For Piedras Altas :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Relatively clear skies becoming changeable. In the evening, light cloudy spells.
SSW wind force 2 from the middle of the day. Gusts reaching 11 knots in the middle of the day. Rippled sea. Low, short swell from SE. Excellent visibility.