CNCsnwfan1210
Member
Exhibit AYou can also see the 18z GEFS is quickly evolving into a big -NAO after Feb 5.
All that westerly momentum in the Pacific Jet that’s creating the mild pattern initially gets used up by large southward-shifted cyclonic wave breaks in/around N America. That process will kickstart a -NAO.
Remember that the -NAO actually is associated with an equatorward shifted storm track in/around N America and N Atlantic. We’re doing just that later in week 2 and even more so into week 3
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