Satellite Imagery Shows Unusual 2020 Heatwave in India 

The temperature has crossed the scale of 47-degrees Celcius in many regions. In Churu 49.6 degrees, Celsius is recorded on May 28, which was 50 degrees Celcius on May 26. The Palam Observatory of Delhi has recorded maximum temperature at 47.2 degrees Celcius on May 27. 

Satellite Imagery Shows Unusual 2020 Heatwave in India 
Image: UNI

Satellite imagery shows unusual 2020 Heatwave in India 

From devastating cyclone to the burning heatwave spell, the Indian states are experiencing extreme climatic conditions in 2020. Heatwaves occur between March and June every year, engulfing almost all of the Northern and Central regions of India. 

The temperature has crossed the scale of 47-degrees Celcius in many regions. In Churu 49.6 degrees, Celsius is recorded on May 28, which was 50 degrees Celcius on May 26. The Palam Observatory of Delhi has recorded maximum temperature at 47.2 degrees Celcius on May 27. 

Source: India Meteorological Department 

NASA has also released a series of satellite images showing a yellowish blanket across India. The study was done for the past 30 days, and the intense heatwave is clearly visible. 

 

Land surface temperatures captured via satellite imagery on April 1 (left) and May 26 (right). Photo courtesy: Nasa Worldview

How the winds bring change in temperature 

There were about 20 disturbances from the West that had a significant effect on local weather. The Western disturbances are due to cyclonic storms originating in the Mediterranean Sea and passing through Central Asia. As per Indian Meteorological Department predictions, the maximum temperature is likely to recede from May 28 onwards over the Northern Plains. The spike in temperature is because of the prevailing dry winds over Northwest, Central, and adjoining interior parts of India. 

Indian Meteorological Department has categorized Core Heatwave Zones that include Rajasthan, Punjab, Haryana, Delhi, West Madhya Pradesh, Uttar Pradesh, Coastal Andhra Pradesh and other regions. According to studies, these CHZs experience at least six heatwave days in a year from March to June. The mercury has touched the maximum mark in most of these regions. 

Source: IMD

Apart from heatwaves in northern India, heavy rainfall is expected at Assam, Meghalaya and Arunachal Pradesh. IMD has also issued a red alert in these states till May 28.

The soaring temperature is a matter of concern for the labourers migrating due to pandemic. The substantial reduction of heatwave conditions from May 29 could bring relief to people.