Aella - 'whirlwind'; you could use Alla or Ella if you wantBrontes - 'thunderer'; if you want it more feminine, try Bronta, BronaCorentin - 'hurricane'; masculine, but you could use Corentina, Corena/Corina, Corene (which I've seen in another fantasy book, fwiw)Terhi - 'mist'
Bronta is a nice twist on Brontes / Bronte. I like it.Corentin could be interesting with the nn Coren. It's close to Karen, but not Karen. The meaning makes it sound like a hurricane of love.Terhi is interesting too.