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Please can data producers ensure that there is a reasonable overlap of TAC and BUFR data on the GTS (at least two months, EUMETNET and GCOS recommend six months), any attempt to rush the change will result in more errors, extra work for NWP centres and possibly worse forecasts. Most countries give notice via METNOs or the the WMO newsletterOperational Newsletter. Note also that reformatted TEMP reports still as separate parts are not regulation BUFR and cause problems for NWP centres (some more than others).
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In 2017/18 a number of European ships started using new EUCAWS hardware and software. They report (with identifier EUC*) in BUFR only. MeteoFrance French TAC ship reports ceased in mid-January 2020. The Norwegian Meteorological Institute has provided notice that their alphanumeric SHIP bulletins will cease in mid-January on 18 May 2020.
Argo data
Most Argo reports are available in BUFR, with higher vertical resolution. Argo buoys stoped reporting in the alphanumeric TESAC code on 1 July 2018.
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