I believe Peiper’s advance petered out due to fuel shortage as well as determined resistance from our troops. Same story for Rommel at El Alamain. Hitler bit off more than he could chew.
When the weather broke, the Germans were toast.
yes, it did. It also suffered from the fact that Peiper was out in front of the rest of the advance, and thus his flanks were dangerously exposed.
Fuel was certainly an issue with Peiper, as well.