ðə sˈaɪz ʌvðə swˈɛl ɪz ɐfˈɛktᵻd baɪ θɹˈiː vˈɛɹɪəbəlz: ðə vəlˈɑːsᵻɾi ʌvðə wˈɪnd, ɪts dʊɹɹˈeɪʃən, ænd ɪts fˈɛtʃ, ɔːɹ dˈɪstəns ðə wˈɪnd blˈoʊz ˈoʊvɚ.
The size of the swell is affected by three variables: the velocity of the wind, its duration, and its fetch, or distance the wind blows over.