Occurred Oct 20, 2026, 10:50:00 PM UTC

First published Oct 21, 2026, 1:29:15 AM UTC · Last updated Oct 21, 2026, 1:29:15 AM UTC

Thunderstorms and lightning

Thunderstorm forecast this morning in Sumatera Barat

Reported by Indonesia BMKG Weather Alerts

An official forecast says thunderstorms and heavy rainfall may affect parts of Sumatera Barat from 06:00 to 08:30 WIB on 21 October 2026, with possible reduced visibility, strong winds, and localized flooding. The public is advised to remain vigilant, limit outdoor activities, and take precautions.

At a glance

Affected location: Sumatera Barat

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Why it matters

The forecast identifies possible hazardous conditions across multiple districts and advises the public to take precautions.

Location

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Generated scores

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

Confidence: 7/10How 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: 2/10The 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: 8/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

Indonesia BMKG Weather Alerts Thunderstorm This Morning in Sumatera BaratBMKG — Indonesian Agency for Meteorology, Climatology, and Geophysics

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

Nearby · within 200 km
Thunderstorm This Morning in Sumatera BaratOct 21, 2026, 1:42 AM UTC
Thunderstorms and heavy rainfall are forecast from 08:52 to 10:30 WIB on 21 October 2026 in parts of Sumatera Barat, including seven named districts. The advisory warns of possible reduced visibility, strong winds, and localized flooding.
Nearby · within 200 km
Thunderstorm This Morning in JambiOct 20, 2026, 11:00 PM UTC
Thunderstorms and heavy rainfall were forecast for parts of Jambi starting 21 October 2026 at 06:10 WIB, with conditions expected to improve by 08:10 WIB. The forecast noted possible reduced visibility, strong winds, and localized flooding.
Nearby · within 200 km
Thunderstorm Tonight in Sumatera BaratOct 20, 2026, 8:20 PM UTC
3 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
Thunderstorm Tonight in Sumatera BaratOct 20, 2026, 8:20 PM UTC
2 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
Thunderstorm forecast for Kapur IX and Sipora Utara, West SumatraOct 20, 2026, 5:20 PM UTC
Thunderstorms and heavy rain are forecast from 00:30 to 03:30 WIB on 21 October 2026 in parts of West Sumatra, especially Kapur IX and Sipora Utara. Reduced visibility, strong winds, and localized flooding are possible.
Same topic
Special Marine Warning issued October 20 at 11:09PM AST until October 21 at 12:30AM AST by NWS San Juan PROct 21, 2026, 3:09 AM UTC
The National Weather Service in San Juan issued a marine warning for Atlantic waters of Puerto Rico and the U.S. Virgin Islands after radar indicated a severe thunderstorm capable of producing waterspouts. The warning instructed boaters to seek safe harbor immediately; additional details were not included in the source data received by Planet Briefing.

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