The 0z GFS is predicting the Arctic Oscillation and North Atlantic Oscillation to move into a very strong negative phase going into mid February. What is being projected is the polar vortex to move south and hit the US as a very cold blast and possibly a snowstorm. I am afraid I cannot answer questions on where it will hit as i honestly don't know at this point.
The downside of this forecast is how the 0z GFS is the only one predicting this- the GFS Ensembles, ECMWF, ECMWF Ensembles are much more modest with the forecast. However- the ECMWF also predicts the polar vortex to be extremely displaced south into Canada and possibly the US.
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