Issued by the Jersey Met at 15:00UTC Sunday , 20 September 2020 for the period ending 18:00UTC Tuesday.
At 12:00UTC high, 1027mb, over the mid-Atlantic, extended a ridge across Scotland and into Eastern Europe, expected to drift slowly southeast. New low, expected 983mb, Fair Isle by 12:00UTC Tuesday.
Forecast from 18:00UTC Sunday to 18:00UTC Monday.
Forecast: A risk of isolated showers or thunderstorms near the French coast until late evening. Mist or fog patches developing overnight, mainly near the French coast, clearing by the afternoon.
Wind: Northeasterly 3 to 4, occasionally 5 in the north of the area until midnight, locally variable 1 to 3 in the south of the area, becoming mainly northerly or variable 1 to 3 across the area on Monday afternoon.
Visbility: Good, occasionally moderate, locally poor or very poor.
Sea State: Slight to moderate, occasionally smooth, with a low swell.
Outlook from 18:00UTC Monday to 18:00UTC Tuesday.
Forecast: Mist or fog patches, mainly near the French coast by dawn on Tuesday. Risk of patchy rain or drizzle later.
Wind: Northerly or variable 1 to 3, becoming westerly 2 to 4 overnight, then southwesterly by midday Tuesday.
Visbility: Moderate to good, perhaps locally poor or very poor.
Sea State: Smooth or slight.