoon and evening, clearing to fair periods overnight. Rain, locally heavy, spreading into the west by noon Monday.

Visibility: Good, but moderate to poor in showers and in rain later.

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