Delhi recorded the season's lowest minimum temperature of 4.4 degrees Celsius on Wednesday morning. Giving this information, the officials said that due to dense fog, the visibility was reduced to 200 metres, affecting road and rail transport.
New Delhi: Delhi recorded the season’s lowest minimum temperature of 4.4 degrees Celsius on Wednesday morning. Giving this information, the officials said that due to dense fog, the visibility was reduced to 200 metres, affecting road and rail transport.
A railway spokesperson said at least 19 Delhi-bound trains were running late by one-and-a-half hours to four-and-a-half hours due to the fog. The India Meteorological Department (IMD) has shared satellite images showing a thick layer of fog in the Indo-Gangetic plains and adjoining central and eastern parts of India.
An IMD official said a thick blanket of fog enveloped the Gangetic plains. It is likely to remain for the next two-three days. After that it will gradually decrease.
The Palam observatory at the Indira Gandhi International Airport recorded a visibility of 200 meters at 5.30 am on Wednesday. According to the India Meteorological Department (IMD), ‘very dense fog’ when visibility is between zero and 50 metres, ‘dense fog’ between 51 meters and 200 metres, ‘moderate fog’ between 201 meters and 500 meters and 501 metres. It is considered ‘light fog’ when it is between 1,000 and 1,000 metres.
The Safdarjung Observatory, Delhi’s main weather station, recorded a minimum temperature of 4.4 degrees Celsius, three notches below normal on Wednesday. The IMD predicted cold wave conditions in the national capital on Thursday and the temperature could drop as low as four degrees Celsius. Delhi recorded a cold day on Tuesday with the maximum temperature dropping by five points above normal at many places including Lodhi Road, Palam, Zafarpur and Mayur Vihar.
According to the IMD, a cold wave is declared when the minimum temperature reaches four degrees Celsius. Cold wave is declared even when the minimum temperature is 10 degrees Celsius or less and is 4.5 degrees below normal. A ‘severe’ cold wave is declared when the minimum temperature is two degrees Celsius or below normal by 6.4 degrees Celsius.
A ‘cold day’ occurs when the minimum temperature is equal to or less than 10 °C above normal. The maximum temperature is at least 4.5 degree Celsius below normal. A ‘severe cold day’ is when the maximum temperature is 6.5°C or more below normal.
According to Weather department reports predicts dense to very dense fog and cold days over northwest India for the next four-five days. According to this, the cold wave may continue over northwest India for the next two days and after that it may increase further.