Monsoon covered most parts of East India including Bihar on June 19 with a delay of almost 10 days. By June 21, Eastern Uttar Pradesh was covered as well.
Though Monsoon has covered almost all of the eastern part of the country but delayed Monsoon over these areas did not give very impressive rainfall. Till June 26, only Sub Himalayan West Bengal, Sikkim and Eastern Uttar Pradesh were within the range of normal rainfall.
Until June 26, Sub Himalayan West Bengal and Sikkim observed 27 percent surplus rainfall than its normal. On the contrary, East Uttar Pradesh is witnessing 5 percent rain deficiency. The most deficient rainfall observed in the Eastern parts during the same time is by Odisha, Gangetic West Bengal and Jharkhand which are deficient between 24% and 33%.
These rains will not be enough to decrease the rain deficiency. Though, rainfall is again expected to pick up pace in parts of Uttar Pradesh from July 2. However, the month of June will still end on a rain deficient note.
Reason for this sudden dip in Monsoon rains in East India can be attributed to the formation of a low-pressure area over south Odisha and North Andhra Pradesh coast. Due to this, moisture and winds will remain concentrated around this low-pressure area leading to decrease in moisture over East India.
As per Skymet Weather, Monsoon is expected to remain subdued over most parts of East India, few pockets of East Uttar Pradesh, Bihar and Jharkhand. However, on and off scattered rains are expected to continue over Gangetic West Bengal, Odisha and Sub-Himalayan West Bengal.
By July 1, this weather condition will move in north-westerly direction towards Vidarbha and the flow of easterly winds will once again get restored over eastern parts of the country leading to increased moisture and rainfall act. Thus, it is expected that the next spell of rain will arrive by July 2.
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Please Note: Any information picked up from here must be attributed to skymetweather.com