GANGTOK, 17 June: The South-West Monsoon finally set over Gangtok on 11 June and had enveloped the state by 14 June. It still took till Thursday, 16 June, for rain to come down with any substantial intensity and the drizzle has stayed since then. This year the monsoon reached Sikkim seven days late. The south-west monsoon entered India through Kerala on 01 June.
A massive low pressure formed over Bay of Bengal on 14 June and due to this deep depression near Kolkata there was a heavy rainfall over Kolkata and Sub-Himalayan West Bengal. This has caused flooding in Kolkata, brought heavier rainfall over the lower hills of Darjeeling district and brought down precipitation over Sikkim.
A massive low pressure formed over Bay of Bengal on 14 June and due to this deep depression near Kolkata there was a heavy rainfall over Kolkata and Sub-Himalayan West Bengal. This has caused flooding in Kolkata, brought heavier rainfall over the lower hills of Darjeeling district and brought down precipitation over Sikkim.