First published Oct 21, 2026, 9:40:15 AM UTC · Last updated Oct 21, 2026, 9:40:15 AM UTC

Thunderstorms and lightning

Thunderstorm This Evening in Kalimantan Timur

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rain are forecast from 17:11 to 19:00 WITA on 21 October 2026 in parts of Kalimantan Timur, including Damai, Karangan, Kaubun, and other named areas. The advisory warns of possible reduced visibility, strong winds, and localized flooding.

At a glance

Affected location: Kalimantan Timur

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Why it matters

The advisory gives people in the affected areas a short window to take the stated 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: 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: 7/10How 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 TimurBMKG — 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.

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Thunderstorm This Evening in Kalimantan TengahOct 21, 2026, 9:30 AM UTC
Thunderstorms and heavy rainfall were forecast for parts of Kalimantan Tengah, especially Batu Ampar, starting at 16:40 WIB on 21 October 2026 and gradually improving by 19:00 WIB. The source warned of possible reduced visibility, strong winds, and localized flooding, and advised the public to take precautions.
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Thunderstorms and heavy rainfall are forecast in Hanau, Kalimantan Tengah, from 14:40 to 16:30 WIB on 21 October 2026, with possible reduced visibility, strong winds, and localized flooding. The public was advised to stay vigilant, limit outdoor activities, and take precautions.
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Thunderstorm This Afternoon in Kalimantan TengahOct 21, 2026, 7:30 AM UTC
Thunderstorms and heavy rainfall are forecast from 14:40 to 16:30 WIB on 21 October 2026 in parts of Kalimantan Tengah, especially Hanau. The forecast notes possible reduced visibility, strong winds, and localized flooding.
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Thunderstorm This Afternoon in Kalimantan BaratOct 21, 2026, 6:40 AM UTC
Thunderstorms and heavy rainfall were forecast from 13:50 to 16:00 WIB on 21 October 2026 in parts of Kalimantan Barat, including Pontianak Barat, Pontianak Kota, Pontianak Utara, Tebas, and Teluk Pakedai. The source warned of possible reduced visibility, strong winds, and localized flooding.
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Severe Thunderstorm Warnings — FlagstaffOct 21, 2026, 10:07 AM UTC
5 related advisories are grouped here. Expand the group to review every affected area and source advisory.
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