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Glossary of Weather Terms

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Do you know the difference between a hurricane and a typhoon? Find definitions for weather terms from absolute humidity to zonal flow and everything in between in the WeatherBug weather glossary.

Divergence
Spreading out of air molecules away from each other and a certain location. More air is leaving than entering the location. The opposite of convergence, divergence at upper levels of the atmosphere enhances upward motion, and hence the potential for thunderstorm.

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