New Delhi, Wednesday, June 20 The monsoon has entered Bihar and Jharkhand yesterday after a long wait. Interestingly, the normal date of arrival of monsoon to these states is around June 12. The monsoon however lay still on the western front.
The northern limit of monsoon is now passing through Veraval, Navsari, Malegaon, Betul, Seoni, Ambikapur, Gaya, Patna and Raxol. The northern limit of monsoon is an imaginary line that connects places where the monsoon has reached at a given point in time.
A cyclonic circulation (upper air) over northwest Bay of Bengal and adjoining Gangetic West Bengal and Orissa coasts is still persists. This weather system together with a smaller circulation over east Uttar Pradesh will act as a catalyst to push the monsoon further north along the Indo-Gangetic plains.
Rain and thundershowers would occur at many places over Sikkim, West Bengal and Orissa during the next twenty four hours. Heavy rain may also occur at one or two places. . Rain will however be a little less intense over Bihar, Jharkhand and east Uttar Pradesh.
An off shore trough is running along the south Konkan to Kerala coasts. These parts of the west coast will receive good rainfall. Rainfall will be light and scattered to the north of Konkan.
There is no fresh surge in southwesterly monsoon winds over south peninsula causing rainfall in south peninsula will remain subdued. The winds are however likely to change over Arabian Sea, a positive signal for rejuvenation of monsoon over peninsula.
Westerly winds are prevailing over northwest India and blocking a relaxation in temperatures by disallowing cooler winds to take charge. North Rajasthan, Haryana, Delhi, west Uttar Pradesh, Punjab, plains of Himachal Pradesh and Uttarakhand will continue to reel under intense heat more days to come.
