You probably aren't too concerned with the snow-covered terrain you're flying over. But what happens when there are overcast skies? It can create a hazardous meteorological condition called "flat light", and you should be ready for it when you're flying this winter.
Fog is hanging just a few hundred feet above the ground as you begin your ILS. It's perfectly clear above. Here's what to expect as you descend into the clouds just a few hundred feet above minimums.