A southwesterly and very variable flow prevails over the whole area.
For Calais :
No gale warning.
The reliability of the situation is fairly good.
For the night from Sunday to Monday SW wind force 3 continuing all night. Gusts reaching 16 knots in the early part of the night.
Slight sea. Low, short swell from WSW. Excellent visibility. Daytime of Monday 18 may : The sky will remain changeable.
Skies changeable to very cloudy. Possibility of showers late in the morning, possibility of showers in the afternoon. In the evening, good clear periods but cloud building.
Chance of light rain. WSW wind force 4 continuing all day. Gusts reaching 26 knots in the middle of the day. Slight sea. Low, short swell from WSW. Excellent visibility.