A southerly, strong and very variable flow prevails over the North-East of the basin. Over the South and the West, it is westerly, strong and very variable.
For Calais :
Warning moderate gale offshore.
The reliability of the situation is assessed at 80%.
For the night from Tuesday to Wednesday WSW force 5 weakening SSW force 3 in the middle of the night then S force 4. Gusts reaching 30 knots in the early part of the night.
Slight sea becoming smooth to slight at the end of the night. Low, short swell from NNW. Excellent visibility. Daytime of Wednesday 21 october : The unsettled weather will become more unpredictable in the second half of the day.
Skies very cloudy, becoming totally overcast during the morning, increasing sunny spells in the afternoon. Drizzle beginning to fall in late morning, light showers dying away progressively in the afternoon. In the evening, cloudy spells, sometimes dense.
No precipitation. S force 5 turning WSW force 6 in the middle of the day then W. Gusts reaching 42 knots from the middle of the day. Smooth to slight sea becoming moderate in the middle of the day. Low, short swell from W. Excellent visibility.