There is plenty to discover in the Net Weather Guides but it's not, nor is any single site, the definitive one.
Do be careful if you use Wilkipedia as it is not always checked fully, although usually there is not any problem.
As an ex forecaster in the UK Met O I have recently acquired copies of their Forecasters Reference Book, albeit about 8 years since it was updated, so if anyone wants further information then please pm me and I will see if I can dig out the necessary reference.
Other sources are:
American Meteorological Society glossary: http://glossary.ametsoc.org/wiki/Main_Page
The link below gives an A-Z list of abbreviations from NOAA National Weather Service. Not all of them but a good many, so most you see used on the forum will be in here: https://w1.weather.gov/glossary/