The misconception is that they cut through fog, period. They're to help light up the road and lines more directly in front of you for lower speed, low visibility situations, e.g. fog, heavy rain, blizzard. Yellow (in my experience) is particularly extremely helpful in snowy conditions.
Current- 2016 Race Red Focus ST1
Traded In - Sedan Revolution #249 - 2012 SE Sport - ╠╬╝ - Ingot Silver - 201A - K&N w/ snorkel delete - Blox Type R Knob