A storm is any disturbed state of an environment or in an astronomical body's atmosphere especially affecting its surface, and strongly implying severe weather.
What is a Sturm?
A strong, blustery wind; gust; gale; squall. Storm, tempest.
What does Sturm und Drang mean?
Sturm und Drang, (German: “Storm and Stress”), German literary movement of the late 18th century that exalted nature, feeling, and human individualism and sought to overthrow the Enlightenment cult of Rationalism.