This is Gulf of Alaska transient (GOA) AT37 Lituya. She was recently spotted by NGOS a few days ago traveling with her family in Montague Strait.
AT37 Lituya is a successful matriarch and mother. She has had three confirmed calves in the past ten years: AT80 Yakutat, AT81 Yakutaga, and a newborn calf who was born sometime this year. She also has a probable adult son, AT72 Spencer.
Fun fact: AT37 Lituya was tagged a few years ago and her and her family traveled nearly 2,500 miles in a single month!