A damaging supercell hailstorm on 6 July 2023 in Vitoria-Gasteiz, the Basque Country

Egaña, Joseba; Arrillaga, Jon Ander; Gaztelumendi, Santiago

doi:10.5194/asr-22-165-2026

Articles | Volume 22

https://doi.org/10.5194/asr-22-165-2026

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

Special issue:

EMS Annual Meeting: European Conference for Applied Meteorology...

https://doi.org/10.5194/asr-22-165-2026

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

Articles | Volume 22

13 May 2026

| 13 May 2026

A damaging supercell hailstorm on 6 July 2023 in Vitoria-Gasteiz, the Basque Country

Joseba Egaña, Jon Ander Arrillaga, and Santiago Gaztelumendi

Metrics will be available soon.

Latest update: 13 May 2026

Short summary

On 6 July 2023, a severe hailstorm hit Vitoria-Gasteiz, caused by a supercell. Active cells moved southwest to northeast, with some shifting west-east. The storm, with radar reflectivities up to 65 dBz, brought intense showers and hail up to 5 cm in diameter. It caused injuries, vehicle damage and urban flooding. This study analyzes the storm’s conditions and surface effects using different data.