Fog on the Pond

Since I am not a scientist about fog, I am guessing the extreme change in temps from the last couple of weeks, and perhaps higher than normal water temps in the ponds, caused this fog today (about noon) since we went from recent regular 70'sF to overnight low in the low 30'sF, and a trace of snow as you can see in the island plantings in the front yard today.  The snow was gone in 1 hour, but I guess and hope that's our total snow for this year.