First published Oct 30, 2026, 3:43:16 PM UTC · Last updated Oct 30, 2026, 3:43:16 PM UTC

Thunderstorms and lightning

Thunderstorm Tonight in Sumatera Utara

Reported by Indonesia BMKG Weather Alerts

A forecast calls for thunderstorms and heavy rain in parts of Sumatera Utara from 30 October 2026 at 22:20 WIB, with possible reduced visibility, strong winds, and localized flooding. The alert advises precautions and says conditions may improve by 31 October at 02:32 WIB.

At a glance

Affected location: Sumatera Utara

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Why it matters

The forecast covers numerous localities and begins shortly after the alert was published.

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: 6/10How 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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Related developments reported in the last 30 days. These are not necessarily ongoing incidents.

Nearby · within 200 km
Thunderstorm Tonight in Sumatera UtaraOct 30, 2026, 12:20 PM UTC
Thunderstorms and heavy rainfall are forecast in parts of Sumatera Utara from 19:50 to 22:50 WIB on 30 October 2026. The source notes possible reduced visibility, strong winds, and localized flooding.
Nearby · within 200 km
Thunderstorm Tonight in Sumatera UtaraOct 29, 2026, 5:20 PM UTC
Thunderstorms and heavy rainfall are forecast in parts of Sumatera Utara from 30 October 2026 at 00:30 WIB, with conditions expected to improve by 03:30 WIB. The source warns of possible reduced visibility, strong winds, and localized flooding.
Nearby · within 200 km
Thunderstorm This Evening in Sumatera UtaraOct 29, 2026, 7:40 AM UTC
Thunderstorms and heavy rain are forecast in parts of Sumatera Utara from 29 October 2026, 15:10 to 18:10 WIB. The source warns of possible reduced visibility, strong winds and localized flooding, and advises the public to take precautions.
Nearby · within 200 km
Thunderstorm This Morning in Sumatera UtaraOct 29, 2026, 3:15 AM UTC
Thunderstorms and heavy rainfall are forecast in parts of Sumatera Utara from 10:45 to 13:45 WIB on 29 October 2026. The public is advised to stay vigilant, limit outdoor activities, and take precautions.
Nearby · within 200 km
Thunderstorm This Morning in Sumatera UtaraOct 28, 2026, 9:45 PM UTC
Thunderstorms and heavy rainfall are forecast to begin at 05:15 WIB on 29 October 2026 in named areas of Sumatera Utara. The supplied excerpt lists affected localities but ends mid-list.
Nearby · within 200 km
Thunderstorm Tonight in Sumatera UtaraOct 27, 2026, 2:30 PM UTC
Thunderstorms and heavy rainfall are forecast to begin at 22:00 WIB on 27 October 2026 in parts of North Sumatra, including the listed districts. The excerpt ends mid-sentence and does not state resulting impacts.

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