Dave you are right, it is steam. I was just trying to think of a way to explaining it to Kym but as it turns out I was wrong (get that - a woman admitting she was wrong!)
Fog is formed near the ground. Pretty sure clouds only form in the sky.
Dave I think the mist in the mountains could be either fog or cloud depending on the way it is formed, or perhaps where it is formed.
Fog forms when a layer of warm, wet air forms close to the ground and another layer of cooler, drier air forms on top of the warmer layer. When the ground begins to cool down, the water droplets in the warm, wet air begin to condense to form fog. This type of fog is called radiation fog.
Types of Fog:
1.
Radiation Fog2.
Advection Fog
3. Upslope Fog
4. Steam Fog
Formation of Radiation Fog - Radiational Cooling
• need:
o shallow, moist air near surface
o clear/calm nights
o although light winds will bring more air in contact with ground
• Radiational cooling allows the temperature to drop to the dew point.
http://apollo.lsc.vsc.edu/classes/met13 ... intro.html