For PONTOISE : No gale warning.
We are 80% sure of the situation, because it is possible that the change in the rain system may not be as clear as forecast.
Overcast with reduced visibility in the morning, very cloudy with possibility of thunder storms in the afternoon. Rain followed by showers in the morning, showers in the afternoon.
In the evening, very cloudy with risk of storms. Showers becoming less frequent. SSW force 3 turning WSW in the middle of the day then W. Gusts reaching 22 knots in the evening. Visibility reduced by mist becoming excellent in the middle of the day.