This study discusses a particularly cold set of cloud top temperatures associated with deep convective over-shoots in the South West Pacific on December 29, 2018 that culminated in a cloud top temperature of 161.9K being measured by the VIIRS sensor. Unlike other extremely cold temperatures that were driven by cyclonic storms, this event is the result of a very cold tropopause coupled with semi-organized convective activity that is relatively typical for the region. The success of VIIRS in identifying these extremely cold temperatures that are missed by other sensors highlights the benefits of the improved spatial resolution afforded by recent sensor developments, while the high temporal resolution of the AHI and ABI instruments used here exemplifies the use of geostationary sensors for analyzing convective storms, despite their limited spatial resolution.