China: Adverse weather forecast in eastern and southeastern provinces through at least March 25

Event

Heavy rainfall is forecast across parts of eastern and southeastern China through at least March 25. As of March 24, the China Meteorological Administration has issued a blue (the lowest level on a four-tier scale) rainstorm warning for parts of eastern and southern Hubei, northeastern Hunan, central and northern Jiangxi, central and southern Anhui, most of Zhejiang, northwestern Fujian, central Guangdong, northern and western Jiangsu, and eastern Shandong provinces. The heaviest rainfall is expected in parts of northern Jiangxi, southeastern Hubei, southern Anhui, and western Zhejiang, where 10-12 cm (4-5 inches) of rain could fall. The heavy rainfall may be accompanied in places by strong winds, thunderstorms, hail, and other convective weather. Regional and local meteorological observatories have issued several weather warnings ranging from blue to orange severity (the lowest to the second-highest on a four-tier scale) for heavy rainfall, lightning, thunderstorms, hail, fog, and strong winds across the affected area. Officials could update and possibly extend the coverage of weather alerts over the coming days.

Hazardous Conditions
Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are also possible, especially where heavy rainfall has saturated the soil. Landslides could result in structures being damaged or destroyed. Disruptions to electricity and telecommunications services are possible where significant flooding or landslides impact utility networks.

Transport
Floodwaters and debris flows may render some bridges, rail networks, or other roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters. Freight and passenger train delays and cancellations are possible in areas that see heavy rainfall and potential track inundation. Airport authorities may also delay or cancel flights due to adverse weather conditions.

Localized business disruptions may occur in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites.

Advice

Monitor local media for weather updates and related advisories. Confirm all transport reservations and business appointments before travel. Make allowances for localized travel delays, as well as potential supply chain disruptions, where flooding has been forecast. Do not drive on flooded roads. Charge battery-powered devices in case prolonged electricity outages occur.

Resources

China Meteorological Administration
China Ministry of Water Resources