Brazil's national meteorology agency issued frost alerts for 870 cities on Tuesday, July 14, as intense cold grips the country [1].

This weather event threatens agricultural productivity and public health across several states. The sudden drop in temperature can damage crops and increase the demand for heating and emergency medical services in regions not always equipped for extreme freezes.

The Instituto Nacional de Meteorologia, known as Inmet, said that the cold will persist across the Southeast and South regions [1]. Specifically, the alerts cover the states of Minas Gerais, São Paulo, and Rio de Janeiro in the Southeast, as well as Rio Grande do Sul, Santa Catarina, and Paraná in the South [1, 2].

Meteorologists said a dry air mass moving over the country is the primary cause of the temperature drop and the increased risk of frost [3]. In some affected areas, temperatures are expected to fall to around 0°C [2].

While the south and center-south experience these freezing conditions, other parts of the country maintain a stark contrast. Some regions are seeing temperatures reach as high as 34°C on the same day [3].

Local authorities are monitoring the situation as the cold front continues to move. The risk of frost remains high for the municipalities identified by Inmet as the dry air mass remains stationary over the region [4].

Brazil's national meteorology agency issued frost alerts for 870 cities

The widespread nature of these frost alerts, affecting nearly 900 municipalities, indicates a significant meteorological event. Because the South and Southeast are critical agricultural hubs for Brazil, a freeze of this magnitude can lead to substantial crop losses, potentially impacting food prices and export volumes for the current season.