South Korea: High temperatures forecast across most of the country through at least Aug. 1

High temperatures are forecast across most of South Korea through at least Aug. 1. As of July 22, the Korea Meteorological Administration has issued heatwave warnings across parts of southeastern North Gyeongsang, central and western South Gyeongsang, southern North Jeolla, central and northeastern South Jeolla, and eastern Jeju provinces. Heat advisories are in place across the rest of northeastern, central, and southern South Korea. Temperatures up to 33 C (91 F) are forecast across the affected area, with around 35 C (95 F) across eastern Jeju Island. The high temperatures are forecast to persist through at least Aug. 1.

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.

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.