The Instituto Nacional de Meteorologia (Inmet) issued storm alerts for Paraíba and the Vale do Paraíba region during May 2026 [1].

These warnings are critical as they signal potential flash flooding and infrastructure damage in areas already vulnerable to heavy precipitation. The alerts aim to prepare local emergency services and residents for sudden, high-volume weather events.

In the Vale do Paraíba and the North Coast, Inmet warned of storms between Saturday, May 16, and Sunday, May 17, 2026 [1]. Meteorologists expected precipitation levels between 20 and 30 mm per hour, with an additional risk of hail [1].

Regarding the northeast, Inmet issued an orange alert for intense rains and danger across nearly the entire state of Paraíba [3]. This specific alert remained valid until 9:00 [3]. The agency also noted that some areas in Pernambuco that had already been affected by previous rains were under threat [3].

Weather patterns also impacted the coast of Bahia. Inmet predicted isolated rain for the coastal regions of Bahia, Sergipe, Alagoas, Pernambuco, Paraíba, and Rio Grande do Norte [2]. Local reports indicated that rain would persist on the Bahia coast until Saturday, May 25, 2026, before reducing on Sunday, May 26 [4].

Beyond the regional alerts, broader forecasts for the end of the month suggested more severe conditions in other parts of the country. Some reports indicated that the south of Brazil could see rainfall exceeding 100 mm [6].

"The Instituto Nacional de Meteorologia (Inmet) emitiu um alerta de tempestade para o Vale do Paraíba, Litoral Norte e região entre sábado (16) e domingo (17)," Inmet said [1].

Precipitation levels between 20 and 30 mm per hour, with an additional risk of hail.

The clustering of high-intensity alerts across both the southeast and northeast of Brazil indicates a period of significant atmospheric instability. The use of an 'orange alert' for Paraíba signifies a high level of risk, suggesting that the meteorological conditions could lead to significant damage or danger to life, necessitating immediate state-level readiness.