Abstract: The weather station of Naomaohu is located in the valley between the eastern Tianshan Mountains and Aertai Mountains in Xinjiang.This place is well acknowledged as the northwestern cold air pass,where was recorded more strong winds and sandstorms.Analysis on the relation of sandstorm in Naomaohu area and in the north of China during spring of 2000 showed that there was close relationship between climate in Naomaohu area and climate in the middle of northwestern China and the middle and west of Inner Mongolia;further,climate in Naomaohu area had obvious foreboding.So,the strong winds,sandstorm,daily maximum wind speed and the temporal variety of wind direction and velocity at Naomaohu station were the main reference indexes that forecast the sandstorm occurred in the middle of northwestern China and the middle and west of Inner Mongolia.

Key words: sandstorm, the Naomaohu weather station, wind direction and velocity, prediction indexes