Sounds like a "white balance" problem. Your camera has no firm idea of
what color anything you're shooting actually is and makes assumptions
based on what it thinks the light source is. Light through clouds is a
different color from sunlight, which is different again from
incandescent, which is different again from fluorescent.

Sounds like whatever mode you had your camera in didn't work for the
light you had. Many cameras have a "cloudy" light balance setting in
addition to "automatic" and "daylight"; maybe that would work better.

Of course, since you know that snow is white even if your camera
doesn't, you could use that to "teach" your camera what setting to use
if it has that feature.

I have a coolpix L14 which is probably not all that different. Instead
of the scene setting for snow use the auto setting and then go into the
menu and check the white balance setting. It's probably on "auto." Try
either "daylight" or "cloudy" and see what you get.

Thanks folks.

I found the part about white balance in the camera manual. I guess, if all
else fails, READ THE FINE MANUAL. Mea culpa!