SB 8.24.41
tatah samudra udvelah
sarvatah plavayan mahim
vardhamano maha-meghair
varsadbhih samadrsyata
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Thereafter, gigantic clouds pouring incessant water swelled the ocean more and more. Thus the ocean began to overflow onto the land and inundate the entire world.