response 95 of 120:

Nov 29 18:29 UTC 2003

The idea of fog lights is to set the light low so there is not direct
return glare, and to use yellow lights as that is supposedly not reflected
as greatly. I have read that these effects are illusionary. However I
have found that trying to use high-beams in a snow storm is much worse
than using low-beams, so there are better and worse ways to use illumination.
(On some occasions I have opened the driver side door slightly so that
I can follow the centerline of the road, which was not visible in the
snow squall ahead.)