A southwesterly and particularly variable flow prevails over the whole area.
For Calais :
No gale warning.
For the night from Tuesday to Wednesday SW wind force 4 continuing all night. Gusts reaching 24 knots in the early part of the night.
Smooth to slight sea. Low, short swell from WNW. Excellent visibility. Daytime of Wednesday 18 march : The atmosphere will remain unstable.
Skies changeable to very cloudy. Light showers all day. In the evening, good clear periods but lots of cloud, too.
Light showers. SW force 4 in the morning becoming SSW force 3 in the evening. Gusts reaching 22 knots in the morning. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from W. Excellent visibility.