Kari is the son of Fornjot, an ancient Norse giant who was also a king of Finland. He had three sons, Kari the personified god of the wind, Aegir husband of Ran and god of the sea, and lastly, Logi, the personified god of fire.
Kári is mentioned in one of the thulur as a term for wind. Otherwise this personage appears only in the Hversu and Orkneyinga saga accounts where Kári appears to be the heir to his father's kingdoms as in the Hversu Kári's descendants emerge also as rulers of Finland and Kvenland. Kári is father of a son who is named Frosti ('frost') according to the Orkneyinga saga but named Jökul (jǫkull: 'icicle, ice, glacier') according to the Hversu. This son in turn is the father of Snær the Old (Snærr inn gamli 'Snow the Old')-(Wikipedia).
Kari is an important part of the pantheon of nature gods/ spirits. He is a ancient giant, and primordial force that may even predate the nine world. He is ancient. He is the wind.
Kari, like Skadhi is also the god of cold, ice and snow, being the god of the northern wind, it goes with the job.
Kari is a fan of the reindeer, and they are his patron animal, they are beloved to him. It is said one of his homes is in Nifflhiem, the world of cold, ice and snow where he lives in a cave with his granddaughters. (Kari's Shrine)
Until next time! May Kari bless you with kind winds! Hail Kari!