First published Oct 20, 2026, 5:55:15 PM UTC · Last updated Oct 20, 2026, 5:55:15 PM UTC

Thunderstorms and lightning

Thunderstorm Tonight in Riau

Reported by Indonesia BMKG Weather Alerts

Storms and heavy rain are forecast from 00:40 to 03:30 WIB on 21 October 2026 in parts of Riau, including Pendalian IV Koto, Rokan IV Koto, Singingi and XIII Koto Kampar. The alert notes possible poor visibility, strong winds and localized flooding, and advises people to take precautions.

At a glance

Affected location: Riau

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Why it matters

The forecast advises precautions during a period when hazardous weather and localized flooding may occur.

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 Tonight 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 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.
Nearby · within 200 km
Thunderstorm This Afternoon in RiauOct 20, 2026, 7:30 AM UTC
2 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
Thunderstorm This Morning in RiauOct 20, 2026, 2:50 AM UTC
2 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
Thunderstorms and Heavy Rain Forecast in Parts of Riau, IndonesiaOct 19, 2026, 11:20 PM UTC
Thunderstorms and heavy rain are forecast in parts of Riau from 06:30 to 09:00 WIB on 20 October 2026, with possible reduced visibility, strong winds, and localized flooding. The alert advises people to remain vigilant, limit outdoor activities, and take precautions.
Nearby · within 200 km
Thunderstorm Tonight in RiauOct 19, 2026, 9:00 PM UTC
3 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 19, 2026, 9:20 AM UTC
Thunderstorms and heavy rainfall are forecast in parts of Riau from 16:30 to 19:00 WIB on 19 October 2026. Reduced visibility, strong winds and localized flooding are possible.

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