For U 171 wreck :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sun in the morning, sunny despite some high cloud in the afternoon. No precipitation. In the evening, clear skies.
ESE force 3 turning SSE in the middle of the day then NNW. Gusts reaching 15 knots in the morning. Slight sea. Low, fairly long swell from WSW. Excellent visibility.