Recent studies of Aristotle’s meteorology have often focused on questions of scientific methodology rather than on the empirical accuracy of the explanations. Here we wish to focus on Aristotle’s theory of storms, considering them in their historical context and in light of Aristotle’s theoretical commitments, but testing them in terms of their ability to explain the phenomena in question. Aristotle’s approach to storm events follows a general pattern of “outburst” theories proposed by Presocratic thinkers, in which wind, fire, and the (...) like burst out of clouds. Aristotle proposes a two-exhalation theory in which a dry and a moist gas arise by evaporation and can conflict with each other. In Meteorologica II.9 and III.1, he provides his own theory of storms. Modern accounts are hampered by a mistranslation of ‘eknephias’ as “hurricane.” We argue that an eknephias is never a hurricane, but in the first place a theoretical construct meant to account for three distinct phenomena: tuphōn, keraunos, and prēstēr, all of which need to be identified more clearly with actual meteorological phenomena than they have been. We identify appropriate phenomena and also propose a phenomenon corresponding to eknephias, which makes sense of Aristotle’s account. (shrink)