First published Oct 20, 2026, 12:07:15 PM UTC · Last updated Oct 20, 2026, 12:07:29 PM UTC

Brazilian INMET Potential-Danger Storm Alert

INMET issued a potential-danger storm alert for areas in Santa Catarina, Rio Grande do Sul, Paraná, Mato Grosso do Sul and São Paulo, effective 21 October 2026 from 15:00 to 23:59 (times as supplied). The source does not specify impacts or protective instructions.

At a glance

Affected location: Brazil

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Why it matters

The alert covers areas across multiple Brazilian states, but the source reports no specific impacts.

Location

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Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 3/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

INMET Brazil weather alerts Aviso de Tempestade. Severidade Grau: Perigo Potencial

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Related developments reported in the last 30 days. These are not necessarily ongoing incidents.

Nearby · within 200 km
Aviso de Tempestade. Severidade Grau: Perigo PotencialOct 20, 2026, 12:41 PM UTC
3 sequential or cross-source alerts are grouped here. Expand the group to review every affected area and source report.
Nearby · within 200 km
Aviso de Tempestade. Severidade Grau: Perigo PotencialOct 19, 2026, 12:14 PM UTC
INMET issued a potential-danger storm alert affecting areas in Santa Catarina, Rio Grande do Sul, Paraná, and Mato Grosso do Sul, from 15:00 to 23:59 on October 21, 2026. The source reports rain of 20–30 mm per hour or up to 50 mm per day, winds of 40–60 km/h, and hail.
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Thunderstorm accompanied with lightning and light spells of rain with gusty winds reaching 30-40 kmph very likely to occur at isolated places.Oct 20, 2026, 12:29 PM UTC
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INMET storm alert warns of potential danger across Brazil’s South, Southeast and Center-WestOct 20, 2026, 12:07 PM UTC
INMET issued a storm alert rated “Potential Danger” for areas across Brazil’s South, Southeast and Center-West, valid on 23 October 2026. The source does not specify expected impacts or protective actions.
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Meteoalarm reported an observed, actual severe-rain alert for El Hierro, effective 12:00–16:59 UTC on 20 October 2026. The source marks urgency as immediate and identifies the alert as an update.
Same topic
Thunderstorm Tonight in BengkuluOct 20, 2026, 12:05 PM UTC
Thunderstorms and heavy rainfall are forecast in parts of Bengkulu from 19:10 to 21:30 WIB on 20 October 2026, with reduced visibility, strong winds, and localized flooding possible. The public was advised to remain vigilant, limit outdoor activities, and take precautions.

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