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HOME > Ensemble Model Prediction

JMA's Ensemble Prediction System (Products for Long-Range Forecasting of WMC Tokyo)

JMA, as a WMO World Meteorological Centre (WMC), operates the ensemble prediction system of an atmospheric global circulation model (AGCM) for one-month prediction and atmosphere-ocean coupled global circulation model (CGCM) for three-month and warm/cold season prediction. Ensemble prediction products, verification charts and specification of the ensemble prediction system are available on this page. JMA was designated as a WMC in 2017 and, as a part of its activities, the Centre conducts global numerical long-range prediction (Global Producing Centre for Long-Range Forecast; GPC-LRF)

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Main Products

One-month Prediction

       (Only registered NMHSs can access this guidance tool.)

Monthly Discussion on Seasonal Climate Outlooks  last updated : 27 Jul 2020


This product is intended to assist NMHSs in the Asia-Pacific region in interpreting WMC Tokyo's three-month prediction and warm/cold season prediction products.

Forecast Products in Support of Early Warnings for Extreme Weather Events   last updated : 06 Aug 2020

Early warning products for extreme weather events covering the period up to two weeks ahead. (Only registered NMHSs can access this page.)

  • If you have any questions about ID and/or password, please e-mail to: mail_address
  • Download Products for Long-Range Forecast (LRF) of WMC Tokyo

  • If you have any questions about ID and/or password, please e-mail to: mail_address
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