A northerly, moderate and variable flow prevails over the whole area.
For Castro Urdiales :
No gale warning.
The reliability of the situation is fairly good.
For the night from Friday to Saturday W force 2 in the early part of the night becoming WNW force 3. Gusts reaching 13 knots in the middle of the night.
Smooth to slight sea. Low, short swell from N then from NNW at the end of the night. Good visibility becoming excellent in the middle of the night then excellent. Daytime of Saturday 15 august : The sky will remain very cloudy.
Skies very cloudy, risk of thundery outbreaks in the morning. Showers in late morning, possibility of showers in the afternoon. In the evening, very cloudy with risk of storms.
Possibility of showers NW wind force 3 continuing all day. Gusts reaching 12 knots all day. Smooth to slight sea becoming slight in the evening. Low, short swell from NNW. Poor visibility becoming good in the middle of the day then good.