Light Pillars... That's Kinda Cool

So, I was driving back into Waterloo on Sunday night around 9:15, and as I was exiting Highway 7/8 at Trussler, I noticed that there was some sort of spotlight pointing up into the air, not unlike the ones that the casinos use, except this one wasn't moving back and forth. I thought it to be kind of odd because there isn't much interesting in this end of town. Anyway, I drive closer to the source and realize that this "spotlight" is actually just an ordinary floodlight at a used car lot (at Highland & Glasgow). How very strange, I thought, it doesn't seem to be a spotlight at all. But the light certainly was shooting straight up into the air, quite brightly too, I might add. Anyway, I didn't think anything more of this and probably wouldn't have remembered it if I didn't happen to come across the UW Weather Station page, where in the side margin, there was a blurb about what had happened. It says, For anybody who was outside on Feb 18 between about 8 and 10 pm you might have seen a neat atmospheric phenomena called a light pillar. This is when ice crystals make it appear that any light source on the ground extends into the sky." The page give a link to this site which explains light pillars. Pretty cool.