What great adjectives describe a terrible storm?

A terrible storm can be described as ferocious, with its howling winds and torrential rain creating chaos. It is often relentless, battering the landscape with unyielding force. The atmosphere becomes ominous, filled with dark, swirling clouds that evoke a sense of impending doom. Additionally, it can be described as tumultuous, as nature unleashes its fury in a dramatic display of power.