In your guy's opinions, what kind of moments make a film dramatic? Specifically in an extreme weather type situation?
I'm assuming you want only ice/snow stuff right? Anyway, here's some.
It's a bit cliche, but he could be crossing some ice, (slipping around a bit of course, and breathing heavily in the middle of all the falling snow.) it starts to crack, (sounds only first) then the ice breaks away right in front of his feet. He steps back, pauses for a second, then turns to go around it. It's not that dramatic, but I dunno, I guess it could be if filmed right. It's more just a small slow scene that you could add.
Another scene could be his walking across a flat-ish plain when suddenly the ground beneath him falls away and he rolls down a small tunnel. He then comes out only to continue rolling down a steep-ish hill. He finally stops, gets up, and continues on.
He could be in an unusually think snowfall with it and the strong wind swirling around him. He struggles on, stops, turns around, and looks at the ground where some small piece of him gear is lying from the last time he passed by. Then, by having the camera spin quickly around him, him looking back and forth, and other cinematic tricks, give the illusion that he is very disoriented and confused. He then begins to walk forward, but stumbles, switches directions, and the goes on. He walks on for a bit, but misses the other piece of gear lying on the ground signifying that he has been that way before as well.
He could be walking in the snow, and then hear faint whispers from his family/friends/whatever, he looks up, sees a very faint and distant, but humanoid form, runs forward, and finds nothing. He then continues to hallucinate different scenes, and each time his efforts are in vain to find what ever he sees/hears.