 The year in which historical centennial events  are expected to recur once per year on average under Representative Concentration Pathways RCP8.5 and RCP2.6, at the 439 individual coastal locations where the observational record is sufficient. The absence of a circle indicates an inability to perform an assessment due to a lack of data but does not indicate absence of exposure and risk. The darker the circle, the earlier this transition is expected. The likely range is 10 years for locations where this transition is expected before 2100. White circles  indicate that HCEs are not expected to recur once per year before 2100.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report