At 18:39 on January 24, 2025, the Nanyang Meteorological Observatory issued a blue warning signal for a cold wave: it is expected that the lowest temperature in Nanyang City and its towns and streets will drop by 8 ℃ to 10 ℃ in the early morning of the 27th compared to the early morning of the 25th. The lowest temperature in the early morning of the 27th will be around minus 6 ℃, and on the 26th, there will be northerly winds of 4 to 5 levels and gusts of 7 or above. Please pay attention to prevention. Defense Guidelines: 1. The government and relevant departments should prepare for the cold wave according to their responsibilities. 2. Agriculture, forestry, and animal husbandry should be prepared for frost damage to crops, trees, and livestock. 3. Relevant departments should adjust residential heating according to the situation, and coal-fired heating users should pay attention to preventing carbon monoxide poisoning. 4. Relevant units and residents should pay attention to wind prevention, close doors and windows, and reinforce outdoor structures. 5. Individuals should pay attention to adding clothes and keeping warm. Elderly and weak patients, especially those who are sensitive to temperature changes such as cardiovascular and asthma patients, should reduce their outings.