High 1025 hPa centered on the North-East of Spain moving at 16 knots to the North-West to be centered on the South-East of the Bay of Biscay.
For Castro Urdiales :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Good clear periods alternating with cloudy spells, sometimes dense. No precipitation. In the evening, cloudy spells, sometimes dense.
No precipitation. NNE force 2 in the morning turning E in the evening. Gusts reaching 9 knots in the middle of the day. Slight sea. Low, long swell from N. Excellent visibility becoming good in the middle of the day then good.