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Sea level pressure measured by the BaRos system over the past 16 days may be displayed in delayed mode at
http://www.meteo.shom.fr/cgi-bin/meteo/dataplot_surfmar.cgi?wmo=BAREU56&type=1&sns=ap
Presently, the server is updated once a day only (around noon UTC) with the values of the previous day.

Quality of measurements may be estimated thanks to comparisons with analysis model outputs. See:
http://www.meteo.shom.fr/cgi-bin/meteo/dataplot_surfmar.cgi?wmo=BAREU56&type=0&sns=ap
Normally, dots should be close to the "zero" line.
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