First published Oct 21, 2026, 5:34:16 AM UTC · Last updated Oct 21, 2026, 5:34:16 AM UTC

Thunderstorms and lightning

Thunderstorms and heavy rain forecast for parts of Riau

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rain are forecast from 11:15 to 14:00 WIB on 21 October 2026 in eight named parts of Riau, Indonesia, with possible reduced visibility, strong winds and localized flooding. The public was advised to remain vigilant and limit outdoor activities.

At a glance

Affected location: Riau

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Why it matters

The forecast includes possible localized flooding and strong winds, and the public was advised 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: 6/10How 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 Afternoon in RiauBMKG — 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 Forecast This Afternoon in Kep. RiauOct 21, 2026, 6:17 AM UTC
Thunderstorms and heavy rainfall are forecast from 13:27 to 15:40 WIB on 21 October 2026 in parts of Kep. Riau, including Bintan Utara, Bunguran Utara, Seri Kuala Lobam, and Tambelan. The source warns of possible reduced visibility, strong winds, and localized flooding.
Nearby · within 200 km
Thunderstorm This Afternoon in RiauOct 21, 2026, 4:00 AM UTC
Thunderstorms and heavy rainfall are forecast in parts of Riau from 11:15 to 14:00 WIB on 21 October 2026, with reduced visibility, strong winds, and localized flooding possible. The public is advised to stay vigilant, limit outdoor activities, and take precautions.
Nearby · within 200 km
Thunderstorm This Morning in RiauOct 21, 2026, 12:40 AM UTC
Thunderstorms and heavy rain were forecast for parts of Riau on 21 October 2026, with possible reduced visibility, strong winds, and localized flooding. The source advises vigilance and limiting outdoor activity; conditions were expected to ease by 10:00 WIB.
Nearby · within 200 km
Thunderstorms and Heavy Rain Forecast in Parts of Riau, IndonesiaOct 20, 2026, 8:30 PM UTC
Thunderstorms and heavy rainfall are forecast from 03:40 to 07:40 WIB on 21 October 2026 in parts of Riau, including Kabun, Kampar Kiri Hulu, and other named areas. The source advises vigilance and precautions.
Nearby · within 200 km
Thunderstorm Tonight in RiauOct 20, 2026, 8:30 PM UTC
5 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
Thunderstorm This Evening in RiauOct 20, 2026, 9:20 AM UTC
Thunderstorms and heavy rain are forecast in parts of Riau from 20 October 2026 at 16:30 WIB, with possible reduced visibility, strong winds, and localized flooding. The source advises vigilance and limiting outdoor activities, and says conditions should gradually improve by 19:30 WIB.

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