Basic Documents No. 2
Manual on the WMO Integrated Processing and Prediction System
Annex IV to the WMO Technical Regulations
The Manual on the WMO Integrated Processing and Prediction System (WMO No. 485) is the single source of technical regulations for all operational data processing and forecasting systems of Members designated by WMO as meteorological centres. The Manual is designed to ensure adequate uniformity and standardization of data, information and production practices, procedures and specifications employed among WMO Members in the operation of the WMO Integrated Processing and Prediction System (WIPPS) as it supports the mission of the Organization.