the 70th Capacity Building Training Workshop (Pre-COF70) for climate scientists from ICPAC Member States was held physically from 12th to 16th May 2025 at ICPAC Offices in Nairobi, Kenya. The workshop was supported by the EU-funded Intra-ACP Climate Services and Related Applications (ClimSA) Project, the World Bank-funded Accelerating Impacts of CGIAR Climate Research for Africa (AICCRA), Climate Risk and Early Warning Systems (CREWS) Greater Horn of Africa, and UK Met Office.