The Instituto Nacional de Meteorologia (INMET) forecasts rain for most of Brazil on Sunday, May 14, 2026 [1].
This weather pattern is significant because it involves the formation of a cyclone and a cold front, which can lead to sudden shifts in temperature and potential flooding across various regions.
According to INMET, the rain is expected to persist through Monday, May 15, 2026 [1]. The institute said, "Sunday and Monday with rain in a large part of the country" [1]. The widespread precipitation is linked to a cyclone forming over the weekend along with an associated cold front affecting the region [2].
Despite the broad coverage, several areas are expected to remain dry. INMET said it does not see a chance of rain in the west of Goiás, the northwest of Minas Gerais, the west of Bahia, or the south of Tocantins and Piauí [1].
Meteorological specialists cited by MSN Brasil said the forecast shows the formation of a cyclone this weekend [2]. The convergence of these atmospheric systems typically creates unstable conditions, resulting in the predicted rainfall across the majority of the Brazilian territory.
Local authorities often monitor these systems closely to manage urban drainage and agricultural impacts. The specific exclusion of western and northern pockets suggests the cold front's influence is concentrated in other sectors of the country.
“"Sunday and Monday with rain in a large part of the country."”
The interaction between a cyclone and a cold front creates a high-pressure instability that can disrupt transportation and agriculture. By identifying the specific dry zones in Goiás, Minas Gerais, Bahia, Tocantins, and Piauí, INMET provides a critical map for regional planning, while the broader forecast warns the rest of the country to prepare for potential weather-related disruptions.
