Guarulhos airport in São Paulo has reopened following a six hour closure.
Due to heavy rains in the region an electrical substation flooded and the runway lighting was turned off as a precaution, shortly after midnight local time. Obviously without runway lighting the airport had to be closed and flights diverted to other airports or in some cases cancelled.
G1 - Cumbica reabre após 6 horas fechado por causa de tempestade - notícias em São Paulo
Just to add to the fun and games there is now a protest blocking the motorway access to the airport.
TTFN