Science

IMD forecast above normal temperature during March-May

Sunderarajan Padmanabhan New Delhi | Updated on March 01, 2019 Published on March 01, 2019

IMD declares heat wave conditions whenever the temperatures go five degrees above normal or it crosses 42 degrees Celsius irrespective of the departure from the mean.   -  THE HINDU

There may not be much change in the number of heat wave spells in core heat wave zone, says the report

The India Meteorological Department has forecast during the March to May season average temperatures are likely to be above normal over the southern part of west coast and some areas in north-west and north-east India.

In its first report on seasonal outlook for temperatures during hot season (for the period from March to May) released here today, the country’s apex weather agency said Uttarakhand could be the worst off.

In the Himalayan state, while the season averaged mean and the minimum temperatures are likely to be 0.5 degree Celsius to one degree Celsius above normal, the season averaged maximum temperature is likely to be worse, at more than one degree Celsius above normal.

Uttarakhand could be followed by Himachal Pradesh, West Rajasthan, coastal Karnataka, Kerala and Arunachal Pradesh. Here, the situation could be better than the hilly State but not as good as compared to the rest of the country. In these States, all the three parameters – season averaged mean, maximum and minimum temperatures are likely to be 0.5 degree Celsius to one degree Celsius above normal.

It could be a mixed bag in Konkan and Goa. In this region on the west coast, the season averaged maximum temperatures are likely to be 0.5 degree Celsius to one degree Celsius above normal. However, the season averaged mean and minimum temperatures would be near normal.

The situation could be reverse in Saurashtra, Tamil Nadu and coastal Andhra Pradesh. In these areas, the season averaged minimum temperatures are likely to be 0.5 degree Celsius to one degree Celsius above normal, while season averaged mean and maximum temperatures are likely to be near normal.

Heat wave spells

The report on the seasonal outlook has also noted that this year there may not be much change in the number of heat wave spells in the core heat wave zone, which covers Punjab, Delhi, Haryana, Uttar Pradesh, Madhya Pradesh, Gujarat, Chattisgarh, Bihar, Jharkhand, West Bengal, Odisha and Telengana, besides Uttarakhand, Himachal Pradesh, and Rajasthan.

 

Additional Director General of IMD and Head of Services, M Mahapatra, said the meteorological sub-divisions in the region witness an average of about five heat wave episodes during the three months. Similar number of episodes is likely this year also. IMD declares heat wave conditions whenever the temperatures go five degrees above normal or whenever the temperatures cross 42 degrees Celsius irrespective of the departure from the mean.

Speaking to India Science Wire, IMD Director General, KJ Ramesh, said an updated outlook will be issued next month for the period from April to June. IMD has been issuing seasonal forecast outlook for sub-division scale temperatures over the country for both hot and cold weather seasons since 2016.

Twitter handle: @ndpsr

(India Science Wire)

Published on March 01, 2019
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