For U 171 wreck :
No gale warning.
The reliability of the situation is assessed at 85%.
Little cloud in the morning, some sun but cloud building in the afternoon. No precipitation in the morning, light showers dying away progressively in the afternoon. In the evening, very cloudy.
No precipitation. WNW wind force 5 continuing all day. Gusts reaching 23 knots from the middle of the day. Rough to very rough sea. Moderate, long swell from WSW. Good visibility becoming excellent in the middle of the day.