Post by Andrew Freiden:
I briefly mentioned this on TV this morning but based on a nudge from twitter follower Rusty Tutton (@RJTutton) Let's talk a little about snow.
The big southern storm I've been talking about since Monday has been remarkably consistent on the computer models. And looks like it'll bring us a soaking rain Tuesday afternoon Through Wednesday.
As the storm departs, cold air rushes in behind it. It looks like the moisture will leave just in time for the storm to be rain and not snow. That said, a few hours of subfreezing air aloft could mean a brief changeover to snow as the rain leaves.
It doesn't look like much to worry about (only a tiny bit of moisture left over) but will be interesting to watch in the days ahead.
The graphic I've clipped below shows the forecasted vertical structure of the atmosphere Wednesday evening. This would be just cold enough to support snow 5,000 feet off the ground, which may makes its way to the surface.
*Keep in mind we are still 5 days away on this and a lot could change-- in fact, it's awfully early to dissect the models this closely anyway*