Is “Storm” a Scrabble word?

1.Any disturbed state of the atmosphere, especially as affecting the earth's surface, and strongly implying destructive or unpleasant weather.

2.A violent agitation of human society; a civil, political, or domestic commotion; violent outbreak.

“The proposed reforms have led to a political storm.”

3.A wind scale for very strong wind, stronger than a gale, less than a hurricane (10 or higher on the Beaufort scale).