ORIGINAL: thedoctorking
If you push hard enough in blizzard, especially with the +1 attack advantage, you may either be able to pocket German infantry or force the Germans to commit panzer units to prevent it. Then, the panzers suffer heightened attrition just by being out of their winter quarters in cities and/or get shot up as you attack them with better CV units. This is especially true if you can force panzer units to retreat through your ZoC's or (best case) be surrounded entirely and force them to rout out through your units. With good management, you can end up with the historical outcome, which is a panzer force composed of divisions with a few dozen tanks each.
You are correct on having the Germans commit the Panzer's to defend during the Blizzard. Once that happens use the Soviet Armor brigades and do soak off attacks against the PZ divisions until the sun comes up in April. I do this in my games and has worked every time.