I'm the OP of the Jan 25th storm thread.
This storm was a very rare event, that personally I've never seen in my life, in which we got practically as much sleet as snow, and a bit of freezing rain, all this under glacial temp conditions. It's unusual to get sleet and freezing rain in very cold conditions: there was a warm layer in the air that made snowflakes melt but then refreeze before hitting the ground. It's even more unusual to have hours upon hours of such conditions! And finally, it's rare for our area to get significant precipitation along with arctic air. Usually we get snowstorms close to the freezing mark, or dry arctic air - not both.
So while the general population might have thought we were just getting a foot of snow... we actually got a much rarer event.
Sleetzilla.
BTW, inches of glacial sleet are much harder to shovel than snow. Don't even bother apart from trying to clear your car and a path to the street. You're going to get a heart attack.
Also, we might get a little something next week