Monsoon remains elusive for Capital
New Delhi, June 27 -- An anti-cyclonic circulation continues to hold Delhi's monsoon hostage, delaying the season's arrival even as rains sweep across most of India. On Thursday, the India Meteorological Department (IMD) said the monsoon trough remained south of the Capital, preventing its northward push.
The city, instead, has been left reeling under persistent cloud cover and rising humidity.
For the past week, the monsoon has played a game of moving goalposts with the Capital. Last Friday, IMD said conditions were favourable for the monsoon to reach Delhi by Tuesday. On Sunday, the forecast was revised to say the onset would happen "in the next two days."
By Tuesday, the arrival was expected within 36 hours. When that window passed without its arrival, IMD said the monsoon would arrive within 24 hours - a prediction missed again.
Despite these forecasts, only scattered, very light rainfall has been recorded.
Meanwhile, monsoon winds continued to move across the rest of north India. On Thursday, the IMD said the rains had advanced into more parts of Rajasthan, Haryana and Punjab. But Delhi and narrow belts to its west and east remain dry, according to the latest monsoon map.
The weather office maintained that conditions were favourable for further advance of the southwest monsoon across the remaining parts of the country over the next 3-4 days.
As of Thursday, the northern limit of the monsoon was passing through Jaisalmer, Bikaner, Jhunjhunu, Bharatpur, Rampur, Sonipat, and Anup Nagar - leaving Delhi out.
"Cloudy conditions prevailed over Delhi during the past 3-4 days. Very light to light rainfall occurred at a few places," IMD officials said. They attributed the humid weather to persistent south-easterly winds driven by a seasonal trough south of the city.
However, what has prevented the monsoon from reaching Delhi is an anti-cyclonic circulation at the middle and upper atmospheric levels. "This ridge has dominated the wind and circulation pattern over Delhi, southwest UP and adjoining parts of Haryana and Rajasthan," IMD said. "This pattern is likely to change in the next 3-4 days as the east-west trough moves northward and the upper-level ridge weakens."
Former earth sciences ministry secretary M Rajeevan said model outputs continue to show monsoon arrival in Delhi by June 28 or 29, with the entire country set to be covered by June 30.
Delhi's normal monsoon onset date is June 27....
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