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November 2013 pattern and discussion


WxJordan

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My flurry hopes dashed, I, along with Tony, look for comfort in the CPC 6-10 day precipitation forecast.

"Above average". 

That's something that I don't think I've seen since June. (and only heard a few times in my whole life;)

This jives with the GFS wanting to bring some love out of Peter's Mudhole next weekend.

 

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It's rather notable that we're getting these rather substantial cold HP systems despite a strong +AO/NAO. Here we are about to greet a 1045mb high in the next couple of days. The high amplitude in the wave pattern out in the Pacific has been the big player here.  If and when a sizable block does punch its way into the arctic/greenland region, we'll be ready to roll as far as storminess and prolonged cold goes.

 

For now, enjoy the old fashioned fall weather.

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We now have a full 24 hours worth of model cycles (Tues 0z/12z and Wed 0z) where the GFS develops a blocking pattern in the latter part of the run. All three runs show a different evolution but they all lead to a variation of blocking over Baffin Bay or Greenland by Thanksgiving Week. Depending on exactly how this forms, we could be headed to a really fun pattern after the holiday.

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Euro splitting the PV over the pole with the ridge now shown punching into Greenland as well.  Before, this ridge was being shunted east toward Scandinavia.

 

*IF* this unfolds, this would likely portend another coming Arctic shot (and who knows what else) by Thanksgiving week. Certainly something to watch!

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I hope so.  I'm already getting tired of these side swipe highs.  What we need is one to blast all the way down to Fla, stay a few days, or more, and slap the fool out of MetalMan when he steps outside :)  Meanwhile the rain still has a gulf component, but not as impressive as a week back :)  Funny how that works.  Oh, well, some blocking will cure a lot of ills.  Let it be so.  T

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