For the Valentines Day 2007 storm I lived in Central PA. That's exactly what it was-probably 8" of snow in 3" of sleet. 4" of snow then the sleet and 4" at the end that added up to 10-12" of absolute cement. Temps were in the teens to around 20 the whole storm. That seriously was the heaviest, densest concrete I remember falling out of the sky. It froze solid and lasted for weeks. In other parts of the state it was so disruptive that major roads/interstates shut down because it's so hard to move. I think in that storm much of this subforum had a big ice event. Much of upstate NY/NNE had 24"+ which I would've much rather experienced, but all the dense sleet made what I had probably just as disruptive. The St Patricks Day 2007 storm I was home on Long Island and remember the insane amount of sleet from that one. So that month long period I saw more sleet than any other time in my life.