As we said in an earlier post today, don't expect any clarity from me regarding this system for late this week. While some may have it all figured out already, that's great. I don't. First off let me just say that what we are seeing is really not model "flip flopping" but rather, each model run is creating a slightly different scenario regarding how the upper air aligns itself in the east and the strength of the northern part of the jet stream verses the south. Here is what we have seen in the last 4 model runs.
The two main cycle runs from 0z & 12z today show 2 looks with the dynamic overnight run (0z) giving way to the further south and suppressed southern stream 12z run. Now the two mid cycle runs have their own views on this as well...READ MORE AT http://www.meteorologistjoecioffi.com/index.php/2017/01/02/snow-weekend-still-no-weather-model-clarity/