停课、停托！广州11区升级至台风黄色预警，有这些防御要点

Group 1 - The city of Guangzhou has upgraded to a yellow typhoon warning across all 11 districts as of July 19, prompting the activation of a level three emergency response for wind protection [1][2] - Citizens are advised to closely monitor typhoon warning information and weather changes, minimize outdoor activities, and avoid risky areas during heavy rain and strong winds [1][2] - Schools in affected areas are required to suspend classes when the yellow warning is issued, and parents should guide children to stay home or seek safe locations if they are on their way to school [1][2][3] Group 2 - Outdoor workers, including those on construction sites, are instructed to stop work and seek safety, avoiding areas with potential hazards such as large trees and high-voltage power lines [3] - Individuals in dangerous zones or unsafe buildings should evacuate promptly to ensure their safety [2][3]