Abstract:The comparative analysis is made of the high wind processes and formation causes of the super typhoons Krosa and Wipha landing around the boundary area of Fujian and Zhejiang provinces in 2007 by using the conventional radiosonde data, surface observation data, automatic station data, FY2C satellite image data, and the Doppler radar data. Results show that the distribution of the surface pressure field has important impact on the high winds before and after the typhoon landing, the influencing scope, and the duration of typhoon; the infrared cloud pictures from FY2C have an indicative role for determining the impact of high winds, and the time that the peripheral spiral clouds of the typhoons entered the East Sea on the FY2C infrared cloud pictures can be used as an indicator in forecasting the occurrence of high winds. The velocity products of Doppler radar can also be used as an important reference for forecasting extreme wind speeds in typhoons.