A blizzard followed by blowing fog caused us to pull over at the very first possible place which ended up being a crowded truck stop. Woke this morning to blinding sunshine above blowing fog with visability of about 10 feet. Stayed put as more and more and more and more trucks pulled in. The highway was closed in six different places. There is a truck pile up; between 3 and 15 trucks, depending who you ask.