Deepening rates peaked on 16 October, where the pressure fell as rapidly as 19 mbar (0.56 inHg) over a six-hour period.

The cyclone's pressure has been estimated by the European Centre for Medium-Range Weather Forecasts (ECMWF) as 900.7 mbar (26.60 inHg) at 06:00 UTC on 17 October.

An analysis paper published in Geophysical Research Letters in July 2023 got a minimum pressure of 899.91 mbar (26.574 inHg) at 03:00 UTC the same day.

Cyclones in the Southern Ocean tend to have lowest pressures in mid-late September, when Antarctic sea ice is at is maximum.

Explosive cyclogenesis occurred on the 16th, with the storm's central pressure falling as rapidly as 19 mbar (0.56 inHg) over a six-hour period.

The ECMWF concluded that the cyclone lost its identity on 20 October while the Geophysical Research Letters paper called a dissipation two days later in the southwestern Atlantic Ocean.

[7] The analysis of data from the ERA5 model by the ECMWF estimates that the cyclone's central pressure reached a minimum of 900.7 mbar (26.60 inHg) along the edge of the Bellingshausen Sea near Peter I Island at around 06:00 UTC on 17 October.

[1] A subsequent analysis published in Geophysical Research Letters in July 2023 estimated a minimum central pressure of 899.91 mbar (26.574 inHg) at 03:00 UTC 17 October.