A low-pressure area that formed over the north Bay of Bengal on June 12, has moved in the West-Northwest direction. Now it is lying over Eastern parts of Uttar Pradesh. This low-pressure area along with the east-west trough extending from Punjab to the north Bay of Bengal is responsible for moderate to heavy showers over eastern parts of the country.
For the last 3 to 4 days, West Bengal, Bihar, Jharkhand, east Uttar Pradesh, and parts of Odisha have been receiving moderate to heavy downpours. Chhattisgarh, east Uttar Pradesh, and part of Vidarbha have also received moderate rain with few heavy spells. The low-pressure area has pushed the monsoon current up to Madhya Pradesh, east Uttar Pradesh, foothills of West Uttar Pradesh, and western Himalaya. Monsoon reached over these states well before time.
Monsoon current in the form of strong easterly winds will continue to give moderate to heavy rain over eastern parts of the country as well as Chhattisgarh, East Madhya Pradesh, and parts of East and Central Uttar Pradesh for at least next 4 to 5 days. Therefore, active monsoon conditions may continue over these states. As of now, Bihar Jharkhand, Madhya Pradesh, and East Uttar Pradesh are a large rain surplus. Rain surplus of these states will increase further by the weekend.
Progress of monsoon over Northwest India, such as Delhi, Haryana Punjab, and North Rajasthan will be delayed due to approaching mid-latitude westerly winds.