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15 Jun 2023 | 02:33 PM UTC

Mexico: High temperatures forecast to persist across much of the country through at least June 19

Heatwave to persist across much of Mexico through at least June 19. Transport and utility disruptions possible.

Informational

Event

A heatwave is likely to persist across much of Mexico through at least June 19. Temperatures above 45 C (113 F) are forecast in parts of Sonora, Sinaloa, Coahuila, Nuevo Leon, Tamaulipas, San Luis Potosi, Veracruz, Tabasco, and Campeche states June 15 and will continue across many parts of eastern, northern, northwestern, southeastern, and western Mexico over the coming days. Temperatures above 40 C (104 F) are expected in 24 out of Mexico's 32 states through June 18. As of June 14, health officials have reported at least six heat-related fatalities across the country. More than 400 other cases of heat stroke and other heat-related illnesses have been reported nationwide, and hundreds of heads of livestock have died in the heat. Intermittent power outages have been reported in parts of Campeche, Coahuila, Nuevo Leon, Queretaro, Tabasco, Tamaulipas, Veracruz, and Yucatan states in recent days as energy infrastructure is struggling to cope with the increased electricity demands caused by the persistent hot weather.

Hazardous Conditions
The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout the region. Heatwaves also threaten 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 during prolonged exposure to high temperatures. These health risks could also extend to relatively healthy individuals during significant heatwave events. In addition to significantly impacting athletes and those who work outdoors, high temperatures can cause problems for people using mass transit. The lack of air conditioning and cramped vehicles during rush hour may lead to some passengers' hospitalization.

Transport and Utilities
Very high temperatures may damage road surfaces, 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.

Advice

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 or boiled water. 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 the case of prolonged electricity outages.

Resources

Mexico National Meteorological Service (SMN)