The southeast and northwest winds refer to the atmosphere.

The southeast and northwest winds refer to the wind direction of the atmosphere.

In weather forecast, the southeast wind usually refers to the wind blowing from the southeast, while the northwest wind refers to the wind blowing from the northwest. East wind and west wind refer to the winds blowing from the east and west, while south wind and north wind refer to the winds blowing from the south and north.

The wind direction of the atmosphere is influenced by factors such as pressure gradient force and Coriolis force. The pressure gradient force is the reason to promote the air flow in the atmosphere, while the Coriolis force is the influence of the earth's rotation on the air flow direction.

In weather forecast, wind direction is one of the important factors to predict the weather. Wind in different directions can bring different weather changes. For example, the southeast wind can bring wet airflow, and the northwest wind is easy to bring dry airflow. Therefore, understanding the winds in different directions can help us better understand the weather changes.