The widespread Sumatra Floods, along with landslides triggered by Cyclone Senyar, served as the unprecedented hydrometeorological catastrophe in November 2025. With over 800 fatalities, more than 500 missing people, and at least 10,900 damaged houses, this disaster underscores the need for more robust preparedness measures toward hydrometeorological disasters. This policy brief examines notable gaps in addressing and responding to the hydrometeorological disaster crisis in Indonesia, particularly to extreme events such as cyclones. The findings suggest that strengthening early warning systems and local capacities, enhancing emergency response capacity through integrated coordination and rapid assessment with standardised tools and technologies, improving land-use practices, and revitalising crisis communications to maintain public trust can advance preparedness and capacity to respond to future hydrometeorological disaster risks in a changing climate.