A wet handkerchief comes in handy in Jamshedpur on a hot Tuesday. (Bhola Prasad)
Rain, rain come again, but only with monsoon gain.
Residents of Ranchi and Jamshedpur, who had gone into raptures after Monday night’s surprise showers, may do good to tweak the rain rhyme because weathermen on Tuesday stressed there would be no respite from the hot and humid weather for at least another three days.
And, even though isolated pockets of Jharkhand will continue to experience local rain and thunderstorm activity during the next 72 hours to keep the heat wave at bay, lasting relief can be expected only after the southwest monsoon arrives sometime next week.
“There won’t be any change in the discomfort people are feeling for 72 hours. There will be no widespread rainfall until June 13 while maximum temperatures will hover between 40°C and 42°C in most parts of Jharkhand,” said A.K. Sen, the director of Patna Meteorological Centre.
Monday’s brief downpour coupled with thunder and lightning at many places has been attributed to local area development. Met offices recorded 13.4mm rainfall in Ranchi, 19mm in Jamshedpur and 20mm in Daltonganj. However, Tuesday was once again a heat-and-sweat torment.
Chart analysis revealed that the wind pattern had changed to either easterly or southerly at several places since Monday night. This is resulting in moisture incursion into the atmosphere.
Director of Ranchi Meteorological Centre B.K. Mandal said that the average relative humidity was around 70 per cent on Tuesday. While Jamshedpur and its adjoining areas recorded over 80 per cent, it was over 60 per cent in Ranchi and its neighbouring districts. The figure in Daltonganj and some other districts was 75 per cent.
High humidity pushed up the discomfort index too. Jamshedpur recorded a DI of 66 degrees, 11 notches above normal, the highest in the steel city this summer. The DI stayed between 60 and 64 degrees at other places including Ranchi.
Met officials said the southwest monsoon was advancing slowly.
“The Arabian Sea component has picked up momentum but the Bay of Bengal arm is still slow. The normal date of arrival of monsoon in Jharkhand is June 10. This year, it is going to be delayed by 8-10 days, suggests our observations,” said Ranchi Met office director Mandal.
He added that as of now, they find no signs of any atmospheric circulation over the Bay of Bengal which can add momentum to the sluggish monsoon currents.