Identifying controls of extratropical cyclone intensity at genesis time and during intensification in the North Atlantic and Europe

Cornér, Joona; Bouvier, Clément; Sinclair, Victoria A.

doi:10.5194/wcd-7-873-2026

Articles | Volume 7, issue 2

https://doi.org/10.5194/wcd-7-873-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wcd-7-873-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 7, issue 2

Research article

|

02 Jun 2026

Research article |

| 02 Jun 2026

Identifying controls of extratropical cyclone intensity at genesis time and during intensification in the North Atlantic and Europe

Joona Cornér, Clément Bouvier, and Victoria A. Sinclair

Supplement

https://doi.org/10.5194/wcd-7-873-2026-supplement

Data sets

Identifying controls of extratropical cyclone intensity at genesis time and during intensification in the North Atlantic and Europe: Dataset Joona Cornér et al. https://doi.org/10.23729/fd-75f4f757-3eae-37c7-85df-1923c986796e

Classification of North Atlantic and European extratropical cyclones using multiple measures of intensity: Data and Python code Joona Cornér et al. https://doi.org/10.5281/zenodo.11384417

Model code and software

Identifying controls of extratropical cyclone intensity at genesis time and during intensification in the North Atlantic and Europe: Python code Joona Cornér et al. https://doi.org/10.5281/zenodo.17953425

Classification of North Atlantic and European extratropical cyclones using multiple measures of intensity: Data and Python code Joona Cornér et al. https://doi.org/10.5281/zenodo.11384417

Short summary

Understanding the intensification of extratropical cyclones (ETCs) is important from weather forecasting and climate perspectives due to their societal impacts and major role in mid-latitude weather. Here we show that precursors to ETC intensification at genesis time show physically meaningful controls on the final maximum ETC intensity. However, to understand in detail the processes leading to differences in intensity between ETCs, one should study the evolution of multiple ETC precursors.