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 4pm Friday, 21 July 2017 for the period ending 7pm Sunday.
At 1pm, low, 993 mb, was slow moving over Ireland, with its associated cold front expected to cross the area this afternoon and evening.
Forecast from 7pm Friday to 7pm Saturday.
Wind: South 5 to 6 with gusts to 35kt, locally 7 mainly in the north of the area, veering southwesterly and decreasing 4 to 5 this evening, locally 6 at times on Saturday.
Sea state: Moderate to rather rough, perhaps locally rough in the north at first.
Weather: Rain, locally heavy with the risk of thunder, clearing by midnight. Isolated showers developing overnight, becoming more frequent Saturday morning with a risk of thunder.
Visibility: Moderate to poor in rain, becoming good by midnight, except in showers.
Swell: 4 to 7 feet, decreasing 3 to 5 feet overnight.
Outlook from 7pm Saturday to 7pm Sunday.
Wind: Southwest 4 to 5, occasionally 6 and gusty near showers, veering westerly overnight and decreasing 3 to 4 for a time Sunday morning.
Sea state: Moderate to rather rough, perhaps locally rough at times, becoming slight to moderate on Sunday, with a low swell.
Weather: Scattered showers or longer periods of rain, with a risk of thunder, becoming isolated overnight. Risk of rain in the south of the area Sunday afternoon.
Visibility: Good, occasionally moderate to poor in showers and any rain.