22nd May 2024 (12 Topics)
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Reasons Behind the Rising Heatwaves
Context
India's northwest is experiencing a surge in heatwave days this summer. The India Meteorological Department (IMD) attributes this phenomenon to a confluence of weather patterns affecting the breadbasket region.
Climate Patterns Driving the Heat
- The increase in heatwave days is largely attributed to a combination of factors.
- One significant contributor is the weakening El Niño effect, a climate pattern characterized by warmer-than-average sea surface temperatures in the central and eastern Pacific Ocean.
- El Niño typically leads to hot and dry weather in Asia, including India, while causing heavier rains in parts of the Americas.
- Warm, westerly winds blowing in from Pakistan also contributed to the heat. The westerlies -- or westerly winds -- play an important role in weather and climate locally and on a global scale by influencing precipitation patterns, impacting ocean circulation and steering tropical cyclones.
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