First published Oct 19, 2026, 10:41:15 PM UTC · Last updated Oct 19, 2026, 10:41:15 PM UTC

Thunderstorms and lightning

Thunderstorm This Morning in Sumatera Utara

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rainfall are forecast in parts of Sumatera Utara from 20 October 2026 at 05:10 WIB, with conditions expected to improve by 08:10 WIB. Reduced visibility, strong winds, and localized flooding are possible.

At a glance

Affected location: Sumatera Utara

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Why it matters

The forecast advises people in the affected areas to remain vigilant, limit outdoor activities, and 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: 5/10How 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 UtaraBMKG — Indonesian Agency for Meteorology, Climatology, and Geophysics

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