@Nick-Malahovsky The ECMWF Wave layer provides a forecast, may be coarse, of sea ice coverage. These are the gray areas above the sea. Currently in the vicinity of the Bering Sea [image: 1751370863401-b61e1095-9732-4a2a-91c9-f63dbdea944c.jpeg] More information: https://community.windy.com/topic/30319/ice-coverage/2?_=1751352201750 But there is may be more accurate data about sea ice for safe sailing in these regions.