26 Jul 2023 | 05:45 AM UTC
South Korea: Heatwave forecast nationwide through at least July 28
Heatwave forecast across South Korea through at least July 28. Health concerns likely. Localized transport and utility disruptions possible.
Event
Officials have issued weather advisories for excessive heat that will persist in South Korea through at least July 28. As of July 26, the Korea Meteorological Administration has issued heatwave warnings across west central Gangwon, southeastern North Gyeongsang, and southeastern South Gyeongsang provinces and Gwangju Metropolitan City. Heatwave advisories are in place across most of the rest of the country.
Temperatures of more than 33 C (91 F) are forecast over most of the country, with higher temperatures of more than 35 C (95 F) likely in the heatwave warning areas. Temperatures are forecast to rise further July 27. Rainfall in the northern part of the country is forecast to reduce temperatures temporarily, but temperatures will likely increase quickly once the rain eases. Officials could upgrade or expand the alerts over the coming days as conditions change. Authorities have confirmed that more than 745 people sought medical attention due to related weather conditions, and high temperatures have killed at least three people.
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 engines, 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.
