Cold, Heavy Rain and El Niño Worry Forecasters in Southern Brazil

A new weather forecast has warned that Rio Grande do Sul, in southern Brazil, will experience a mix of cold air, heavy rainfall, and rising heat during the second half of August.

According to the forecast, some areas of the state could receive more than 100 mm of rain, alongside storms that bring hail.

Temperatures are also expected to climb above 30°C on certain days, creating sharp contrasts within a short period.

This volatile pattern has been linked to El Niño, a naturally occurring climate phenomenon known for altering rainfall and temperature patterns worldwide.

Meteorologists say El Niño is contributing to the unpredictable swings currently being observed across southern Brazil.

Weather authorities have issued alerts for storms this weekend, warning residents of the risk of hail, strong winds, and heavy downpours.

Such conditions can cause damage to crops, property, and infrastructure if the storms are severe.

Despite the stormy start, forecasters expect a quick return to warmer conditions, with temperatures rising again to around 30°C shortly after the rain passes.

This rapid shift between extremes is considered typical of periods when El Niño is active, as the phenomenon tends to intensify variability in local weather systems.

The report notes that this pattern is likely to persist for the remainder of August, with further changes between cold spells, rain, and heat expected.

Agricultural producers in the region have been advised to monitor the forecast closely, as the fluctuating conditions could affect both planting and harvest schedules.

While rain can benefit certain crops, excessive rainfall or hail can also pose serious risks to agricultural output.

Local authorities have urged residents to stay informed through official weather updates and to take necessary precautions ahead of the expected storms.

The situation reflects a broader trend of unstable weather being reported in several parts of Brazil this year, which experts partly attribute to the influence of El Niño on regional climate systems.