Expect heavy fog in the morning, burning off in the afternoon. (nps.gov)
If controlling a very powerful racing car in the wet wasn't enough of a challenge we've also introduced heavy fog in to the equation for that extra degree of difficulty. (teamvvv.com)
«I think, when I force myself back into that Stone Age realm, I actually do better work because I'm less distracted by the buzz of today's heavy fog of impatience. (vanityfair.com)