At 18:00UTC intense high, 1049mb, centred over the Severn Estuary, expected to drift very slowly southwest.
Forecast from 00:00UTC Monday to 00:00UTC Tuesday.
Weather: Fair or fine.
Wind: Northeasterly 3 to 4, perhaps locally 5 in the south of the area.
Sea state: Slight with a low swell.
Sea temperature: 9.5°C
Outlook from 00:00UTC Tuesday to 00:00UTC Wednesday.
Weather: Risk of mist or fog patches near French coasts during the morning.
Wind: Northeast to east 2 to 4.
Visibility: Good, perhaps locally poor or very poor during the morning.
Sea state: Smooth or slight, with a low swell.