A new round of cold air has started, gradually moving eastward and southward from the northwest region. The most obvious impact will be to bring strong winds, sand and dust to the north, and rain and snow to the Northeast and other places.

In addition to strong winds and sand dust, this cold air will also bring cooling, which will mainly appear in the north. At the same time, as the warm and humid air flow strengthens, the south will usher in another round of large-scale precipitation.