Is it possible to put your trip off for a couple of days? Half the country is frozen and closed, it is still snowing and you have 500 miles in snow and wind. If you do go, take some sand bags with you, plenty of extra food, water, artificial heat source, extra coats gloves , radio, flashlight, chain come along, matches, tools, blankets......you get me? try to prepare yourself for the worst and hope for the best. Or just wait till you are sure that all roads are passible. Please be careful