Group 1 - The article reports that due to cold air, storm surges of 70 to 150 centimeters are expected in the Bohai Bay and Laizhou Bay from the night of the 10th to the afternoon of the 11th [1] - It is anticipated that wave heights of 2.5 to 3.8 meters will occur in the northern Bohai Sea and Yellow Sea [1] - The National Marine Forecasting Center has issued a blue alert for storm surges and continues to issue a blue alert for waves [1]

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].