Nation Meteorological Center,Beijing
In this study, the overview and main characteristic of Typhoon Doksuri are summarized, and the difficulties in its forecast are also analyzed. The main conclusions are as follows. (1) Typhoon Doksuri is characterized by the strong landfall intensity, which is the strongest typhoon that make a landfall in China till October 2023. And it sustains long term after landing and causes multiple stations observed precipitation and wind break the historical records, North China and Huanghuai experience the historical extreme heavy rainfall. (2) After the genesis of Doksuri, as the circulations which affected subtropical high are complicated, prediction errors of the location and intensity for the new born tropical disturbance at the east of Doksuri lead to deviations, which is responsible for the forecast bias. (3) The formation of double eye wall increases the difficulty of predicting the landing strength of Doksuri. The favorable circulations and the application of multiple observations are favorable for the typhoon intensity predictions. (4) The sustainable water vapor transport from monsoon and Typhoon Khanun, the effects of terrain and weak vertical wind shear along the typhoon track, the low-pressure circulation maintains a long time after Doksuri made landfall.