October 2022 Southern Ocean cyclone
The October 2022 Southern Ocean cyclone, also referred to as the Peter I storm or EC2022 was the most intense extratropical cyclone on record. Forming as a weak depression near Tonga late on 9 October, the extratropical cyclone tracked slowly southeastward across the South Pacific, remaining weak.
Source: Wikipedia — October 2022 Southern Ocean cyclone (CC BY-SA 4.0)