It's been crazy foggy in the mornings here all week. This reminded me of the Harry Potter books, when Fudge says that the Dementors are breeding and thats what's causing the cold misty weather.
I wanted to get the exact quote, so I googled "the Dementors are breeding" and the search turned up all kinds of hits of people musing about whether or not Dementors have sex, and if Dementors have the right parts to have sex with... and I won't say anymore as it went downhill from there.
The internet is a wonderful place, isn't it?
Anyhoo, this is what it looked like by where I live this morning.