A northerly and very variable flow prevails over the whole area.
For Calais :
No gale warning.
The reliability of the situation is poor.
For the night from Friday to Saturday NNE wind force 4 continuing all night. Gusts reaching 21 knots in the early part of the night.
Slight sea. Low, short swell from NNE. Excellent visibility. Daytime of Saturday 18 july : Improving during the day:the sky will clear.
Good clear periods alternating with cloudy spells, rather dense in the morning. No precipitation. In the evening, lots of good clear periods.
No precipitation. N wind force 4 continuing all day. Gusts reaching 24 knots in the evening. Slight sea. Low, short swell from NNE. Excellent visibility.