First published 10/4/2026, 11:08:15 AM · Last updated 10/4/2026, 11:08:15 AM

Light to Moderate Rain with light Thundershower and lightning is likely to occur at isolated places over Chengalpattu, Chennai, Cuddalore, Erode, Kancheepuram, Karur, Krishnagiri, Madurai, Namakkal, Ranipet, Salem, Thiruvallur, Tirupathur, Tiruvannamalai, Vellore, Viluppuram, Virudhunagar in next 3 hours.

The alert forecasts light to moderate rain, light thundershowers and lightning at isolated places in the named Tamil Nadu districts within the next three hours. It identifies the severity as moderate and the event as expected.

Categories: severe-weather-and-natural-disasters

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: 2/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 3/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

The alert concerns forecast rain and lightning across multiple districts over the next three hours.

Location

Sources

Light to Moderate Rain with light Thundershower and lightning is likely to occur at isolated places over Chengalpattu, Chennai, Cuddalore, Erode, Kancheepuram, Karur, Krishnagiri, Madurai, Namakkal, Ranipet, Salem, Thiruvallur, Tirupathur, Tiruvannamalai, Vellore, Viluppuram, Virudhunagar in next 3 hours.National Disaster Management Authority (NDMA) / SACHET Usage terms

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