First published 9/25/2026, 1:58:15 PM · Last updated 9/25/2026, 1:58:15 PM

Light to Moderate rain with Thunderstorm with Lightning is likely to occur at isolated places over Chengalpattu, Chennai, Kancheepuram, Kanniyakumari, Ranipet, Tenkasi, The Nilgiris, Thiruvallur, Vellore in next 3 hours.

IMD-Chennai forecasts light to moderate rain with thunderstorms and lightning at isolated locations across several districts of Tamil Nadu within the next three hours. The bulletin lists the affected districts, labels severity as Moderate, and advises following SDMA guidelines.

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: 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).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 8/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

Residents and travelers in the named districts should follow SDMA guidance because thunderstorms with lightning are expected.

Location

Sources

Light to Moderate rain with Thunderstorm with Lightning is likely to occur at isolated places over Chengalpattu, Chennai, Kancheepuram, Kanniyakumari, Ranipet, Tenkasi, The Nilgiris, Thiruvallur, Vellore in next 3 hours.

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