The Alqueva reservoir currently has a storage capacity of 900 million cubic meters (900 hm3) available. The dam's discharge system is designed to handle flood flows up to 12,000 cubic meters per second, a limit calculated for a 1,000-year event.
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A study by researchers from NOVA University Lisbon evaluated the impact of February storms on the Costa da Caparica fossil cliff in Almada, recording a retreat of up to 6.9 meters in the Pica Galo area. The research advises that high-risk areas remain unsafe for returning residents and recommends establishing primary safety buffers of 10 to 15 meters plus a 10-meter secondary buffer where new construction, alterations, and regular human activity should be strictly prohibited.
Heavy rain on Tuesday 10 November led to the closure of two Lisbon primary schools, Escola Básica Maria Barroso and Escola Básica Luís de Camões, due to flooding and roof leaks. Parents at Maria Barroso report that drainage issues have persisted since 2022 and are awaiting promised municipal works. The Lisbon City Council states it is preparing interventions for these buildings to improve safety and weather resilience, though no specific timeline for repairs has been provided.
Heavy rainfall has caused significant flooding on roads in Queluz, including a section of the IC19 that was temporarily closed. Firefighters are on-site, but driving conditions remain difficult and motorists are advised to seek alternative routes.