Severe heatwave alerts for several UP districts as Health Ministry issues advisory

📌 Summary:

• The India Meteorological Department (IMD) issued heatwave-to-severe-heatwave warnings across North-West and Central India, cautioning that maximum temperatures could reach 45 degrees Celsius, with dry, hot conditions persisting for about a week.

• A red alert is in place for many Uttar Pradesh districts (including Agra, Firozabad, Jhansi, Banda and Prayagraj); a severe heatwave warning covers parts of eastern Maharashtra (Vidarbha), while Punjab, Haryana, Madhya Pradesh and Rajasthan also face heatwave conditions; Delhi is under an orange alert with temperatures of 42-45 degrees Celsius.

• "Warm night" warnings have been issued for western Rajasthan and western UP; hot and humid conditions are expected in Odisha and coastal Andhra Pradesh.

• The Ministry of Health and Family Welfare, with the Ministry of Ayush, issued a comprehensive public health advisory: stay hydrated, avoid sun exposure between 12 pm and 4 pm, wear light cotton clothing, and consume water-rich seasonal fruits and electrolyte-rich fluids.

• Vulnerable groups flagged for extra care: children, the elderly, outdoor workers, infants, pregnant women, and those with chronic illnesses such as heart disease and hypertension.

• Workplace measures recommended: shaded rest areas, regular hydration breaks, acclimatisation for workers, and awareness of heat-stress symptoms; the advisory also drew on Ayush systems (Ayurveda, Siddha, Yoga, Unani and Homoeopathy).

• Cause flagged by the IMD: the El Nino-Southern Oscillation (ENSO) influences extreme temperature events in India — El Nino years bring longer, more frequent and more intense heatwaves, with Northwest, Peninsular and Central India most vulnerable.

🎯 UPSC Relevance: GS3 Disaster Management — heatwaves as a hazard, heat action plans, the role of the IMD, and the climate-health link; climatology of ENSO and El Nino.

📝 Prelims Facts:

• The IMD is India's national weather forecasting agency, functioning under the Ministry of Earth Sciences.

• ENSO (El Nino-Southern Oscillation) is linked to intensified heatwaves in India during El Nino years.

• IMD colour codes: red alert (most severe), orange alert (be prepared), and "warm night" warnings for elevated night-time temperatures.

• The health advisory was issued jointly by the Ministry of Health and Family Welfare and the Ministry of Ayush.

🔑 Key Term: "Heatwave" — a period of abnormally high temperatures; the IMD declares one when the maximum temperature crosses set thresholds (typically 40 degrees Celsius in the plains) or departs sufficiently from the normal.