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Shenzhen formulated a service model called“31631” to respond to high impact weather

Source:China Meteorological News Centre20-08-2021

Recently, Shenzhen Municipal Meteorological Service (hereafter referred to as the Service) has formulated “31631” service model, which can be called the “metronome” for urban governance against large-scale weather systems.

From June 6 to 8 in 2020, Shenzhen was subjected to the strongest monsoon rainfall in the past decade, with the maximum accumulated rainfall of 665.3 mm within three days. As the rain mainly occurred in the early morning, this was undoubtedly a challenge for the local meteorological department to respond.

“3”: On June 3, the Service forecasted the wind and rain process 3 days in advance.

“1”: At 11:20 a.m. on June 5, Shenzhen Municipal Meteorological Service issued another major meteorological information bulletin 1 day in advance. The Emergency Management Bureau of Shenzhen Municipality organized a video conference, and required relevant departments to play their due role. On the same day, the authorities designated rescue and relief personnel and supplies to major affected areas.

“6”: At 9:00 p.m. on June 5, the Service released disaster early warning information, entering the state of refined disaster weather early warning 6 hours in advance.

“3”: In the early morning of June 6, as the yellow and orange warning signals were released successively, all sectors began to respond in an orderly manner. The Service disseminated early warning and risk warning of sub-regions 3 hours ahead of time, and updated information like cumulative rainfall, the maximum rainfall intensity, the maximum wind speed etc..

“1”: On June 7, The Service released a rainstorm red warning signal at 5:20 a.m., and reported meteorological information to the headquarters of Emergency Management Bureau of Shenzhen Municipality at one-hour interval. It also issued quantitative forecasting with prediction scale down to the street one hour in advance.

This model has realized the deep integration of urban governance and weather forecasting & warning. It is suitable for large-scale weather systems. Right now, there is still difficulty to apply the model in responding to small-scale weather systems like short range sudden severe convection weather.(Aug.20)

Reporter: Li Yipeng

Editor: Wu Hui, Wang Wan, Liu Shuqiao