A northeasterly and particularly variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, weak and particularly variable.
For Calais :
No gale warning.
For the night from Tuesday to Wednesday NE wind force 4 continuing all night. Gusts reaching 19 knots in the early part of the night.
Moderate sea becoming slight in the middle of the night. Low, short swell from ESE then from NNW in the middle of the night then from NW. Excellent visibility. Daytime of Wednesday 24 september : The atmosphere will remain unstable.
Skies changeable to very cloudy. Light showers all day. In the evening, cloud and long sunny periods.
Light showers progressively becoming less frequent. NE wind force 4 continuing all day. Gusts reaching 19 knots in the morning. Slight sea. Low, short swell from NW. Excellent visibility.