Humidity How does fog form? Prentice Hall - Science Explorer. Asked by BookRagsHelper 13 years ago 12/31/2012 3:24 AM Last updated by anonymous 13 years ago 12/31/2012 11:32 PM
Warm air meets with cold air and and is pushed across the cooler surface where it concenses into a cloud (fog). Fog will tend to form wherever there is a temp difference between the ground and the air.
