 To help you get a feel for determining wind direction on polar stereographic maps, I'm going to use this interactive tool that shows a station model and allows you to change its location as well as wind direction. First, let's get our bearings. This is a polar stereographic projection focused on the North Pole. Here's North America. Over here is Asia. Here's Europe. And Africa is toward the bottom. Right now I have my station model located over Europe, and it's set up for a 270-degree wind. That's a westerly wind. See how the wind flag parallels the local attitude circle at the station model? If we keep our wind direction the same, but move our station model over North America, now it looks completely different, but we know the wind is still westerly because it's paralleling the local attitude circle, the station model. Let's move it over Asia. Again, it looks completely different, but it's still showing a westerly wind because it still parallels the local attitude circle. Now let's change the wind direction to 180 degrees. The wind is blowing from south to north, and we know that because the station model is paralleling the local longitude line blowing from south toward the North Pole. But if we move the station model over Greenland, like this, the southerly wind looks just like this. Again, the key is realizing that it parallels the local longitude line. Now let's move our station model over Europe and change our wind direction to 320 degrees. That's a northwesterly wind, so it won't parallel either a latitude circle or a longitude line. But this is clearly blowing from the northwest because it is coming from north of the local latitude circle and from the west of the nearest longitude line. If we move the station model to the middle of North America, it now looks completely different, but the wind is still from the northwest, and we can tell that if we look at how the wind flag is oriented compared to the nearest latitude circle, which runs east-west, and longitude line, which runs north-south. That's always the key when interpreting wind direction on a polar stereographic map.