IMD defines heatwaves as temperatures ≥5°C above normal for two consecutive days, with a core zone spanning Northwest/Central India to Bihar/Jharkhand and a coastal zone in Andhra Pradesh-Odisha. The 16th Finance Commission has recommended classifying heatwaves as a 'notified disaster' under the Disaster Management Act to unlock State Disaster Response Funds for relief.
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- ›IMD Heatwave Threshold: ≥5°C above normal for ≥2 consecutive days
- ›Severe Heatwave Threshold: ≥7°C above normal
- ›Target this Data: IMD heatwave threshold is ≥5°C above normal for ≥2 consecutive days.
- ›Target this Nodal Body: India Meteorological Department (IMD) defines and monitors heatwaves.
- ›Target this Legal Point: 16th Finance Commission recommended including heatwaves as a 'notified disaster' under the Disaster Management Act, 2005.
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