I would doubt that that herd wil be where you left them on Saturday unless they are on a huge patch of private land that no other hunters have access to. Either the weather or hunters have probably bumped them out to nether regions.

Two hundred in one herd! Gad, where are you? Either on the edge of Jackson Hole or some private canned hunt situation. A dozen was a big herd to see in hunting season when I was in the game (about thirty years). Anyway, wait till the storm breaks. Then get up there. Unless it dumps a huge amount of snow, they probably won't move from the area. This would especially be true if they're in a place where they're not being bothered (both situations above). You'll have fresh snow for tracking and with that many elk you're a cinch to get up close and personal with a lot of them. Elk are so sociable they'll almost always wait and see what you are when they're in bunches. Sometimes even if the wind is wrong. False sense of security. However, do not come down on them from above. They'll duff if they hear you even if wind is in your favor. My guess is this is because cats generally can't get them in mountainous terrain unless they come down from above.

elk moose and deer usually move before during or after a rain or snow

Go for it they might be moving around before the storm hits trying to find food.