According to the website of the National Meteorological Center, the National Meteorological Center continued to issue a yellow alert for heavy fog at 6:00 on April 11: It is expected that from daytime to nighttime on the 11th, there will be heavy fog with visibility of less than 1 kilometer in the coastal waters of eastern Shandong Peninsula, the northeastern waters of the Yellow Sea, the waters near Hangzhou Bay, and the coastal waters of northern Zhejiang. In addition, from early morning to morning on the 11th, some areas of central Beijing, southeastern Hebei, southern Henan, central Hubei, and central Guizhou will have heavy fog, among which some areas of southern Henan and central Hubei will have strong dense fog with visibility below 200 meters, and locally there will be extremely strong dense fog with visibility below 50 meters.

Image source: National Meteorological Center website.

　　Defense guidelines:

　　1. Due to low visibility on land, drivers should control their speed to ensure safety.

　　2. Airports, expressways, and ferry terminals should take measures to ensure traffic safety.

　　3. Vessels navigating and operating should strengthen lookout, control speed, maintain a safe navigation distance, drive cautiously, and ensure navigation safety.