Why is there Qinhuangdao in the central weather forecast? Why is this? Who can tell me?

The weather forecast only reports the weather in municipalities and provincial capitals. Qinhuangdao is not the capital of Hebei province, nor is it a municipality directly under the central government, so it is not reported. However, Qinhuangdao is one of the first coastal open cities in China. At the end of the weather forecast, there is a weather forecast for Qinhuangdao in "Weather Forecast for Other Cities".