A northeasterly, moderate and variable flow prevails over the whole area.
Für Pornic : Warning strong breeze offshore.
The reliability of the situation is fairly good. For the night from Thursday to Friday W force 3 in the early part of the night becoming WNW force 2.
Smooth to slight sea temporarily slight in the middle of the night. Low, fairly long swell from W. Visibility reduced by mist becoming reduced by mist in the middle of the night then reduced by mist. Daytime of Friday 16 october : Warning:reduced visibility early in the day.
Fog developing into low cloud during the morning, very cloudy in the afternoon.Risk of some spots of rain in the morning, light showers dying away progressively in the afternoon.In the evening, very cloudy. Possibility of showers WSW force 2 freshening NNW force 4 in the middle of the day then becoming N. Gusts reaching 21 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, fairly long swell from W. Visibility reduced by mist becoming poor in the middle of the day then excellent.
Semaphoren
Station Pte De Chemoulin liegt 20 km von Pornic entfernt