This event briefing is designed to review the modelled losses due to excess rainfall calculated by CCRIF’s CWUIC model for a rainfall event that occurred from 6 to 8 October 2026 for affected CCRIF member water utilities. The Central Water and Sewerage Authority (CWSA) in Saint Vincent and the Grenadines was the only CCRIF water utility member for which the CCRIF CWUIC loss model for excess rainfall produced losses due to this rainfall event.