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
4am Wednesday, 22 February 2017 for the period ending 7am
At midnight low, 963 mb, 250 miles north of
Scotland expected to move east with associated fronts slow
moving over Britain today. New low, 989 mb, expected
northwest Ireland by Thursday, then moving east and
deepening with cold front crossing the Channel by
Forecast from 7am Wednesday to 7am
Wind: West to southwest 5 to 6, locally 7 in the
Sea state: Moderate to rather rough Jersey southwards,
rather rough to rough Jersey northwards.
Weather: Occasional mist and drizzle, with the risk of fog
Visibility: Moderate to good, occasionally poor, perhaps
Swell: 2 to 5 feet. Confused in the north with total
waves 7 to 9 feet.
Outlook from 7am Thursday to 7am
Wind: Southwest 6 to 7, perhaps gale 8 with gusts to
50kt in the north mid-morning, veering west to northwest by
midday, decreasing 5 to 6 overnight.
Sea state: Rather rough to rough, increasing rough to very
rough by late morning, decreasing rather rough to rough
Weather: Occasional rain, drizzle, mist or fog patches
clearing by late morning. Isolated showers developing by
Visibility: Moderate to very poor becoming moderate to good