# Extreme weather and emergency declarations in Paraná

> Live situation record from CLSTR: https://clstr.news/situations/extreme-weather-and-rainfall-in-paran
> Updated: 2026-09-02T18:24:27.000Z. Sources: 16. Developments: 2.

By September 5, 2026, the arrival of a polar air mass has caused significant temperature drops, with some southern municipalities recording lows below 4°C. Simepar and Inmet have issued alerts for frost and storms, noting a risk of moderate frost in the Palmas region and light frost in the Curitiba metropolitan area. Additionally, warnings have been issued for potential thunderstorms with winds reaching up to 60 km/h.

Yellow alerts remain in effect for storms with winds reaching up to 60 km/h, while Simepar continues to monitor potential frost, particularly in southern regions and near the Santa Catarina border. The state of Paraná continues to face these extreme temperature fluctuations as the polar air mass persists.

## Timeline

### 2026-09-02: Paraná weather alert: Storms and sharp temperature drop expected

Paraná faces heavy rain, potential storms, and a sharp temperature drop as a cold front and low-pressure system move through the state, with minimums potentially reaching 5°C.

13 sources. https://clstr.news/cluster/paran-weather-record-rainfall-in-august-followed-by-wet-september-forecast

### 2026-09-01: Corrientes rainfall reaches high levels in August 2026

Corrientes, Argentina, reported varied rainfall in August 2026, with Virasoro recording the highest at 288.4 mm and Goya recording the lowest at 43.4 mm.

3 sources. https://clstr.news/cluster/corrientes-rainfall-reaches-high-levels-in-august-2026

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Cite as: Extreme weather and emergency declarations in Paraná. CLSTR, https://clstr.news/situations/extreme-weather-and-rainfall-in-paran