Sea of Swords

Geography

The Vrail: This south running current carries cold water from the far north of Toril down to the Shining Sea.past the west coast of the Moonshae Isles. It brings many storms and blizzards to the northern islands of the Sword Coast

The North Coastal Gyre: This current of warm water flows north along the Sword Coast from the Shining Sea past Calimshan, Tethyr, Amn, the Western Heartlands and as far north as Waterdeep where it meets the cold waters of the Vrail and turns northwest around the Whalebones and back towards the Moonshae Isles.