【Tirade】 , 【diatribe】 ,  【jeremiad】 ,  【philippic】  can all mean a violent, often long-winded, and usually denunciatory speech or writing.

【Tirade】 implies a swift emission of heated language, sometimes critical, sometimes abusive, but usually long-continued and directed against persons or things that the speaker or writer believes worthy of castigation.

【Diatribe】  carries a stronger implication of bitterness and, often, of long-windedness than  【tirade】 .

【Jeremiad】 stresses the implication of dolefulness or lugubriousness, but it usually applies to a 【diatribe】 in that strain.

【Philippic】 applies to an oration or harangue that constitutes a denunciatory attack filled with acrimonious invective and often directed against a public person, a way of life, an aggressive power, or some dictatorial assumption.