For the area bounded by latitude 50N, the French coast between Cap de la Hague and Île de Bréhat and longitude 3W.
Issued by the Jersey Meteorological Department at 4pm Saturday, 18 August 2018 for the period ending 7pm Monday.
At 1 p.m., a ridge of high pressure extended from the Azores to northern France. Complex low, 1003mb 1000 miles west of Ireland, expected to move east to be over northern Ireland by Sunday.
Forecast from 7pm Saturday to 7pm Sunday.
Wind: Southwest to west 4, locally northwest 2 to 3 in the south at first, increasing 5 north of Jersey Sunday morning, locally 6 mid-Channel by Sunday afternoon.
Sea state: Slight, becoming moderate in the north of the area.
Weather: Becoming cloudy on Sunday with mist and a risk of fog patches spreading from the west in the afternoon.
Visibility: Good, becoming occasionally moderate to very poor later.
Swell: 2 to 3 feet.
Outlook from 7pm Sunday to 7pm Monday.
Wind: West to northwest 4 to 5, perhaps locally 6 at first, decreasing 2 to 4 overnight, becoming variable for a time.
Sea state: Slight in the south, moderate in the north, with a low swell.
Weather: Mist or fog patches and perhaps a little drizzle.
Visibility: Moderate, occasionally poor to very poor.