The following tutorial is intended to provide insight into the structure of XML-encoded OPMET data products. Please refer to the online documentation for full details of the data models to which these products conform.

Two products are examined:

1. A simple METAR for Karlovy Vary Airport (no trend forecast); and
2. A volcanic ash SIGMET for Shanwick Oceanic Flight Information Region

You should work through the tutorials in the order listed, because the later ones build on the content of the earlier ones.