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.
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.