basically it seems the forecasters are favoring the NAM model.
This is a NAM map. The blue line represents the freezing line at 10,000 feet. It shows the 10k freezing line being up near the OH/MI border. Meaning, its raining at 10k feet here in central ohio since its warmer than 32.
http://i.imgur.com/RFCnG.gif
Now, below is a temperature map for the same hour at the surface, as in the ground. It shows the freezing temp being the around i70 line. So in that space where the surface temp is less than 32, but the upper atmosphere temp is above freezing, it rains then freezes as it hits the ground.
http://i.imgur.com/XvGkL.gif
basically between i70 and i80 there should be an ice accumulation according to the NAM
Now, The GFS is a different story. It shows the 10k freezing line at 70.
http://i.imgur.com/XC3r1.gif
and the surface freeze line from dayton to WV/PA line. So according to the GFS, we would stay all snow, maybe a very brief period of sleet.
http://i.imgur.com/AC9TI.gif
The ECMWF (euro) never shows the 10k (or 850mb) temp rising north of 70;
http://i.imgur.com/pMTA9.gif
http://i.imgur.com/4chzM.gif
i had to post 2 images because it only goes in 24 hour increments.
I dont understand why their hugging the NAM, but whatever. the 6z nam is running now, so we;ll see what it says