Low 993 hPa centered to the South-West of Ireland moving at 9 knots to the East-South-East and rising to 1001 hPa to be centered on the Celtic Sea.
For Marans :
No gale warning.
We are 90% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.
Fog developing into low cloud during the morning, very cloudy skies becoming totally covered in the afternoon. No precipitation in the morning, showers in the afternoon. In the evening, overcast skies.
Light showers. SSE wind force 3 continuing all day. Gusts reaching 17 knots in the middle of the day. Slight sea becoming smooth to slight in the evening. Low, fairly long swell from W. Visibility reduced by mist becoming good in the middle of the day then reduced by mist.