About the premature and tardy frost that ocurred over the central plateau of México and were associated with some tropical cyclones



A study of the regions of Mexico that have been affected by the premature and tardy frosts are presented in this paper The most severe ones have occurred mainly in September of the years 1909, 1917, 1974, 1975, 1979 and 1988 and in June of 1979 The presence of tropical cyclones and the manifestation of the frost are related. It is found that the phenomenon of either the premature or tardy frosts has connection with the presence of tropical cyclones; being this a necessary, but no sufficient condition, since there are other cases with tropical cyclones in which the frost is not present over the high lands of the Central Plateau.

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