Southern rain alert persists Flood impacts, heat outlook

Oct 4

The hosts review continuing red rain alerts in northern/western Rio Grande do Sul and western Santa Catarina/Paraná, high/rising rivers, existing flooding and landslide risk. Lara Fonseca reports more than 10,000 people already affected in Santa Maria. Further rain, wind and weekend disruption remain forecasts; the moisture corridor also extends toward the Southeast. The complete weather unit separately notes continuing dry-air warnings, falling humidity, rising temperatures and variable coastal Northeast/far-north rain. Friday maxima are forecast at 29°C Curitiba, 33°C Brasília, 32°C Fortaleza and 37°C Manaus. Existing impacts and prospective conditions remain distinct.

TV Brasil's October 5 forecast reports a central-southern severe-storm warning in effect since Sunday October 4. Rain is spreading through Rio Grande do Sul, Santa Catarina and Paraná, with particular overnight heavy-rain risk in western Paraná and a moisture corridor toward central and southeastern Brazil. Brasília's morning rain is observed; additional thunderstorms, heavy rainfall and coming-day conditions remain forecasts. The segment also reviews warned areas including São Paulo, southern Minas Gerais, southern Goiás and parts of Mato Grosso and Mato Grosso do Sul. It does not establish later forecast storm damage. The October 3 forecast already anticipates Sunday's substantial rain in Paraná, Mato Grosso do Sul and São Paulo and shows a red warning in western Paraná extending into part of Mato Grosso do Sul. This is an earlier forecast for the same October 4 warning episode, not a newly observed disaster or the separate late-September storm. Other regional conditions and temperatures remain in its complete source weather account. TV Brasil's October 6 forecast says the storm cycle discussed the previous night is now arriving in the South, with rain already spreading, western Rio Grande do Sul/Santa Catarina risks, southeastern low pressure and another system coming from Argentina. It warns of heavy rain, hail and winds above 100 km/h in coming days. This extends the already reported early-October warning/forecast episode; it does not establish the predicted damage, and the complete report's Northeast heat/dryness remains outside this event's passage coverage. The October 7 TV Brasil forecast explicitly continues the cold front tracked through the week, with a cyclone forming between Uruguay and the Rio Grande do Sul coast. Its intensity remains conditional. The hosts discuss South-region rain, wind and hail, Cemaden flood risk near Uruguaiana and landslide risks around Santa Maria, Santa Cruz do Sul, Lajeado and Porto Alegre. These are warnings and forecasts, with the separate central/Northeast dry-air episode excluded. TV Brasil's October 8 report continues the early-October southern rain warning with red alerts, high/rising rivers and more than 10,000 people already affected in Santa Maria. Further rainfall, wind and weekend disruption remain forecasts. The complete weather story's separate dry-air warning is outside this occurrence's passage coverage.