The Central and Eastern European Infrasound Network (CEEIN) has been operating since
2019 in a collaboration of Hungarian, Czech, Romanian, Austrian, and Ukrainian research
institutes. The study aims to extend the process of categorisation of infrasound signals
that has been previously applied to the Hungarian infrasound array (PSZI) to the other
CEEIN stations. The method of associating infrasound signals with thunderstorms relies
on correlating the detections both spatially and temporally to lighting data from
the Worldwide Lightning Location Network (WWLLN), which is considered ground truth.
As a result, over 30,000 infrasound detections were categorized as thunderstorm-originated
in the period between 2019 and 2023. Based on the results, we analyse the capabilities
of the CEEIN to detect thunderstorms.