Apply to an OPACHE
The Open Panels of CHy Experts (OPACHE) are open for admission during the intersessional period (2016-2020).
Each expert applying to be part of an OPACHE must complete a Professional Information Form and have their nomination approved by the Permanent Representative (PR) of the country of residence of the expert with WMO. The approval letter signed by the PR, should be sent either by fax or by postal mail or scanned and sent by email to WMO.
If you don't know how to contact the Permanent Representative to the WMO for your country please email us at
Professional Information Form:
©2017 World Meteorological Organization, 7bis, avenue de la Paix, Case postale No. 2300, CH-1211 Geneva 2, Switzerland - Tel.: +41(0)22 730 81 11 - Fax: +41(0)22 730 81 81