This electronic version of the second edition of the Glossary of Meteorology is a living document and meant to be periodically updated as terms in our field evolve. To that end, AMS has established a Chief Editor for the Glossary who is responsible for updating/revising existing terms and adding new terms.

Weather Glossary from the U.S. National Weather Service

Welcome to JetStream, the National Weather Service Online Weather School. This site is designed to help educators, emergency managers, or anyone interested in learning about weather and weather safety. The information contained in JetStream is arranged by subject; beginning with global and large scale weather patterns followed by lessons on air masses, wind patterns, cloud formations, thunderstorms, lightning, hail, damaging winds, tornados, tropical storms, cyclones and flooding. Interspersed in JetStream are "Learning Lessons" which can be used to enhance the educational experience. There is also a large weather glossary.

This glossary contains information on more than 2000 terms, phrases and abbreviations used by the NWS. Many of these terms and abbreviations are used by NWS forecasters to communicate between each other and have been in use for many years and before many NWS products were directly available to the public. It is the purpose of this glossary to aid the general public in better understanding NWS products.

This glossary contains weather-related terms that may be either heard or used by severe local storm spotters or spotter groups. Its purposes are 1) to achieve some level of standardization in the definitions of the terms that are used, and 2) provide a reference from which the meanings of any terms, especially the lesser-used ones, can be found. The idea is to allow smooth and effective communication between storm spotters and forecasters, and vice versa. This is an important necessity within the severe weather warning program. Despite advances in warning and forecasting techniques (e.g., Doppler radar), the human eye will always be a vital part of any effective warning system. Storm spotters are, and always will be, an indispensable part of the severe local storm warning program.