Pre-monsoon activity is on the rise in South India. Currently, the semi-permanent feature of the north-south trough over the interiors of Peninsular India is very active. Parts of Tamil Nadu, Kerala and South Interior Karnataka have received moderate to heavy showers. Heavy showers have extended to Coastal Andhra Pradesh and neighbouring Telangana, as well. Similar conditions will prevail for the next 3 days and intensify, thereafter.
A cyclonic circulation is coming up over a wider area, covering southern parts of Tamil Nadu and Kerala, the Gulf of Mannar and the southwest Bay of Bengal, off the Tamil Nadu coast. This circulation is likely to form on 20th May and will meander over the region for the next three days, between 20th and 22nd May. Later, it will move northward along the coast and shift over the sea by 24th May.
Under the influence of seasonal trough and cyclonic circulation, a confluence zone is likely to form, all along Kerala and the interiors of Tamil Nadu. Very heavy rains are likely over Kerala between the 20th and 22nd of May 2024. Moderate to heavy rains will continue, later also for the subsequent 48 hours. Flooding rains may occur all along the coastline of Kerala, interiors and mountain areas of the state. Locations at risk will include Thiruvananthapuram, Punalur, Alappuzha, Kollam, Kochi, Kottayam, Thrissur, Kozhikode, Wayanad, Kannur and Kasaragod.
Incessant rains and heavy thundershowers may be disrupting normal life. Torrential rains and strong winds could be damaging life and material resources. Flooding and inundation are quite likely in some areas. Connectivity may also get disrupted. Water bodies are expected to overflow and excess flow in the rivers and streams may be forceful enough to harm the assets. Exercise caution to safeguard life and property.
