Euro Model South Canadian Model North

Euro Model South Canadian Model North


At this point in the afternoon, social media boards are lighting up because the Canadian Weather model went nuts with the weather system for the end of the week. Since everyone is going to see it anyway let’s take a look at what exactly it is doing.

Euro Model South Canadian Model North Canadian Weather Model Friday 03/04/2016

cmc102 Euro Model South Canadian Model North cmc108 Euro Model South Canadian Model North cmc114 Euro Model South Canadian Model North

This is a major winter storm being depicted on the Canadian weather model. It takes the low as it moves across the Ohio Valley, redevelops it off the Middle Atlantic Coast and then intensifies it into a major storm. What it shows aloft is that there is a strong southern stream feature that gets energized buy a system in the northern stream leading to a deep coastal low. The two systems phase on this model.

Euro Model South Canadian Model North Canadian Weather Model Upper Air

gem96 Euro Model South Canadian Model North

This is all fine and dandy except that the issue all winter long as been trying to come to terms with multiple weather systems that phase or don’t phase as timing changes with every run. The Euro model today has a different look. It has a faster and less deep southern feature that times out much differently then the Canadian weather model. It keeps the two streams separate. The result is that the storm that redevelops along the coast tracks east north east and out to sea. The result would be some snow for the Southern areas of the Middle Atlantic States but the northern fringe of the snow shield stays well offshore.

Euro Model South Canadian Model North Euro Model Upper Air

euro96 Euro Model South Canadian Model North

The Euro model up through Saturday night was going with the more phased look before it backed away from that yesterday. While the snow shield is a shade further north on today’s run, it is a small shift and nothing here suggests that the Euro model is about to make a radical shift northward. Again this all has to do with the timing of shortwave energy in the jet stream. Unless the streams time out exactly, it is hard at this point to argue against the European’s solution. The GFS weather model has trended north on the last couple of runs and has a little snow in here for Friday. However it does not have the depth that the Canadian weather model is showing. The NAM model only goes out through Thursday evening at this point so it is not inside the time range for us to gather a clue from this. Another argument against this is that the Ensembles of the Canadian and the GFS are all pretty much south and east of the operational runs. Many runs to go but for now I would still think this is a bet against.


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