For Cala d"Ostia :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Warm sun all day. In the evening, clear skies.
N force 2 freshening S force 4 in the middle of the day then NNE force 3. Gusts reaching 21 knots in the middle of the day. Smooth sea. Low, short swell from N temporarily from N in the middle of the day. Excellent visibility.