Updated: 22-04-2024
Source: China Meteorological News Press
Since April 19, 2024, continuous heavy rainfall and severe convective weather have been observed in the southern parts of South of the Yangtze River Region and South China, characterized by large accumulated rainfall, high degree of overlap in heavy rainfall areas, extreme rainfall intensity, and distinct severe convective features.
Eastern Guangxi, and central and northern Guangdong have experienced heavy rain for 2 to 3 consecutive days, with the maximum hourly rainfall exceeding 50 mm/h, and locally reaching 140.8 mm/h in Beihai, Guangxi. In some of these regions, thunderstorms with gales of 8 to 10 scale and locally 11 grade occurred,along with locally moderate-intensity tornadoes (equivalent to maximum instantaneous wind speeds reaching up to scale 15) were reported. The total rainfall during this weather process reached 200 to 280 mm, locally exceeding 300 mm (Figure 1). A total of 17 national meteorological observing stations in Guangdong and Guangxi witnessed historical maximum daily rainfall records shattered for April so far.
Figure 1. Observed accumulated precipitation from 08:00 on April 19 to 07:00 on April 22, 2024 (unit: mm) Source: the National Meteorological Centre (NMC)
It is predicted that the rainfall will gradually weaken from the April 23 to 24, but there will still be heavy rain in southeastern Guangdong and some other areas in the next a few days.
Contributed by World Meteorological Centre Beijing (WMC-BJ)
Editor: LIU Shuqiao