Subj : Weather Glossary (Y) To : All From : Daryl Stout Date : Sun May 26 2019 12:13 am This weather glossary contains information on more than 2000 terms, phrases and abbreviations used by the National Weather Service (NWS)... the government agency who makes weather forecasts, and issues weather advisories, watches, and warnings, for the United States, and its territories. 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 you in better understanding NWS products. *** YDA Yesterday Year The period during which the Earth completes one revolution around the sun. Yellow Snow Snow given a golden or yellow appearance by the presence in it of pine, cypress pollen, or anthropogenic material or animal-produced material. --- SBBSecho 3.07-Win32 * Origin: RadioWxNet: The Thunderbolt BBS tbolt.synchro.net (801:1/2) þ Synchronet þ Temple of Doom BBS - tod.eothnet.com .