For PONTOISE : No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny becoming changeable in the afternoon. No precipitation.
In the evening, cloud and long sunny periods. No precipitation. NNW force 2 in the morning becoming force 3 in the evening. Gusts reaching 16 knots in the evening. Good visibility becoming excellent in the middle of the day.