Beat­ing re­treat? Not yet, says weath­er­man

For Just Third Time In 10 Years, Mon­soon Likely To Stay In Delhi Be­yond Septem­ber 30

The Times of India (New Delhi edition) - - Times City - Jas­jeev.Gand­hiok @times­group.com

New Delhi: Mon­soon is likely to stay longer in the na­tional cap­i­tal. It usu­ally re­treats from Delhi on Septem­ber 30, but ac­cord­ing to In­dia Me­te­o­ro­log­i­cal Depart­ment (IMD) of­fi­cials, it may be de­layed by nearly two weeks this year.

Mon­soon gen­er­ally re­treats from Ra­jasthan on Septem­ber 1, but IMD of­fi­cials said that the neigh­bour­ing state was still record­ing wet days this time. Hence, the sea­son of show­ers is likely to ex­tend in Delhi up to Oc­to­ber’s sec­ond week, which will co­in­cide with Dussehra days. In that case, you might have to carry an um­brella while do­ing pan­dal hop­ping across the city.

“In the past two years, we have seen the re­treat tak­ing place on Septem­ber 30, which is the usual date. How­ever, it will be de­layed by at least 1-2 weeks this year. We will once again as­sess the sit­u­a­tion on Oc­to­ber 5. A wet Dussehra is pos­si­ble this time,” Kuldeep Sri­vas­tava, sci­en­tist at IMD, told TOI.

Both in 2018 and 2017, the re­treat of mon­soon in Delhi was wit­nessed on Septem­ber 30, while it was de­layed by over a week in 2016 (Oc­to­ber 7, 2016). The mon­soon sea­son stayed for the long­est in Delhi in 2013, when the re­treat was de­clared on Oc­to­ber 17. Since 2010, the re­treat has only been de­layed twice.

Sri­vas­tava fur­ther said that they were closely study­ing the re­treat of mon­soon for Ra­jasthan, which be­gins in west Ra­jasthan from Septem­ber 1. Light spells of rain are still oc­cur­ring there, with an­other spell likely to lash the neigh­bour­ing state on Septem­ber 26 and 27 – push­ing Delhi’s date with mon­soon re­treat fur­ther ahead.

“In east Ra­jasthan, we are record­ing con­tin­u­ous mon­soon ac­tiv­ity and rain­fall at as many as 75 sta­tions. In west Ra­jasthan too, we are record­ing light spells. There is forecast for an­other spell of rain for two days from Septem­ber 26. Go­ing by the de­vel­op­ments there, we can safely say that Delhi will miss its nor­mal dead­line of Septem­ber 30 for re­treat, and the de­lay should be at least 1-2 weeks,” said Sri­vas­tava.

Mean­while, the cap­i­tal is reel­ing un­der a mon­soon deficit of 36%. Delhi has recorded a rain­fall deficit in all four months of June, July, Au­gust and Septem­ber.

Mon­soon reached the cap­i­tal a week late this year on July 5 as against the usual date of June 29. There was an 83% rain­fall deficit in the month of June. Only 11.2mm of rain­fall was recorded in the first month of mon­soon as against a nor­mal of 65.5mm. In July, 210.4 mm rain­fall was re­ceived as against a nor­mal of 276.1mm (24% deficit) and in Au­gust, 119.6mm was recorded as against a nor­mal of 247.4mm (52% deficit).

Un­til Septem­ber 23, 73.8mm of rain­fall has been recorded as against a nor­mal of 104.2mm, which is a deficit of 29%.

“There is a deficit of over 200mm so far this mon­soon sea­son with only 403.8mm of rain­fall recorded till Septem­ber 23 as against a nor­mal of 628mm. This deficit, how­ever, should come down due to a pro­longed mon­soon sea­son,” said a weath­er­man.

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