A southwesterly, moderate and very variable flow prevails over the whole area.
For Calais :
No gale warning.
For the night from Tuesday to Wednesday SW wind force 5 continuing all night. Gusts reaching 29 knots until the middle of the night.
Smooth to slight sea becoming slight in the middle of the night. Low, short swell from WSW. Excellent visibility. Daytime of Wednesday 17 december : The atmosphere will remain unstable.
Very cloudy. But clear spells will become more and more widespread. Light showers all day. In the evening, good clear periods but lots of cloud, too.
Showers. SW force 5 in the morning becoming force 4 in the evening. Gusts reaching 29 knots in the morning. Slight sea. Low, short swell from WSW. Excellent visibility.