First published Oct 21, 2026, 8:01:15 AM UTC · Last updated Oct 21, 2026, 8:01:15 AM UTC

Thunderstorms and lightning

Thunderstorm This Evening in Kalimantan Timur

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rainfall are forecast in parts of Kalimantan Timur from 15:15 to 17:00 WITA on 21 October 2026, including several named districts. The source warns of possible reduced visibility, strong winds, and localized flooding, and advises the public to remain vigilant and limit outdoor activities.

At a glance

Affected location: Kalimantan Timur

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Why it matters

The forecast and safety advice apply to several districts in Kalimantan Timur during the stated period.

Location

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Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 5/10How 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 Afternoon in Kalimantan TengahOct 21, 2026, 7:30 AM UTC
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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Thunderstorm This Afternoon in Kalimantan TimurOct 21, 2026, 4:38 AM UTC
Thunderstorms and heavy rain were forecast from 12:40 to 15:00 WITA on 21 October 2026 in parts of East Kalimantan, including Bontang Selatan, Loa Janan, Marang Kayu, and Samarinda Utara. The source warned of reduced visibility, strong winds, and localized flooding.
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Severe Thunderstorm Warnings — FlagstaffOct 21, 2026, 8:56 AM UTC
3 related advisories are grouped here. Expand the group to review every affected area and source advisory.
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Very heavy rain likely in five Kerala districts through 08:30 on 22 October 2026Oct 21, 2026, 8:28 AM UTC
IMD-Thiruvananthapuram issued a severe alert for isolated heavy rainfall in five Kerala districts, valid until 08:30 on 22 October 2026. The notice advises following SDMA guidelines.

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