Read the weather situation chart of my country on March 20 of a certain year and answer the following questions. (1) At this time, the wind direction in Shandong Peninsula is ______, and the wind force is ______ level. (

(1) It can be seen from the picture that the direction perpendicular to the wind tail points to the northwest, which means that the wind blows from the northwest, so the wind direction is northwest wind; a wind tail represents level 2, in the picture ***There are three wind tails, representing wind strength level 6. (2) It can be seen from the figure that the weather conditions in most areas south of the Yangtze River in my country are heavy rain (one rain line represents light rain, two represents moderate rain, and three represents heavy rain). (3) From the weather symbol "" in the picture, it can be judged that the special weather in northern my country is a sandstorm. In recent years, sandstorms have occurred frequently in northern my country, due to both natural and man-made causes. They are mainly affected by man-made causes, including deforestation and overgrazing. According to the meaning of the question.

So the answer is: (1) northwest wind; 6; (2) heavy rain; (3) sandstorm; deforestation, grassland reclamation, overgrazing, etc.