Preliminary min temperature plot for Sunday morning (via Mesowest – a must-have website for the hard core weather hobbyists) shows we ended up rather uniformly in the middle 20s. Here’s a map of the min temps:
Turns out, some folks got sleet and graupel yesterday (it was not hail, btw). Both form when there’s a warm layer aloft over top a cold layer that melts the snow, and then it refreezes before hitting the ground. If it totally melts (into a raindrop) and refreezes, you get sleet. If it partially melts and then refreezes, you get graupel.. which we got quite a bit of yesterday during the day. Here’s a picture of the graupel out this way yesterday:
Ultimately, we ended up with a period of heavy snow last night ~8:00-8:30, enough to coat the ground…
Folks up in PA actually got a snow storm out of this, while we ended up in the novelty department.
Anyway, I think that should do it for the winter. Honestly, I sure hope so.