@Suty Here are some radar links
Ceará state (No coverage in Windy): https://radar.funceme.br/radar/RMT0100DS/prsf/MACRORREGIOES/20/true/2/0
Niteroi, Rio de Janeiro
https://radar.niteroi.rj.gov.br/
Neither X-Band Rio de Janeiro City radar
https://aplicativo.cocr.com.br/radar_s
Chã-Grande Radar (Pernambuco state)
http://old.apac.pe.gov.br/meteorologia/radar/cappi1.html