Issued by the Jersey Meteorological Department at 10am Wednesday, 15 August 2018 for the period ending 1pm Friday.
Some drizzle a.m., sunny periods p.m.
At 7am, high, 1026 mb, over the Azores extended a ridge to France, expected to decline. Low, 987 mb, to the south of Iceland, expected to move northeast with associated cold front crossing the Channel on Thursday.
Forecast from 1pm Wednesday to 1pm Thursday.
Forecast: Any mist or fog patches early afternoon clearing. Outbreaks of rain, locally heavy with mist or fog spreading in from the west Thursday morning.
Wind: Southwest to west 3 to 4, locally variable 1 to 3 south of Jersey until midnight, then southwest 4 to 5 overnight, perhaps locally 6 mid Channel around dawn, veering west and decreasing 3 to 4 by midday.
Visbility: Mainly good, becoming moderate to poor or very poor in the morning.
Sea State: Smooth or slight in the south and east, and slight increasing moderate in the north and west of the area overnight.
Sea Swell: 2 to 3 feet mainly in the west of the area.
Outlook from 1pm Thursday to 1pm Friday.
Forecast: Rain, perhaps locally heavy, with mist and a risk of fog patches, clearing by Thursday evening. Risk of showers in the south of the area Friday morning.
Wind: West to northwest 3 to 4, occasionally 5 on Thursday.
Visbility: Moderate to good, occasionally poor or very poor, becoming good by Thursday evening.
Sea State: Slight to moderate, with a low swell.