The India Meteorological Department (IMD) has issued a heavy-rain warning for southern India, signalling widespread rainfall and thunderstorms over the coming days. The alert remains in force until October 26 and covers the states of Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, Telangana and the Lakshadweep Islands.
This uptick in rainfall is driven by the ongoing northeast monsoon. It means residents and tourists alike in the region must stay vigilant, follow local warnings closely and avoid non-essential travel in high-risk areas.
Regional Forecasts: Rain, Flood and Thunder Risks
Kerala & Mahe
From October 22 to 24, very heavy rainfall is expected in districts such as Idukki, Wayanad, Kozhikode and Malappuram. With soil already saturated, the risk of flash floods increases substantially. Residents are urged to monitor local updates, steer clear of low-lying zones and postpone travel when possible.
Andhra Pradesh & Rayalaseema
Continuous rainfall is expected through October 25, especially in coastal and southern districts like Chittoor, Kadapa and Nellore. Localised flooding is possible, and communities are advised to stay indoors and heed official instructions until weather conditions improve.
Tamil Nadu, Puducherry & Karaikal
Heavy to very heavy rain is forecast until October 23, especially along coastal districts including Chennai, Cuddalore, Nagapattinam and Tiruvallur. A thunderstorm advisory includes lightning and strong winds — limiting travel and following local authority advisories are strongly recommended.
Karnataka
Both coastal and interior districts will face bouts of heavy rainfall. From October 24–25, regions like Bengaluru, Mysuru and Hassan may experience thunderstorms and gusty winds. Travellers should watch for sudden changes and stay updated via official weather alerts.
Telangana
Expected to see heavy rain with lightning and gusts between October 23–25. Outdoor activity should be limited. Communities should prepare by securing property and keeping up with local disaster management advisories.
Beyond the South: Eastern, Central and Western Regions
The northeast monsoon also affects other parts of the country:
- The Andaman & Nicobar Islands will see multiple rain spells between October 21–26 with gusty winds of 30-50 km/h — maritime activities should be limited.
- In Odisha, thunderstorms and lightning are forecast until October 24; Madhya Pradesh, Vidarbha and Chhattisgarh face similar risks from October 21–23.
- Western India, including Konkan, Goa and parts of Maharashtra, may see isolated thunderstorms until October 22.
- In the north, brief thunderstorms are possible in Himachal Pradesh and Uttarakhand on October 21. Authorities in these areas advise caution and close monitoring of local warnings.
Flash-Flood Trouble Spots
Several districts face elevated flash-flood risk due to heavy rain plus saturated soils:
- In Kerala: Palakkad, Kottayam, Malappuram, Idukki, Pathanamthitta, Kozhikode and Wayanad.
- In Rayalaseema: Chittoor and Kadapa.
- In Tamil Nadu: Coastal and interior districts such as Chennai, Cuddalore, Nagapattinam, Puducherry, Kanchipuram, Tiruchirappalli and Madurai.
If you are in these zones, move to higher ground when needed, keep emergency contacts and supplies ready, and follow evacuation instructions without delay.
Safety Tips During the Monsoon
- Limit travel during periods of heavy rainfall, thunderstorms or flooding.
- Stay indoors during thunderstorms and avoid open spaces, tall trees or metal objects.
- Ensure essential supplies (water, batteries, medicines) are on hand and anticipate disruptions in power or communications.
- If you live in flood-prone or river-adjacent areas, identify safe zones in advance and plan for a quick move.
- Stay informed via local disaster management authorities and official weather updates.
What Travellers Should Know
For tourists exploring southern India:
- Avoid scheduling outdoor excursions and coastal boat trips during the alert period.
- Keep flexible travel plans — accommodation and transport may face delays or disruptions.
- Choose destinations in less affected regions or plan indoor activities while alerts remain active.
- Carry waterproof gear, check local forecasts daily and stay in touch with your hotel or guide headquarters.
Summary & Takeaway
The IMD’s heavy-rain warning is a clear sign of the northeast monsoon’s strength in southern India. With heavy rainfall, thunderstorms and flash-flood risks spanning multiple states, public safety hinges on following official guidance and avoiding unnecessary risk. Whether you live in or plan to visit the region, staying alert, limiting travel and respecting local advisories will help weather this intense period more safely.
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