JMA's Tokyo Climate Center (TCC) has assisted National Meteorological and Hydrological Services (NMHSs) in improving their climate services since 2008, providing basic climate data, products and tools to NMHSs online and assisting their capacity development in the Asia-Pacific region. TCC holds annual training seminars as part of these activities in its role as a Regional Climate Center in the WMO RA II area, and arranges expert visits to NMHSs to promote the effective transfer of technology and discuss possible support for climate services.

Against such a background, the Center held a training seminar on one-month forecasts in late January (online) and from 3 to 6 February (in-person at JMA headquarters) 2026. It was attended by 13 trainees from NMHSs in Bhutan, Cambodia, Hong Kong (China), Indonesia, Malaysia, Mongolia, Nepal, Pakistan, the Philippines, Singapore, Sri Lanka, Thailand and Vietnam. The training focused on climate system expertise and on skills in the analysis of atmospheric circulation fields and generation on one-month forecasts using the Interactive Tool for Analysis of the Climate System (iTacs) and the one-month guidance tool provided by TCC. All attendees gave final presentations on one-month forecasting in their respective countries and engaged in fruitful discussions with TCC staff.

The training contents are available on the TCC website at https://www.data.jma.go.jp/tcc/tcc/library/library2025.html.

Attendees with JMA Atmospheric and Oceanic Department Director-General Mr. Yoshihiko TAHARA and other TCC staff

Attendees on a courtesy visit to JMA Director-General Mr. Ryoichi NOMURA

Lectures and practical exercises at the seminar