[1] Ubá originated from an area of low pressure that formed off the coast of Rio de Janeiro and evolved into a subtropical cyclone on 10 December.

Together with the South Atlantic Convergence Zone (SACZ), Ubá caused heavy rains in Minas Gerais, in Espírito Santo and mainly in Bahia.

The low caused, along with the South Atlantic Convergence Zone, heavy rains in Minas Gerais, in Espírito Santo and mainly in Bahia where very high volumes of precipitation were recorded in the city of Itamaraju, measuring 527 millimeters (20.7 in).

[3] On 10 December, the cyclone evolved and gave rise to a subtropical depression on the coast of southern Brazil, according to a synoptic chart from the Brazilian Navy.

In Ilhéus, the pool of a luxury resort overflowed, and some guests had to be transferred to another hotel [9] The government of Bahia decreed an emergency situation in 24 municipalities on the 9th.