Overview
- The Marinha do Brasil issued an aviso de ressaca for the Rio coast forecasting waves up to three metres through Saturday and the sea remained agitated into May 23.
- The Ciclovia Tim Maia has been closed between São Conrado and the Vidigal passarela since Thursday night after Sistema Alerta Rio recorded waves above two metres.
- Municipal teams deployed alarms, fixed and lighted panels, physical barriers and extra municipal guards and instructed people to avoid bathing, mirantes and nautical activities.
- Strong surf wrecked part of the calçadão at Praia da Macumba in Rio and damaged seawalls, boardwalks and streets along the Rio Grande do Sul coast in places such as Tramandaí and Atlântida Sul.
- Officials say inspections and repair plans will wait for calmer seas; the event was driven by an extratropical cyclone that produces long‑period swell and highlights recurring vulnerability on exposed urban shorelines.