Heat Waves in Some Regions of India

Heat waves are periods of abnormally high temperatures that exceed the normal maximum summer temperatures in northwest and south-central India in summer.

Heat Waves in Some Regions of India

09 April 2021 Current Affairs:Heat wave conditions are likely to occur in isolated regions of Rajasthan, Vidarbha and within Tamil Nadu.
Highlights:
♦ The Indian Meteorological Department (IMD) has forecasted heat wave conditions in certain areas of Rajasthan and isolated areas in the eastern region of Vidarbha and within Tamil Nadu.
♦ Heat waves are periods of abnormally high temperatures that exceed the normal maximum summer temperatures in northwest and south-central India in summer.
♦ According to IMD, if the maximum temperature of a station reaches at least 40 degree celsius or higher, and a hilly area reaches at least 30 degree celsius or higher.
Based on departure from normal conditions:
♦ Heat wave: departure from normal temperature is 4.5 degree celsius to 6.4 degree celsius
♦ Strong heat wave: departure from normal temperature> 6.4 degree celsius 
According to the actual maximum temperature:
♦ Heat wave: when the actual maximum temperature is ≥45 degree celsius 
♦ Strong heat wave: when the actual maximum temperature is ≥47 degree celsius
♦ If at least two stations in the meteorological zone meet the above conditions for at least two consecutive days, it will be announced on the next day. In India, heat waves mainly occur from March to June, and in rare cases even in July. The peak month is May.
♦ During the period from March to June, heat waves usually occur on the plains of northwest, central, east, and northern India peninsulas. Heat waves can have adverse health effects, including dehydration, heat cramps, heat exhaustion and/or heat stroke.
 

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