In completing that report Sir Michael undertook a comprehensive review of the floods themselves, the response to them and the arrangements that the responding organisations had in place.
Wrth lunio’r adroddiad hwnnw, cynhaliodd Syr Michael adolygiad cynhwysfawr o’r llifogydd, yr ymateb iddynt a’r trefniadau oedd gan y cyrff sy’n gyfrifol am ymateb.