First published Oct 20, 2026, 9:58:15 PM UTC · Last updated Oct 20, 2026, 9:58:15 PM UTC

Thunderstorms and lightning

Thunderstorms and Heavy Rain Forecast in Simpang Hulu, West Kalimantan

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rainfall are forecast in parts of West Kalimantan, especially Simpang Hulu, from 04:30 to 06:30 WIB on 21 October 2026. The source warns of reduced visibility, strong winds and localized flooding, and advises the public to stay vigilant, limit outdoor activities and take precautions.

At a glance

Affected location: Simpang Hulu

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Why it matters

The forecast identifies a short period of potential weather-related hazards in the named area and gives the public precautionary advice.

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: 2/10The 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 Tonight in Kalimantan BaratBMKG — Indonesian Agency for Meteorology, Climatology, and Geophysics

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