Issued by the Jersey Meteorological Department at 10am Saturday, 07 December 2019 for the period ending 1pm Monday.
- At the time of issue there was a Gale Warning in force for Sea Areas Wight, Portland and Plymouth.
- At the time of issue there was a Gale Warning in force for the Channel Islands area.
Sunny periods developing.
At 6 a.m., a ridge of high pressure over western Britain expected to move east. Low, 970mb, south of Greenland and Iceland, expected to move east to become Storm Atiyah to the north of Scotland 960mb Sunday morning.
Forecast from 1pm Saturday to 1pm Sunday.
Forecast: Risk of a shower in the south early afternoon. Outbreaks of rain after midnight, heavy at times, clearing early morning then isolated showers developing.
Wind: Westerly 3 to 4, backing southwesterly this afternoon, increasing 4 to 5, occasionally 6 by evening, increasing 5 to 7 by midnight and 6 to gale 8 overnight, veering westerly 6 to 7 by morning, occasionally gale 8 with gusts to 50kt by midday.
Visbility: Good, occasionally moderate to poor.
Sea State: Slight, increasing moderate to rather rough this evening, then rather rough to rough overnight and rough to very rough by midday.
Sea Swell: 2 to 6 feet, becoming confused with total waves becoming 8 to 14 feet.
Outlook from 1pm Sunday to 1pm Monday.
Forecast: Occasional blustery showers, occasionally heavy with a risk of thunder, becoming isolated by morning, dying out by midday.
Wind: Westerly 6 to gale 8 with gusts to 50kt, increasing 7 to severe gale 9 with gusts to 60kt in the evening, then northwest by morning, decreasing 6 to 7 by midday.
Visbility: Moderate to good, perhaps occasionally poor.
Sea State: Rough to very rough, increasing very rough to high overnight.