There are different regions in Elden Ring and every region has its own kind of nature. At the end stages of the game, you’ll reach the Consecrated Snowfield region. As you reach it, you’ll come to know that there is very low visibility and due to snowstorms and fog, you can’t see properly. On the other hand, you don’t have the map fragment of this area as well so, you don’t have an idea where to go in this region.
So, if you have a question in mind that you can remove the fog and get visibility in this area then the answer to your question is, NO. You can’t remove the snowstorms and fog in this area, you have to play through this area as it is. But there is an easy way to get to the map fragment area and when you reach it, you’ll see more visibility in the area.
To get to the map fragment, you can ride north from the “Consecrated Snowfield” Site of Grace. When you reach the rocks turn left and after a few steps then go down and turn right you’ll find another site of grace named ”Inner Consecrated Snowfield”. Rest at this site and keep riding north and you’ll get to the map fragmentation point.
Collect the map fragmentation to fully see the area and from this part of the area, visibility will be clearer than at the start of this area.
But there is no way to remove the fog from the Consecrated Snowfield.