The following meteorological symbols indicating northwest wind level 6 are () A, B, C, D,

Analysis: the symbol of wind is composed of wind column and wind tail, which represents wind level, horizontal bar represents wind level 2, wind column represents wind direction, and the direction pointed by the end with wind tail is wind direction. Reading the map, we can see that A stands for North Wind Level 6, B stands for Southeast Wind Level 6, C stands for Northeast Wind Level 6, and D stands for Northwest Wind Level 6. Therefore, choose: D. Comments: This question examines the weather symbols of the wind and is skillfully mastered when solving problems.