First published Oct 17, 2026, 11:46:15 PM UTC · Last updated Oct 17, 2026, 11:46:15 PM UTC

Thunderstorm Tonight in Sumatera Utara

Thunderstorms and heavy rainfall are forecast in numerous parts of Sumatera Utara from 17 October 2026 at 23:30 WIB, with conditions expected to improve by 18 October at 03:30 WIB. The source warns of possible reduced visibility, strong winds, and localized flooding.

Why it matters

The forecast covers many localities and includes possible flooding and strong winds, with the source advising people to take precautions.

Location

Categories: severe-weather-and-natural-disasters

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: 3/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (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 Sumatera UtaraBMKG — Indonesian Agency for Meteorology, Climatology, and Geophysics

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