This happened around 2016. I was on a cargo ship traveling from england to nova scotia. Somewhere off the south coast of greenland, while on midnight to 4am watch, the weirdest thing occurred. We noticed some activity on the radar, so i kept my eyes peeled out of the bridge windows trying to spot something. The night was crystal clear, tons of stars, and no signs of any other vessels anywhere near us. All of a sudden, an almost blanket of the thickest blizzard type snow i have ever seen overt...