We had a dense fog advisory this morning, and it's easy to see why from these pictures.
I took some of these from right outside our studios. You can see the tops of our skyscrapers are covered in the fog or low stratus.
A couple of the other shots are from our PNC Plaza Camera from up top, and what it looked like up there. And, another picture from the McCauley-Nicolas camera from Clarksville, IN looking over the 2nd street bridge.
We had clear skies last night which allowed us to cool down to the dew point, plus no wind to mix the air. Thus, fog.