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The ECMWF sub-seasonal (extended range) forecasts: Introduction

Learn about sources of predictability, seasonal forecast skill and the ECMWF sub-seasonal forecasting system.



Last updated: 17 December 2025
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Fundamentals

40 minutes

Single module

What you'll learn

  • An overview of ECMWF forecasts at medium, sub-seasonal and seasonal ranges
  • The basis of sub-seasonal forecasts 
  • The ECMWF sub-seasonal ensemble forecasting system
  • Evaluation and performance of sub-seasonal forecasts

Topics

  • Forecasting

Description

Sub-seasonal (or extended range) forecasts provide outlooks up to 46 days. This lesson examines sources of predictability, seasonal forecast skill and the ECMWF sub-seasonal forecasting system.

Course Content

  • The ECMWF Extended range forecasts: Introduction

Tags

  • ensembles
  • products
  • seasonal
  • uncertainty

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