Brazil's Southeast and South Experience Lingering Strong Winds, With Rivers on Alert

Strong winds, which previously caused fatalities and widespread damage including downed trees, power outages, and transportation disruptions, are expected to continue affecting parts of Brazil's Southeast and South regions on Thursday, November 30th. While these gusts are predicted to lessen in intensity compared to Wednesday, some areas may still experience winds around 50 km/h. The National Institute of Meteorology (Inmet) has issued a potential danger warning for coastal winds until 11:59 PM on Thursday, affecting southern Bahia, Espírito Santo, and the coast of Rio de Janeiro. This 'yellow' alert, the lowest level, advises caution around potentially damaged structures, trees, and poles. The meteorological phenomenon, known as a "gust front," occurs when a cold front meets significantly warmer air, causing a rapid and intense downdraft. This was observed in Rio de Janeiro, where temperatures dropped sharply after reaching 35.8°C, with gusts at Galeão Airport hitting 105 km/h. As the cold front moves offshore and atmospheric contrast diminishes, wind intensity is expected to decrease. In the Southeast, the cold front will bring clouds and some rain to parts of São Paulo and Rio de Janeiro, with temperatures dropping. São Paulo may see isolated showers and cooler weather, especially in the east and south, while some northern areas will remain dry with low humidity. Rio de Janeiro expects overcast skies, light to moderate rain, and moderate gusts, with highs around 28°C in the capital. Minas Gerais will mostly see clear skies, though some eastern areas might experience increased cloudiness. Espírito Santo may have light coastal rain and stronger gusts in the south and center. The South region, particularly Rio Grande do Sul and Santa Catarina, will see reduced rainfall, allowing sunshine to return. However, rivers and streams remain elevated due to recent heavy rains, posing a continued risk of new overflows in basins like Uruguai, Guaíba, Taquari, and Caí. Paraná may still experience heavy showers in its western and interior parts, with another cold front expected to bring instability and strong winds on Saturday, December 1st.