The Oxford Thesaurus An A-Z Dictionary of Synonyms - tempest n.

1) storm, wind-storm, hailstorm, rainstorm, hurricane, typhoon, tornado, cyclone, squall, thunderstorm: The Red Spot on Jupiter is the centre of a perpetual, violent tempest. 2) storm, commotion, disturbance, upheaval, disruption, furore or US furor, turbulence, ferment, tumult, agitation, perturbation, hurly-burly, disorder, outbreak, unrest, riot, chaos, uproar, brouhaha, Colloq hoo-ha: After the tempest of protest died down, a vote was taken and saner heads prevailed.