About the Guide to WIS2, Volume II

Guide to the WMO Information System (WMO-No. 1061), Volume II - WMO Information System 2.0

The guide contains additional information concerning practices, procedures, and specifications that Members are invited to follow or implement in establishing and conducting their arrangements in compliance with the WMO Technical Regulations and in developing meteorological and hydrological services.

INFCOM-3 approved the decision to split the Guide to WIS into two volumes. 

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Download from the WMO library

Guide to WMO Information System (WMO-No. 1061), Volume II - WMO Information System 2.0 [2024 edition]

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Recent amendments 

Links to proposals for amendments will be available here until a new version of the Guide is republished.

• FT2026-1: APPROVED
• FT2025-2: APPROVED 
• FT2024-2: APPROVED

View archive of all amendments since 2009. 

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More information

• See WIS2 Overview.
• View the approved version of the WIS2 Guide online. 

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Links to "about pages" of related publications

• About the Manual on WIS2, Volume II
• About the Guide to WIS2, Volume II
• About the WIS2 transition provisions
• About the Manual on WIS, Volume I
• About the Guide to WIS, Volume I