First published Oct 21, 2026, 6:45:16 AM UTC · Last updated Oct 21, 2026, 6:45:16 AM UTC

Thunderstorms and lightning

Thunderstorm This Afternoon in Jawa Timur

Reported by Indonesia BMKG Weather Alerts

Thunderstorms and heavy rain are forecast for parts of Jawa Timur from 13:20 to 16:20 WIB on 21 October 2026. The alert warns of reduced visibility, strong winds, and localized flooding, and advises vigilance and precautions.

At a glance

Affected location: Jawa Timur

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Why it matters

The alert advises people in the affected areas to limit outdoor activities and take precautions during the forecast 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: 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: 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 Afternoon in Jawa 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.

Nearby · within 200 km
Thunderstorm This Afternoon in Jawa TimurOct 21, 2026, 5:50 AM UTC
Thunderstorms and heavy rainfall are forecast from 13:20 to 16:20 WIB on 21 October 2026 in parts of Jawa Timur, including the named districts; the source also warns of possible reduced visibility, strong winds, and localized flooding. The public is advised to remain vigilant, limit outdoor activities, and take precautions.
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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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Thunderstorm This Evening in BantenOct 21, 2026, 8:25 AM UTC
Thunderstorms and heavy rainfall are forecast from 15:35 to 17:00 WIB on 21 October 2026 in parts of Banten, including six named areas. Reduced visibility, strong winds, and localized flooding are possible.
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Thunderstorm This Evening in Kep. RiauOct 21, 2026, 8:20 AM UTC
Thunderstorms and heavy rainfall are forecast across named areas of Kep. Riau on 21 October 2026, from 15:30 to 17:30 WIB. The advisory recommends vigilance, limiting outdoor activity, and taking precautions.
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Thunderstorms and Heavy Rain Forecast in West Sumatra on 21 OctoberOct 21, 2026, 8:20 AM UTC
Thunderstorms and heavy rainfall are forecast in parts of Sumatera Barat from 15:30 to 17:30 WIB on 21 October 2026, with possible reduced visibility, strong winds, and localized flooding. The public is advised to remain vigilant, limit outdoor activities, and take precautions.

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