wiswiki.wmo.int will be retired on the 1st June 2020

The content of the wiki will be available from old.wmo.int/wiswiki/wiswiki.wmo.int as a static web site with an identical look. However, the wiki will not be functional and users will not be able to login and change or upload new content.



IWXXM 3.0 Release contents
Check whether all the component models have to be updated - if not, change the names and links of those that are unchanged to the previously approved version.


WMO Codes Registry providing information about supplemental resources referenced by IWXXM 3.0.

Schemas, schematrons and examples

Note: References to WMO and ICAO Technical Regulations within the XML schema shall have no formal status and are for information purposes only. Where there are differences between the Technical Regulations and the schema, the Technical Regulations shall take precedence. Technical Regulations may impose requirements that are not described in the schema.

Online version

Compressed file bundle

Release Notes

UML Model

Note: We develop the models and transform them into XML schemas with Enterprise Architect Version 12.1

HTML documentation generated from the UML model

Note: The pages are compatible with Firefox and Internet Explorer, but not with Chrome.
  • Compressed file containing html files for IWXXM 3.0RC1 and METCE 1.3RC1. Note: you need to unpack the folder structure and view index.htm.
  • Web versions for IWXXM 3.0RC1 and METCE 1.3RC1. Note: if you have problems reading the web pages with one browser, they may work in another.

Page last modified on Wednesday 09 of May, 2018 18:51:33 CEST