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Lets Talk January...Pretty Please?


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I'm inclined to agree, December has been a wash for many of us but the combination of climo and factors changing for the better makes me say prepare for real winter wx.

History shows a lackluster December does not = a deathblow to winter prospects.

Depends on where you live. Someone posted the other day in the NY forum that of the top 20 warm Decembers, 19 had less than average snow in NYC. I think this one was in the top 7 or 8.

It doesn't mean a death blow but it does have some correlation to being more lousy the further south you go.

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Jan 2011 Lite, me thinks....HM, where you at?

I've been dropping January nuggets all over this forum. I'm this close (you obviously can't see my finger spacing lol) to calling the 1/5-1/10 time frame a KU possibility (the B&K wave likes 1/2-1/4, the AAM wave like 1/4-1/8 and the sun likes 1/5-1/10 haha).

The Aleutian Low / PNA ridge idea has a lot of model support and is possibly driven by partial feedback from the stratosphere, as well as the complete retrogression of the B&K wave. The NAO looks to continue negative through Jan 10. I'm looking at a possible Heather signal then per AAM and solar stuff.

The one thing missing is the analogs which are not as adamant about a KU. They would suggest a big storm but not historic.

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GFS LR is looking almost '94-esque...finally gets the PV over here and tries to park it near Hudson Bay with a huge -EPO.

That is how we would get arctic air into the CONUS...get that robust -EPO block churning and opening the spillway from Siberia over to this side of the pole.

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GFS LR is looking almost '94-esque...finally gets the PV over here and tries to park it near Hudson Bay with a huge -EPO.

That is how we would get arctic air into the CONUS...get that robust -EPO block churning and opening the spillway from Siberia over to this side of the pole.

All the GFS runs seem to replace the -NAO/Central Canada block with a potent -EPO, leading to a strong cold air drain into the CONUS. I think it's early to say whether the PV migrates more to our side or stays near Siberia where we have the anomalous low heights behind the block, but in any case January should start colder than normal.

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0z GFS OP is train wreck unless you like the same crap pattern.

It looks cold and stormy until 300 hours out. I hope you're not looking past 300 hours? There's a near miss at Day 8 on the 0z GFS...powerful storm is just off the coast because the trough axis is a bit east, but has a nice +PNA and a strong low pressure.

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I don't know how long the better pattern lasts as there are signs the PAC jet may increase again, especially of the MJO progs are right. The first week looks good verbatim, but the longevity and stability of this pattern IMHO is sort of questionable.

Back on 12/15 or so, I was thinking that things would be a little bit more gradual with a PNA shift and a bit later on in January due to wave lengths and an ill-defined MJO signal. But then on 12/20, I stated exactly your concerns here and shifted everything earlier.

The B/K wave, kelvin wave through the IO, residual -AO/low sun and -AAM propagation are all saying the first 10 days of the month have the cold. GFS will of course break down the PNA spike too quickly but it will be inevitable that it does mid-Jan as the forcing moves into Indonesia. Expect a warm period then. I joked around in the Mid Atlantic forum back on the 20th saying we couldn't really call it a "thaw" when we were never frozen to begin with, haha. From this point on, we watch the stratospheric vortex break down and hope we can setup another gradient pattern potential late Jan-early February.

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Back on 12/15 or so, I was thinking that things would be a little bit more gradual with a PNA shift and a bit later on in January due to wave lengths and an ill-defined MJO signal. But then on 12/20, I stated exactly your concerns here and shifted everything earlier.

The B/K wave, kelvin wave through the IO, residual -AO/low sun and -AAM propagation are all saying the first 10 days of the month have the cold. GFS will of course break down the PNA spike too quickly but it will be inevitable that it does mid-Jan as the forcing moves into Indonesia. Expect a warm period then. I joked around in the Mid Atlantic forum back on the 20th saying we couldn't really call it a "thaw" when we were never frozen to begin with, haha. From this point on, we watch the stratospheric vortex break down and hope we can setup another gradient pattern potential late Jan-early February.

uh oh..HM last week you said 2nd week in January, now late January early Feb?..I'm starting to get this 96-97 winter feeling..except this December has been much warmer..neutral winters after La Nina's are not good

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