I'm about to head out to see American Idiot, so I checked the weather via my Ubuntu Linux desktop. Here's what I saw:
Freezing fog? What the hell is freezing fog?
According to the National Weather Service:
Freezing fog occurs when the water droplets that the fog is composed of are "supercooled". Supercooled water droplets remain in the liquid state until they come into contact with a surface upon which they can freeze. As a result, any object the freezing fog comes into contact with will become coated with ice. The same thing happens with freezing rain or drizzle.
That's some scary shit right there!