Extreme Weather Event database over Aotearoa New Zealand

The Aotearoa New Zealand (ANZ) Extreme Weather Events (EWE) database (EWE_database_V1.0.0.xlsx) is a comprehensive record of extreme weather events in ANZ. The events listed in this database have been carefully assessed and categorized based on their meteorological significance, considering their rarity and whether they broke records or triggered official weather warnings. Some of the metrics used to classify each event rely on subjective judgment and expert opinions. The database captures meteorologically significant events, including those that have caused substantial damage to properties or led to casualties, and, in some cases, includes supplementary information about their socioeconomic impacts. The information in the EWE database is primarily sourced from the Meteorological Service of New Zealand Ltd (MetService) and the National Institute of Water and Atmospheric Research (NIWA). Additional impact data have been added from various media sources, with insured loss data for some events sourced from the Insurance Council of New Zealand (ICNZ).

Note - For more information about the database and the other additional files, please look into the Metadata (Metadata_EWE_V.1.0.0.docx)  and the supplementary document (Supplementary document on EWE_V.1.0.0.docx).