迎战寒潮：一线坚守筑牢民生温暖防线

Group 1 - The China Meteorological Administration upgraded the emergency response for major meteorological disasters (cold wave) from level four to level three, which includes cold wave, frost, and snowstorm warnings [2] - The Central Meteorological Observatory issued a yellow warning for cold waves, a yellow warning for frost, and a blue warning for snowstorms as of January 18 at 18:00 [2] - In response to the cold wave, various regions across the country quickly activated emergency response mechanisms, with departments mobilizing to ensure public welfare and strengthen warmth defenses [2]