First published Oct 21, 2026, 10:19:15 AM UTC · Last updated Oct 21, 2026, 10:19:15 AM UTC

Thunderstorms and lightning

Thunderstorm This Evening in Kalimantan Utara

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rain are forecast to begin in parts of Kalimantan Utara on 21 October 2026 at 18:08 WITA, with possible reduced visibility, strong winds, and localized flooding. The public is advised to remain vigilant and limit outdoor activities.

At a glance

Affected location: Kalimantan Utara

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Why it matters

The forecast covers multiple named areas and includes a warning about possible localized flooding and strong winds.

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: 4/10The 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 Evening in Kalimantan 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 This Evening in Kalimantan UtaraOct 21, 2026, 7:42 AM UTC
Thunderstorms and heavy rainfall are forecast from 21 October 2026, 15:54 WITA, in parts of Kalimantan Utara, with possible reduced visibility, strong winds, and localized flooding. The source advises vigilance and precautions, and says conditions should gradually improve by 17:30 WITA.
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Thunderstorms and Heavy Rain Forecast in Parts of AcehOct 21, 2026, 10:00 AM UTC
Thunderstorms and heavy rainfall are forecast in parts of Aceh from 17:10 to 20:20 WIB on 21 October 2026. The source advises people to remain vigilant, limit outdoor activities, and take precautions.
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Thunderstorm This Evening in Sumatera SelatanOct 21, 2026, 9:50 AM UTC
Thunderstorms and heavy rainfall were forecast from 17:20 to 18:50 WIB on 21 October 2026 in Pulau Rimau and Suak Tapeh, Sumatera Selatan. The source mentions possible reduced visibility, strong winds, and localized flooding, and advises the public to take precautions.

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