“桦加沙”成今年以来全球风王，登陆时广东沿岸风暴增水将剧增

Core Viewpoint - The super typhoon "Haikui" is the strongest typhoon affecting China this year, with significant impacts expected on coastal areas, particularly in Guangdong and Fujian provinces [1][2]. Group 1: Typhoon Characteristics - Typhoon "Haikui" has reached a strength of 17 on the scale, making it the "global wind king" of the year [1]. - The typhoon is expected to move at a speed of approximately 20 kilometers per hour and will weaken slightly after crossing the Bashi Channel [2]. Group 2: Storm Surge and Tidal Effects - There is a high likelihood of seawater backflow in the Pearl River Estuary and nearby coastal areas due to the combination of storm surge and astronomical tides [2][3]. - The storm surge is expected to exceed 300 centimeters in the Pearl River Estuary, coinciding with high astronomical tides on September 23 and 24 [2][3]. Group 3: Wave Conditions - The coastal waters of Guangdong and Fujian are forecasted to experience large to giant waves, with wave heights reaching up to 13 meters near the typhoon's center [4][5]. - The National Marine Forecast Center has issued warnings for wave heights of 8 to 13 meters in the Bashi Channel and northeastern South China Sea [5]. Group 4: Emergency Preparedness - Various cities in Guangdong have announced measures such as school closures and halting public transport in anticipation of the typhoon's impact [6]. - The National Flood Control and Drought Relief Headquarters has initiated a Level 4 emergency response for flood and typhoon prevention in Guangdong, Hainan, and Fujian [6].