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
10pm Sunday, 23 April 2017 for the period ending 1am
At 7 p.m. a ridge of high pressure over the
Channel was expected to decline as a low, 1006mb, near
Shetland moves quickly east.
Forecast from 1am Monday to 1am
Wind: East or variable 1 to 3, becoming mainly westerly
Monday morning, increasing 3 to 4 during the afternoon,
then veering north 5 to 6 by midnight.
Sea state: Smooth or slight, becoming moderate to rather
rough late evening.
Weather: Risk of mist patches near the French coast early
morning. Occasional rain spreading from the north late
Visibility: Good, perhaps locally moderate to poor early
morning and in rain later.
Swell: Not significant.
Outlook from 1am Tuesday to 1am
Wind: North 5 to 6, decreasing 4 to 5 around dawn,
perhaps 3 to 4 by late afternoon.
Sea state: Moderate to rather rough, decreasing slight at
Weather: Occasional rain clearing by dawn. Isolated showers
developing late morning, becoming scattered in the evening
with a risk of hail and thunder.
Visibility: Good, occasionally moderate to poor in rain and
in showers later.