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Medium-long range thread


tombo82685

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FWIW,

The weeklies continued the theme of se ridging through the period, but they gradually build the Aleutian ridge as we get into January. Perhaps this is due to Nina climo and the battering of MT events and warming in the Stratosphere over this region. They have a pretty strong +AO through the period....almost Dec '07 like with confluence in se Canada.

The trend of flattening the ridge in the Aleutians as we get closer is concerning, but I guess sooner or later..we'll see that ridge build. Also, the PNA appears to want to go + and believe it or not...the EC has busted too low with it. I remember some thoughts from a few people of the persist transient -EPO ridge just west of NAMR and that might be related to the model busting too low. Either way, the AO has overpowered everything...but I thought I'd share this with you guys. I think we may be well into Jan before any sig changes in the AO region, but with any luck..we can get the PV to weaken a bit as we head through the month.

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need to put out the flame somehow

Joe Bastardi

Wait'll you get a load of the motherlode of arctic air that shows up in western Canada in Jan. Warmingistas, get ready to make excuses

Joe Bastardi

Pac northwest... after Jan 5th, and probably by Jan 15th major and severe cold will invade US.. You guys first. plains in it too

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12Z CMC has a Miller A around Christmas. Still in the long range but its the nicest model porn this year

I don't know that I would call that a Miller A with only a sub-1016mb sfc reflection.

Sure it's nice to dream though.

(Now this part isn't directed at you, but just in general:)

Anyone who's expecting a Miller A out of this pattern needs a reality check. With a raging +AO and +NAO, we're stuck with progressive flow (too progressive for significant cyclogenesis) and we'll be lucky if we even see the SE ridge relax enough to get a storm to track to our south.

Sure if we get a transient +PNA pattern with just the right timing then we might me able to squeeze something out, but the two storms that come to mind that were mostly PNA-dependent were 1/26/11 and 2/11/06, and both occurred much later in the season when we had a bit more cold to work with.

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I don't know that I would call that a Miller A with only a sub-1016mb sfc reflection.

Sure it's nice to dream though.

(Now this part isn't directed at you, but just in general:)

Anyone who's expecting a Miller A out of this pattern needs a reality check. With a raging +AO and +NAO, we're stuck with progressive flow (too progressive for significant cyclogenesis) and we'll be lucky if we even see the SE ridge relax enough to get a storm to track to our south.

Sure if we get a transient +PNA pattern with just the right timing then we might me able to squeeze something out, but the two storms that come to mind that were mostly PNA-dependent were 1/26/11 and 2/11/06, and both occurred much later in the season when we had a bit more cold to work with.

Well I say Miller A because the energy origionates in the SW on the CMC, gets ejected out into the MS Valley and phases, then it tracks up through GA and there is secondary cyclogenesis off Cape Hatteras. Perhaps its more of a hybrid.

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