SB 12.4.12

tato megha-kulāny aṅga
 citra varṇāny anekaśaḥ
śataṁ varṣāṇi varṣanti
 nadanti rabhasa-svanaiḥ
Word for word: 
tataḥ — then; megha-kulāni — the clouds; aṅga — my dear King; citra-varṇāni — of various colors; anekaśaḥ — numerous; śatam — one hundred; varṣāṇi — years; varṣanti — they pour down rain; nadanti — they thunder; rabhasa-svanaiḥ — with tremendous sounds.
Translation: 
After that, O King, groups of multicolored clouds will gather, roaring terribly with thunder, and will pour down floods of rain for one hundred years.