Chennai Weather: Intense Overnight Downpour Lashes TN Capital; Korattur Records 94.2 mm Rain
Chennai and its suburbs were lashed by intense, widespread thunderstorms last night, bringing significant rainfall to the region in a short span. The late-night showers provided a much-needed respite from the heat but also highlighted the intensity of the current weather system, with more rain forecast for the coming days.
Chennai Rains
Data released by the Tamil Nadu Disaster Risk Reduction Agency reveals the extent of the downpour between 8:30 AM on Friday and 8:30 AM this morning. The Korattur area in Chennai recorded the highest rainfall, with one gauge station measuring an impressive 94.2 mm and another nearby station registering 84.3 mm.
Several other areas also experienced heavy spells. Okkiyam Thoraipakkam received 71.1 mm, while Ayapakkam and Kannagi Nagar recorded 68.1 mm and 66.6 mm respectively. Other localities, including Injambakkam (65.1 mm), Manali (55.8 mm), and Nerkundram (55.8 mm), also saw significant rainfall. Weather enthusiasts noted that much of this rainfall occurred within just one hour of intense showers, indicating the storm's severity.
Weather experts predict that this is not a one-off event. The current conditions, influenced by an upper air circulation (UAC), are expected to bring more thunderstorms to North Tamil Nadu, including Chennai, today and over the next couple of days.
How It Rained in TN Capital
| Source | District | Raingauge station | Rainfall recorded in mm |
| GCC | Chennai | Z 07 Korattur (W 84) | 94.2 |
| GCC | Chennai | Z 07 Korattur (W 86) | 84.3 |
| GCC | Chennai | Z 15 Okkiyam Thoraipakkam (W 195) | 71.1 |
| GCC | Chennai | Z 07 Ayapakkam (W 85) | 68.1 |
| GCC | Chennai | Z 15 Kannagi Nagar (W 196) | 66.6 |
| GCC | Chennai | Z 15 Injambakkam (W 194) | 65.1 |
| GCC | Chennai | Z 02 Manali (W 18) | 55.8 |
| GCC | Chennai | Z 11 Nerkundram (W 144) | 55.8 |
| GCC | Chennai | Z 02 Manali (W 19) | 50.1 |
| GCC | Chennai | Z 14 Madipakkam (W 188) | 49.2 |
| GCC | Chennai | Z 05 Chennai central (W 58) | 48.6 |
| GCC | Chennai | Z 08 Anna Nagar West (W 95) | 45.9 |
| GCC | Chennai | Z 16 Sholinganallur (W 197) | 45.8 |
| GCC | Chennai | Z 13 Velachery (W 178) | 45.6 |
| GCC | Chennai | Z 02 Manali (W 21) | 43.5 |
| GCC | Chennai | Z 02 Manali New town (W 16) | 42 |
| GCC | Chennai | Z 02 Manali New town (W 15) | 41.2 |
| GCC | Chennai | Z 07 Ambattur (W 81) | 40.5 |
| GCC | Chennai | Z 01 Wimco nagar (W 05) | 39.9 |
| GCC | Chennai | Z 11 Valasaravakkam (W 149) | 37.8 |
| GCC | Chennai | Z 14 Perungudi (W 184) | 35.4 |
| GCC | Chennai | Z 01 Thiruvottiyur (W 11) | 35.4 |
| GCC | Chennai | Z 06 Perambur (W 67) | 35.1 |
| GCC | Chennai | Z 15 Uthandi (W 200) | 34.2 |
| GCC | Chennai | Z 14 Madipakkam (W 169) | 33 |
| GCC | Chennai | Z 13 Adyar (W 175) | 31.2 |
"Under favourable conditions widespread rains likely over Peninsular India. For the next three-four days north Tamil Nadu things look good for thunderstorms. Hopefully Chennai and suburbs will get at least one day of widespread rains," noted weather blogger Chennai Rains in a post on X (formerly Twitter).
Meanwhile, the Regional Meteorological Centre (RMC) has issued official warnings. For today, a heavy rain alert is in place for Theni, Tenkasi, the Ghat areas of Tirunelveli, Kanyakumari, Tiruvallur, Ranipet, Vellore, and Tiruvannamalai.
Looking ahead, the RMC also predicts heavy rainfall over the next few days in Kanchipuram, Tiruvallur, Chennai, Chengalpattu, Villupuram, Tenkasi, Tirunelveli, and Kanyakumari. Residents are advised to stay updated with the latest weather bulletins as the active monsoon spell continues over the region.
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