meteorology -
The atmospheric phenomena in a specific region or period.
Wikipedia
Meteorology is the interdisciplinary scientific study of the atmosphere that focuses on weather processes and short term forecasting (in contrast with climatology). Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the eighteenth century. The nineteenth century saw breakthroughs occur after observing networks developed across several countries.
OmegaWiki Dictionary
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meteorology The science concerned with the atmosphere and its phenomena.