First published Oct 22, 2026, 12:33:15 PM UTC · Last updated Oct 22, 2026, 12:33:15 PM UTC

Thunderstorms and lightning

Aviso de Tempestade. Severidade Grau: Perigo Potencial

An official INMET storm alert covers areas in Acre, Mato Grosso, Rondônia, Amazonas, and Pará through 23:59 on 22 October 2026. It reports rain of 20–30 mm/h or up to 50 mm/day, winds of 40–60 km/h, and hail, with low risk of power cuts, crop damage, falling branches, and flooding.

At a glance

Affected location: Acre, Mato Grosso, Rondônia, Amazonas, and Pará

Share this event

Follow: Severe weather in Brazil

Manage follows

Why it matters

The alert identifies possible storm-related impacts across multiple areas in five Brazilian states.

Location

Show nearby reports · last 30 days

Highlighted marker: this event.

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: 6/10How 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

Report an issue

Read our editorial process and corrections policy.

Continue exploring

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

Nearby · within 200 km
INMET issues potential-danger heavy-rain warning across six Brazilian statesOct 19, 2026, 12:12 PM UTC
An official INMET alert is in effect on 21 October 2026 across areas of Acre, Rondônia, Amazonas, Mato Grosso, Roraima and Pará. It reports rain of 20–30 mm/hour or up to 50 mm/day, winds of 40–60 km/h, and low risk of power outages, falling branches, flooding and lightning.
Same topic
Aviso de Tempestade. Severidade Grau: Perigo PotencialOct 22, 2026, 1:45 PM UTC
3 sequential or cross-source alerts are grouped here. Expand the group to review every affected area and source report.
Same topic
INMET issues potential-danger storm alert across Brazil’s Southeast, South and Central-WestOct 22, 2026, 1:44 PM UTC
Brazil’s INMET issued a storm alert rated potential danger, active from 00:01 to 23:59 on October 25, 2026, for areas in the Southeast, South and Central-West. Specific storm impacts and protective instructions were not included in the source data received by Planet Briefing.
Same topic
Severe Thunderstorm Warnings — FlagstaffOct 22, 2026, 1:29 PM UTC
13 related advisories are grouped here. Expand the group to review every affected area and source advisory.
Same topic
Severe Thunderstorm Warning for Iron and Washington Counties, UtahOct 22, 2026, 1:23 PM UTC
The National Weather Service issued a severe thunderstorm warning for parts of Iron and Washington counties, Utah, through 8:15 AM MDT. The alert reports half-dollar-size hail and instructs people to shelter inside a well-built structure and stay away from windows.
Same topic
Fog (advisory) - Agawa - Lake Superior ParkOct 22, 2026, 12:59 PM UTC
14 sequential or cross-source alerts are grouped here. Expand the group to review every affected area and source report.

Loading related developments…

Explore severe weather in brazil