Intense rain activities are going on over many parts of Northeastern states. Most of the districts in Assam are flooded due to incessant rain. Normal day to day life has been affected in Arunachal Pradesh and Meghalaya as well. Moderate to heavy showers may continue over Meghalaya and western parts of Assam until May 22nd. Rest of Northeast India may also receive light to moderate rain activities.
There will be significant reduction in rain over northeastern states from May 23rd. However, light rain with one or two moderate spells may continue thereafter as well until onset of Monsoon which will be in the first week of June.
Between March 1 and May 20, Bihar and West Bengal are in normal rain category in East India. Bihar has received 7% surplus whereas West Bengal is surplus by 13%. Jharkhand is deficient and east Uttar Pradesh is large rain deficient.
A trough is developing across Indo Gangetic Plains from Haryana to Meghalaya across east Uttar Pradesh, South Bihar and West Bengal. There may be light scattered rain and thunderstorm over Eastern parts of Uttar Pradesh, Bihar, Jharkhand, West Bengal and parts of Odisha on May 21st and 22nd.
Intensity of rain may increase significantly over many parts of Uttar Pradesh on May 23rd. However light rain with one or two moderate spells may continue over Bihar and West Bengal. Rain will be isolated over Jharkhand and Odisha on May 23rd.
Pre monsoon rain and thunderstorm you will continue over many parts of East India until May 24th thereafter, weather activities will subside. We do not expect heat wave to make a comeback until first week of June over East India.