EGU22-12461, updated on 28 Mar 2022
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

S2S Extreme Weather Featurization: A Global Skill Assessment Study

Zubeida Patel1, Gciniwe Baloyi2, Campbell Watson3, Akram Zaytar4, Bianca Zadrozny5, Daniel Civitarese6, Sibusisiwe Makhanya7, and Etienne Vos8
Zubeida Patel et al.
  • 1IBM Research, South Africa (
  • 2IBM Research, South Africa (
  • 3IBM Research, USA (
  • 4IBM Research, Kenya (
  • 5IBM Research, Brazil (
  • 6IBM Research, Brazil (
  • 7IBM Research, South Africa (
  • 8IBM Research, South Africa (

A more accurate characterization of S2S extremes may result in great positive societal impact. Featurized S2S forecasts in the form of risk or extreme indices will aid in disaster response (especially for drought and flood events), inform disease outbreaks and heatwave onset, persistence, and decay. In this study, we identify a set of ECMWF-derived extreme weather indices that have spatio-temporal windows of opportunity for better-than-climatology skill. We report on the correlation between ECMWF-derived indices and ground-truth values.  The selected indices can be calculated directly form probabilistic daily forecasts, or alternatively, by training specialized ML-models to process ensembles in a multi-task learning setup. Our goal is to find better approaches to communicate S2S climate risk by deploying a set of ECMWF-derived climate forecast products.

How to cite: Patel, Z., Baloyi, G., Watson, C., Zaytar, A., Zadrozny, B., Civitarese, D., Makhanya, S., and Vos, E.: S2S Extreme Weather Featurization: A Global Skill Assessment Study, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-12461,, 2022.


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