Winds were strong at the ship, around 21 kts, and from the west. Some fog or boundary layer cloud appeared to be present all day on the radar image. 00 UT indicating the fog was light. However, the lidar didn't penetrate through it. Radar echo returns extended from the surface to 7 km and snow was reported in the in the 00 UT ship weather observation.
Satellite images show a lot of variability in brightness indicating possible convective cells.
Only the surface trajectories differs from this pattern going back into Europe.