Winter Storm arriving Dec 26?

It was December the 20th, and on this date, the NWS was beginning to take notice of a very large and intense low pressure system that was currently located off in the Pacific. No one was sure, at the time, as to the track or impact that this system might have on Midwestern states around December the 26^th! At the time, all three computer models were in agreement that there was going to be some sort of weather related impact! I planned to track the progress of this low to see what it does...

Dec 20 - While it was windy in the center part of the Midwest,  low pressure system was still slowly approaching the West Coast on Thursday.

 Dec 21 - There was still a large amount of uncertainty as the the track of this large storm. On model, the GFS (Global Forecast System - One of the operational forecast models run at NCEP. The GFS is run four times daily, with forecast output out to 384 hours) sees the system running a southerly track while the ECMWF (European Center for Medium-Range Weather Forecasts - Operational references in forecast discussions typically refer to the ECMWF's medium-range numerical forecast model, which runs out to 10 days) is calling for a more northerly run. We could see rain with one and snow with the other. Stay turned.