Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
thunder [ˈθʌndər] n гром
vi (shout) реве́ть (impf) (train etc)
to thunder past громыха́ть (прогромыха́ть perf) ми́мо
it's thundering греми́т гром
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.