Taking a shower in the scene of yesterday's PAD when my wife shouted that there was a blizzard outside - and I wasn't even expecting snow. Took this out the kitchen window (after toweling off & getting dressed). The house in the distance is about 500 yards (quarter mile plus) up a golf course fairway.
I took six shots, each with a different shutter speed, in order to examine the effect on capturing the flakes. I even used my Variable Neutral Density filter to get one at about 4 seconds - in addition to one at the other end of the scale by opening the aperture wide open and cranking the ISO to 800. The answer I was looking for is that faster shutter speeds are better for capturing the appearance of falling snow. It all disappears at long speeds - which is no surprise. I was hoping to find a speed that made the falling snow appears as white streaks. It's in there somewhere - just not at a speed that I tried.
I used the Variable ND filter for long exposure times instead of stopping down the aperture because I wanted to keep the lens pretty wide open while focusing on the large trees. This was because there was a branch from a small tree in my yard that I wanted to keep out of focus so that it would interfere with the shot.