00000nas 2200000za 4500 9.838227 CaOODSP 20221107151329 cr ||||||||||| 170614d20142019qucgr p o||||f0 a0eng|d 2291-2908 CaOODSP eng n-cn--- En58-19E-PDF Aviation weather observing bulletin [electronic resource]. [Gatineau, QC] : Environment and Climate Change Canada, [2014-2019] Twice a year Began with: AVOBS 1-2014 (March 1, 2014); ceased in 2019 Issued also in French under title: Bulletin d’observation météorologique pour l’aviation. "Effective February 2019, coinciding with the publication of MANOBS 8th Edition, Aviation Weather Observing Bulletins (AVOBS) are no longer issued by Environment and Climate Change Canada" - https://www.canada.ca/en/environment-climate-change/services/weather-manuals-documentation.html#Bul. Aviation Weather Observing Bulletins (AVOBS) convey reminders, additional instructions, and clarification of observing procedures to weather observing stations. https://www.ec.gc.ca/meteo-weather/default.asp?lang=En&n=A85A01B3-1 Issued by Environment Canada prior to 2016. gccst Civil aviation gccst Weather forcasts Canada. Environment and Climate Change Canada. Bulletin d’observation météorologique pour l’aviation (CaOODSP)9.838229