For Istro Wreck :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Light cloudy spells. In the evening, good clear periods but cloud building.
No precipitation. W wind force 2 from the middle of the day. Gusts reaching 9 knots in the middle of the day. Smooth to slight sea. Low, short swell from W. Poor visibility becoming poor in the evening.