Lewis Short
(adjective) : prŏcellōsus, a, um, procella
* Full of storms, stormy, tempestuous, boisterous (perh. not ante - Aug.): ver procellosum, Liv. 40, 2: status caeli,Col. 9, 4, 1: mare,Val. Fl. 3, 621; cf. in the sup.: procellosissimum pelagus, Aug. Civ. Dei, 5, 22 fin.: Noti, stormy winds, i. e. which raise storms, Ov. H. 2, 12; id. Am. 2, 6, 44.—Adv.: prŏcellōsē, boisterously (late Lat.): genus humanum procellose tumidum,Aug. Conf. 13, 20.
Charlton T. Lewis, Charles Short, A Latin Dictionary