The Vale do Paraíba region is set to experience significant rainfall throughout the weekend, specifically on Saturday, October 21, and Sunday, October 22, 2023. The heaviest accumulations are expected between the afternoon and evening periods, with rain anticipated across all municipalities in the region. This forecast arises from the formation of weather disturbances, known as cavados, in the coastal areas of the Southeast, which facilitate the development of storm clouds.

According to forecasts by Clima Tempo, the extensive rainfall is linked to ongoing atmospheric instabilities along the coastal regions of both the South and Southeast parts of Brazil. One of the primary reasons for the predicted high accumulation of precipitation is the prolonged duration of rainfall over several consecutive hours. Although the rain may at times reach moderate to strong intensity, it is not expected to be accompanied by lightning or strong winds.

This weather pattern highlights the importance of monitoring local forecasts, especially for residents and travelers in the affected areas. Preparedness for potential flooding or transportation disruption may be necessary, considering the prolonged and heavy rainfall expected during the weekend. The reliance on meteorological assessments to understand shifting weather events showcases the intricate relationship between climatic conditions and local communities in Brazil.