Northerly winds from the Himalayan region would penetrate into north, northwest, central and east India during the next couple of days. These pleasant winds will bring down both day and night temperatures marginally over these regions. Thereafter, resumption of both northwesterly to westerly winds would drive the mercury up here.
Temperatures in Delhi will first fall in the next 24 hours and make a comeback thereafter. Temperatures will be at similar levels to what they are today or the last two days. Day’s maximum of 40 degrees at Palam and 39.2 degrees at Safdarjang observatory were recorded on April 30.
Rain will continue over east India in West Bengal, Sikkim and northeast in the upcoming two days. Rain will occur at a few places in sub-Himalayan West Bengal, Sikkim, Assam, Arunachal Pradesh, Meghalaya, Manipur, Mizoram, Nagaland and Tripura.
A trough of low pressure persists, extending from Assam and Meghalaya to south Chhattisgarh across Gangetic West Bengal and Orissa. Under the aegis of this weather system, rain will occur at one or two places over Gangetic West Bengal, Orissa, Chhattisgarh and north coastal Andhra Pradesh during the period.
Extreme south Peninsula, Kerala, Karnataka and Tamil Nadu will continue to receive rain during the next couple of days. The trough that runs from north Karnataka to south Tamil Nadu will remain intact during this period. Moist winds from the Arabian Sea in form of southwesterly and southeasterly winds from the Bay of Bengal are colliding in these areas to bring rain.