A northerly, moderate 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 N force 4 in the early part of the night becoming force 3. Gusts reaching 16 knots in the early part of the night.
Slight sea. Low, short swell from N. Excellent visibility. Daytime of Monday 20 july : Improving during the day:the sky will clear.
Increasing clear spells. Skies becoming less cloudy in the afternoon. No precipitation. In the evening, skies with few clouds.
N wind force 4 continuing all day. Gusts reaching 20 knots in the middle of the day. Slight sea. Low, short swell from N. Excellent visibility.