In contrast to her previous greatness, her downfall is here, by a sudden transition, depicted under the image of a vessel foundering at sea.
east wind - blowing from Lebanon, the most violent wind in the Mediterranean (Psa 48:7). A Levanter, as it is called. Nebuchadnezzar is meant. The “sea” is the war with him which the “rowers,” or rulers of the state vessel, had “brought” it into, to its ruin.