CREX ("A Character form for Representation and EXchange of data") is an alphanumeric TDCF (table-driven code form) defined by the World Meteorological Organization (WMO) for representation of meteorological data. CREX became operational in May 2000.

CREX is self-descriptive, and its main advantages are its flexibility and its expandability. In addition, CREX messages are human-readable. CREX complements BUFR in areas where binary coding is not feasible.

CREX edition 2 is operational from 2 Nov 2005. CREX editions 1 and 2 are operational in parallel up to 2012.

If you are not familiar with CREX, you can visit our introduction. We hope to be able to show you that CREX is easy!

If you need to decode CREX data or to encode data into CREX, the Cipher series - a set of software tools to handle CREX and other table driven codes - may be the solution you are looking for.

More about Cipher software
More about Cipher T-CREX

If you meet an unfamiliar word or term related with CREX, you can visit our

If you need to browse or use WMO CREX tables, you can visit here our