Lewis Short
(adjective) : nimbōsus, a, um, nimbus
* Full of storms, stormy, rainy (cf.: nubilus, nebulosus): fluctu nimbosus Orion,Verg. A. 1, 535: ventus,Ov. P. 2, 3, 27: aër,Luc. 5, 631: bruma,Stat. S. 1, 3, 89: montes,Plin. 18, 11, 29, § 109: ver,Juv. 4, 87: urbs, i. e. Rome,Plin. 26, 3, 8, § 16.
Charlton T. Lewis, Charles Short, A Latin Dictionary