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Overview
- An orange, danger-level warning covers all of Rio Grande do Sul on Friday with 50–100 mm of rain possible, 60–100 km/h wind gusts and a risk of hail, according to Inmet.
- Inmet also flagged Rio de Janeiro, São Paulo and Minas Gerais for storms with up to 50 mm/day as high temperatures persist across the region.
- A separate Inmet alert places 313 municipalities in Paraná under risk for storms with gusts up to 60 km/h and possible hail.
- Rio de Janeiro’s West Zone saw localized flooding on Thursday, and BRT Line 17 was temporarily suspended due to water accumulation, with city crews deployed to affected points.
- INPE reported a more than 250% jump in lightning over São Paulo in early January versus 2025, linking the surge to record heat and El Niño conditions.