For Istro Wreck :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sun but cloud increasing in the morning, overcast skies in the afternoon. The risk of seeing rain will remain low. In the evening, very cloudy.
Chance of light rain. SSE force 3 turning WSW in the middle of the day then W force 4. Gusts reaching 17 knots in the evening. Smooth sea. Low, short swell from SSE. Good visibility becoming poor in the middle of the day then good.