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25 Apr 2024 | 03:41 AM UTC

India: Heatwave conditions are forecast to persist over southern regions through at least April 29

Heatwave conditions forecast to persist over southern India through April 29. Transport and power disruptions possible.

Informational

Heatwave conditions are forecast to persist across much of southern India through at least April 29. Temperatures of around 42-44 C (108-111 F) are forecast. As of April 25, the India Meteorological Department (IMD) has issued the following warnings:

  • Orange (the middle level on a three-tier scale) heatwave warnings: Western Andhra Pradesh and Karnataka states April 25 and Andhra Pradesh and Karnataka states April 26-29.

  • Yellow heatwave warnings: Most of the rest of the affected area through at least April 29.

Authorities will likely amend advisories as weather conditions change over the coming days.

The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout the region. Heatwaves pose a threat to vulnerable groups - such as the elderly, children, pregnant women, and those with respiratory illnesses - due to the increased possibility of heat stroke or heat exhaustion. Relatively healthy individuals, especially those working outdoors or using mass transit, may also face health risks during significant heatwaves. The lack of air conditioning and cramped vehicles, particularly during rush hour, may lead to dehydration and other health issues in some passengers.

Very high temperatures may warp rail tracks and force passenger and freight trains to operate at reduced speeds. Road surface damage is also possible, and overheated vehicles may worsen traffic problems in urban areas where congestion is already a problem. Commercial trucking disruptions might occur as very high temperatures put more stress on vehicles, making tire blowouts more common. Major flight disruptions are unlikely at regional airports, but general aviation disruptions are possible, and some airfreight carriers could reduce cargo loads. High temperatures could lead to an increased demand for electricity, which might trigger localized brownouts or blackouts, exacerbating hazardous conditions when air conditioning is no longer possible.

Monitor local media for weather updates and related advisories. During heatwaves, remain indoors in air conditioning when possible. If outdoor activities are necessary, frequently rest in shaded areas; avoid activity during the hottest times of the day. Stay well hydrated by drinking plenty of fluids. Avoid alcoholic beverages which are dehydrating; drink bottled water or water that has been boiled. Wear loose-fitting, light-colored clothing. Cotton fabrics are more cooling than synthetics. Promptly seek medical attention if signs of heat exhaustion or heat stroke develop. Charge battery-powered devices in case prolonged electricity outages occur. Reconfirm ground and rail transport services.