First published Oct 20, 2026, 11:38:15 AM UTC · Last updated Oct 20, 2026, 11:38:15 AM UTC

Thunderstorms and lightning

Thunderstorm This Evening in Kalimantan Tengah

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rainfall are forecast in parts of Kalimantan Tengah, especially Arut Selatan, from 17:54 to 19:00 WIB on 20 October 2026. The alert mentions possible reduced visibility, strong winds, and localized flooding.

At a glance

Affected location: Arut Selatan, Central Kalimantan

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Why it matters

The forecast includes possible strong winds, reduced visibility, and localized flooding, and advises the public to 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: 7/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How 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 TengahBMKG — 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 Kalimantan TengahOct 20, 2026, 12:00 PM UTC
Thunderstorms and heavy rainfall were forecast from 19:10 to 21:00 WIB on 20 October 2026, especially in Bulik, Kalimantan Tengah. The alert warned of reduced visibility, strong winds, and localized flooding.
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Thunderstorm This Evening in Kalimantan BaratOct 20, 2026, 9:30 AM UTC
Thunderstorms are forecast in parts of Kalimantan Barat starting at 16:40 WIB on 20 October 2026, including Bengkayang, Pontianak Kota, Pontianak Selatan, and Sadaniang. The alert warns of possible reduced visibility, strong winds, and localized flooding, and advises people to remain vigilant and limit outdoor activities.
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Thunderstorm accompanied with lightning and light spells of rain with gusty winds reaching 30-40 kmph very likely to occur at isolated places.Oct 20, 2026, 12:29 PM UTC
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INMET issued a potential-danger storm alert for areas in Santa Catarina, Rio Grande do Sul, Paraná, Mato Grosso do Sul and São Paulo, effective 21 October 2026 from 15:00 to 23:59 (times as supplied). The source does not specify impacts or protective instructions.

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