An Abrolhos squall (or Abroholos squall or simply abroholos) typically occurs from May through August (austral winter) near the Abrolhos Islands off the coast of eastern Brazil near 18°S latitude, located between Cabo de São Tomé and Cabo Frio.
Various scenarios are mentioned, including the salvage of Captain Flint's houseboat when its anchor chain breaks in a squall.
On February 17, 2010, The Concordia was knocked down in a squall and subsequently sank, about 550 km from the coast of the state of Rio de Janeiro, Brazil.