What are you going to do wrap them in a blanket? How is hauling a couple extra round bales out before the storm and staying home the one day it snows being pussified? If you're snowed in for a week then maybe I can see getting out at all costs to haul hay. Hauling hay out today just means you were either foolish for not doing it yesterday or are foolish for trying to do it today.
Exactly, except I wouldn't go more than a day or two before I would use the tractor to get them fed at all costs. Pretty much all you can do is count your calves the day before and then get out after and count them again. It's about all you can do other than have a barn built to protect them from blizzards which doesn't make much sense in OK.