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 10pm Monday, 20 November 2017 for the period ending 1am Thursday.
At 6pm high, 1026mb, over France, expected to decline. Low, 1005mb, just west of Scotland, expected to move east and fill.
Forecast from 1am Tuesday to 1am Wednesday.
Wind: Southwesterly 4 in the south of the area to 5, occasionally 6, in the north, increasing generally 5 to 6 through the afternoon, occasionally 7 mid-Channel by evening.
Sea state: Moderate in the south to rather rough in the north, perhaps locally rough mid-Channel in the evening.
Weather: Risk of mist patches near the French coast until mid morning. A little light rain or drizzle likely in the morning.
Visibility: Moderate to good, perhaps occasionally poor in rain, drizzle or mist.
Swell: 2 to 5 feet
Outlook from 1am Wednesday to 1am Thursday.
Wind: Southwest 5 to 6, occasionally 7 in the north of the area, backing south 6 to 7 around dawn, increasing 7 to gale 8 by evening.
Sea state: Moderate with a low swell in the south, rather rough to rough in the north, increasing generally rather rough to rough in the afternoon.
Weather: Risk of mist patches drifting from the Brittany coast early morning. Rain spreading in from the west in the afternoon.
Visibility: Moderate to good, perhaps locally moderate to poor in mist or rain.