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The India Meteorological Department (IMD) has issued a detailed alert predicting widespread rainfall and thunderstorms across several parts of southern and eastern India over the coming week. As per the report, the weather condition is expected to continue through October 26. Multiple regions in the southern peninsula, including Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, Telangana, and the Lakshadweep Islands, are likely to witness light to moderate rain, heavy downpours, and isolated very heavy rainfall accompanied by thunderstorms, lightning, and gusty winds.
According to the IMD’s significant weather features bulletin, this spell of widespread precipitation marks a surge in northeast monsoon activity, which has begun to influence the southern coastal and interior regions of the country. The IMD has also issued flash flood warnings for several districts across Tamil Nadu, Kerala, and Andhra Pradesh. Residents and travellers are advised to practice caution. Refrain from travel, if not necessary.
Heavy rainfall forecast for South Peninsular India: In detail
The IMD report indicates that light to moderate rainfall or thunderstorms are likely at many places across Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, Telangana, and the Lakshadweep Islands till October 26. The intensity of rainfall is expected to vary, with isolated heavy to very heavy rainfall over certain pockets.
- Tamil Nadu, Puducherry and Karaikal: The state and the Union Territory are expected to see heavy to very heavy rainfall till October 23, particularly along coastal and adjoining interior districts. Places like Chennai, Cuddalore, Nagapattinam, and Tiruvallur are likely to witness significant rainfall during this period.
- Kerala and Mahe: Very heavy rainfall is predicted from October 22 to 24, especially in the central and northern districts such as Idukki, Wayanad, Kozhikode, and Malappuram. Travel with caution.
- Karnataka: The Coastal Karnataka and interior districts are expected to experience intermittent heavy rainfall till 25. South interior Karnataka, including Bengaluru, Mysuru, and Hassan, may also face thunderstorms and gusty winds on October 24–25.
- Andhra Pradesh and Rayalaseema: The coastal and southern districts will likely face continuous wet weather through the week. Very heavy rain is anticipated between October 22 and 25. Regions like Chittoor, Kadapa, and Nellore are also going to be affected.
- Telangana: The state is expected to experience heavy rainfall from October 23–25, along with lightning and localised gusty winds. Travel with caution.
Odisha and adjoining areas are also likely to receive thunderstorms with lightning till October 24. Similarly, Madhya Pradesh, Vidarbha, and Chhattisgarh, particularly from October 21–23 are also expected to experience similar weather conditions. For coastal areas, the IMD has advised caution for residents and fishermen.
Over western India, including Konkan, Goa, Marathwada, and parts of Maharashtra, thunderstorms with lightning are likely till October 22. While the rainfall will be localised and less intense compared to the southern states, the IMD suggests travellers and farmers remain cautious.
In northern India, a brief spell of thunderstorm activity is expected across Himachal Pradesh, and Uttarakhand on October 21.
Flash flood risk and warnings
The IMD has issued a low to moderate flash flood risk for several districts in Kerala, Tamil Nadu, and Andhra Pradesh’s Rayalaseema region on October 21.
- In Kerala, districts such as Idukki, Wayanad, Kozhikode, Kottayam, Palakkad, Pathanamthitta, and Malappuram have been identified as vulnerable due to saturated soil and ongoing heavy rainfall.
- In Rayalaseema, Chittoor and Kadapa are under similar risk, while in Tamil Nadu, the warning extends to Chennai, Cuddalore, Nagapattinam, Puducherry, Kanchipuram, Tiruchirappalli, and Madurai.
