During afternoon and evening of May 20, many parts of Delhi, Haryana, north Rajasthan and parts of West Uttar Pradesh experienced dust storm, thunderstorm and rain activities. Moderate to strong winds also prevailed over parts of Northern place including Delhi. Between 15:00 and 19:00 hours Delhi witnessed strong winds in the range of 40 to 50 kmph.
A cyclonic circulation is persisting over Haryana and adjoining area and a western disturbance is moving across the Western Himalayas. Another Western disturbance may approach Jammu Kashmir by May 22nd. A trough will also extend across Indo-Gangetic Plains up to east India. In the wake of these weather systems, we expect scattered promotion activities to continue over parts of Punjab, Haryana, North Rajasthan, Delhi and West Uttar Pradesh until May 24. There may be isolated moderate to heavy spells on May 23rd at isolated pockets of Punjab, Haryana, Delhi and Uttar Pradesh.
Heat wave will abate from entire North India during this period. Temperatures of Northern Plains may start increasing from May 26th. What we do not expect the heat wave to make a comeback until end of May.