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 Jersey Met at 21:00UTC Monday , 25 September 2023 for the period ending 00:00UTC Thursday.

General Situation

At 18:00UTC complex low, 975mb, 150miles south of Iceland, expected 977mb 50miles southeast Iceland by midday Wednesday. High, 1021mb, expected south France by same time.

Forecast from 00:00UTC Tuesday to 00:00UTC Wednesday.

Wind: Southeast to south 2 to 4, veering south to southwest 3 to 5 by dawn, becoming locally variable 1 to 2 in the south of the area in the afternoon.

Sea state: Smooth or slight, occasionally moderate in the north and northwest from midday until dusk, with a low to moderate swell throughout.

Weather: Risk of showers in the west and northwest until dawn. Risk of mist patches near Britanny coasts until around dawn then perhaps later.

Visibility: Good or very good, perhaps locally moderate or poor at times.

Outlook from 00:00UTC Wednesday to 00:00UTC Thursday.

Wind: Variable 1 to 3, generally becoming south to southeast 3 to 5 by dawn, then veering southwest to west 4 to 6 in the afternoon.

Sea state: Smooth or slight with a low to moderate swell, increasing moderate to rather rough in the north and west by midday, locally rough later.

Weather: Risk of mist patches near French coasts until around dawn. Occasional rain in the west of the area from mid-afternoon.

Visibility: Good or very good, perhaps locally moderate or poor at times.