"Southwest monsoon has set in over Kerala and Lakshadweep," said K Santosh, head of India Meteorological Department's (IMD) Thiruvananthapuram regional centre.
It has also advanced into most parts of Tamil Nadu, some parts of south interior Karnataka and remaining parts of south Bay of Bengal, according to IMD
Several parts of Kerala have been receiving heavy rains since last night which left a 36-year-old man dead due to landslip in Idukki district of Kerala.
To declare the onset of monsoon over Kerala, the IMD has three important parameters.
The 14 stations at which the rainfall is being monitored for declaring the Monsoon onset over Kerala have reported widespread rainfall for the last 48 hours with more than 60 per cent of stations recording rainfall on June 7 and 8
The Westerly/ West-southwesterly winds of the order of 30-40 kmph were observed upto 600 hPa (approximately upto 4.5 km) over the south Arabian Sea.
"All these three conditions got fulfilled for the first time today i.E. June 8 since the monitoring was started by IMD from May 10. As a result, the Southwest Monsoon has set in over Kerala, today, the 8 th June 2016.
"The Southwest Monsoon has further advanced into remaining parts of south Arabian Sea, Maldives Comorin area, most parts of Kerala and Tamil Nadu, some parts of south interior Karnataka, remaining parts of south Bay of Bengal and some more parts of central Bay of Bengal," the IMD said.
The usual date for onset of monsoon is June 1.
The season is also expected to witness "above normal" rainfall after two consecutive seasons of weak monsoon.
In 2015, the monsoon deficiency was 14 per cent with Northwest India recording a deficiency of 17 per cent, followed by 16 per cent in Central India, 15 per cent in Southern Peninsula and 8 per cent in East and North-east India.
In 2014, the monsoon deficiency was 12.3 per cent of the LPA.
Due to poor monsoon in 2015-16 crop year (July-June), 10 states have declared drought.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
