Rainfall activities along the Indo-Gangetic plains have been contrasting until now. Punjab, Haryana, Delhi, and west Uttar Pradesh are rain surplus. East Uttar Pradesh, Bihar, Jharkhand, and West Bengal are still waiting for a good spell of rain.
A combination of Western disturbances, the axis of the monsoon trough, and the occasional development of cyclonic circulations over North Pakistan and adjoining areas are responsible for surplus rain over North India. The low-pressure areas which continued over the west Central Bay of Bengal kept the eastern end of the monsoon trough to the south of its normal position, leading to drier than normal weather in East India.
The axis of the monsoon trough is now moving over the Indo-Gangetic plains. We expect rain activities to intensify over parts of Punjab, Haryana, Delhi, Uttar Pradesh, Bihar Jharkhand, and West Bengal. We think that the rain deficiency of East India will be covered to a large extent during the first 10 days of August.
