Alert Sounded By IMD For Extreme Heat Wave In Parts Of North India


New Delhi: The India Meteorological Department (IMD) has issued alert for extreme heat wave in west Rajasthan, Haryana, Delhi and Chandigarh. India continues to reel under the impact of extreme weather events, heat waves developed across northwest and central India.

Heat wave conditions were also experienced in Madhya Pradesh, Vidarbha in Maharashtra, East Rajasthan, Gujarat, Madhya Pradesh, Himachal Pradesh, Uttarakhand, and Uttar Pradesh.

Palam experienced the first heat wave of the season on Wednesday as the mercury level touched 45.2 degrees Celsius. The rest of Delhi reeled under near-heat wave conditions, missing the benchmark by just one degree.

IMD has issued a warning of heat wave in Delhi over the next four days as well and temperatures could soar to 45 degrees Celsius by Sunday, the regional weather forecasting centre has warned.

“Hot winds from the west, a clear sky and scarcity of moisture in the air are helping the mercury shoot up. It could touch 45 degrees by the weekend,” said a scientist with the regional weather forecasting centre in New Delhi.

The heat wave conditions are likely to persist in northwest and central India till Sunday, according to an IMD forecast.

Typically, the met department declares a heat wave when the day temperature shoots up by at least 5 degrees above the climatic normal.

According to IMD,the temperature then tends to breach 40 degrees Centigrade in the plains and 30 degrees C in the hills.

However, if temperatures breach the 45 degrees C mark in the plains it also qualifies as a heat wave.

Research shows that the average length of heatwaves in India increased by 0.8 days on average between 2000-16 compared to 1986- 2008. In 2015 the largest number of fatalities from extreme weather were heat-related (2081).

Heat-related deaths do not necessarily reflect average temperatures but rather exposure to extreme heat. The greatest at risk from heat-related effects like dehydration, heat and sun strokes are workers, homeless people and the elderly. Exposure to the heat is linked to a rise in cardiovascular and respiratory problems.

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