It's been some time since I had an experience to relate, and this one will require a little context.
My wife and I work together in the English department at our school. Since we bought our house five years ago, we have saved money by doing without a second car and sharing one nice, affordable vehicle. Because I can become impatient when I'm driving, my wife tends to drive when we are travelling together; I'm adult enough to concede that she is the safer driver.
Driving home at the end of the school day, when we cross the border into our hometown there are two different routes we can take to get to our house. The left-hand route appears to be shorter on the map; in fact it is slower because it is congested with rush-hour traffic and four traffic lights in close proximity. The right-hand route veers away from the right direction, but loops back around quite close to our house and there is far less traffic on that road. My wife favors taking the right-hand road almost every night.
On Thursday night (December second), just about sunset, we were taking the customary right-hand route. After we cross a bridge, there is a crosswalk for pedestrians about 30 feet away. Though there were no pedestrians on the crosswalk, nor any approaching it, my wife slowed down to almost a complete stop. I looked out of the windshield to see a roughly pyramid or cone-shaped mist, about two-and-a-half to three feet in height, standing/hovering on the crosswalk about a foot away from the curb. The mist was a pale, translucent grey that lingered for 5 or 6 seconds as we watched it slowly evaporate. It did not appear to be moving in any direction, it was visible both in our headlights and the headlights of the vehicle behind us, and it did not have a shadow that I could see. The grey mist did not ascend like smoke, nor did it roll away like fog; it became more and more pale until it was invisible. Once it had disappeared, my wife accelerated away from the location at a reasonable speed.
I asked her, "did you see that, too?"
She responded, "what, the grey thing?" When I described it as I have in the above paragraph, she added, "I couldn't have given you that much detail, but yeah. What was it?"
My reaction was that it was one of two possibilities: first, some sort of optical illusion, though how it was created, how it was maintained, and what made it disappear were in no way consistent with the environment in which we saw it; or, second, that it was some sort of paranormal entity or object. She stated, "well, I'm not in any way psychic, so I think it was an illusion. I've never seen a ghost."
I pointed out that the fact that most people haven't seen one is the reason that seeing one frightens them. I did not mention to her that my "supernatural sense" was active while I was observing the object, as I did not wish to alarm her; also, it wasn't a full-blown atmospheric vibe that I normally experience, more of a dull tingle that something was "off" about the whole situation.
Has anyone else here on YGS seen something like this? The last narrative I posted about supernatural objects ("Metallic Manifestations") that I saw described items that appeared to be solid objects; witnessing a translucent, almost transparent, object is a new experience for me. The fact that my wife saw it, too, is highly unusual. I'd appreciate any feedback from the forum on this, and I'll try to respond in a timely manner to any questions you might have.