02 Aug 2022 | 02:59 AM UTC
China: Heatwave likely to persist in southern, central, eastern, and northwestern regions through at least Aug. 10 /update 1
Heatwave likely to persist in southern, central, eastern, and northwestern China through at least Aug. 10. Utility disruptions possible.
Event
High temperatures are forecast to persist across southern, central, eastern, and northwestern China through at least Aug. 10. As of early Aug. 2, the China Meteorological Administration has issued a yellow (second lowest level on a four-tier scale) high temperature warning across Anhui, Chongqing, central and western Fujian, Guangdong, Guangxi, eastern Guizhou, eastern Hebei, southern Henan, Hubei, Hunan, southern Jiangsu, Jiangxi, southern Shaanxi, Shanghai, eastern Sichuan, Tianjin, and northern and western Zhejiang provinces; temperatures of more than 35 C (95 F) are possible. The highest temperatures of 37-39 C (99-102 F) are forecast over southern Anhui, Chongqing, most of Guangdong, eastern Hubei, Hunan, Jiangxi, and western Zhejiang provinces, while temperatures could reach above 40 C (104 F) in southwestern Chongqing Province. Officials could upgrade or expand the alerts over the coming days as conditions change.
Forecast models indicate that the high temperatures are likely to spread to the north over the coming days. High temperatures are likely in Beijing, western Gansu, Hebei, western Inner Mongolia, Shandong, Tianjin, and eastern Xinjiang provinces Aug. 3-7. Due to precipitation, temperatures are forecast to east from east to west across southern China and southern Jiangnan regions Aug. 3-6. Temperatures are likely to ease across most of the rest of the affected area from Aug. 8 due to precipitation but remain high in western Gansu, western Inner Mongolia, and southern Xinjiang provinces through at least Aug. 10.
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.
