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January Banter


mackerel_sky

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We can stick fork in that, the coastal, -AO,-NAO, SAI, OPI, MJO, QBO, snow, this winter, next winter, winter after..,,

 

What's a -NAO?  I only know of +NAOs.  I've read about -NAOs in archaic history books that are coated with thick layers of dust, but it doesn't seem to have any relevance to the modern world.

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What's a -NAO?  I only know of +NAOs.  I've read about -NAOs in archaic history books that are coated with thick layers of dust, but it doesn't seem to have any relevance to the modern world.

Back when the dinosaurs roamed the earth I think it had some relevance.

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And now the face punch from the NWS GSP just posted on Twitter. Reminder of what we don't have

Sent from my iPhone

 

Oh I remember that storm very well... Back in Fayetteville I was finally able to enjoy a nice snowstorm for once (missed the post xmas storm for a hockey tournament) Picked up a solid 5 inches of snow... I certainly got a kick out of Raleigh & Greensboro getting screwed over. 

Jan-10-11-2011-NC-snowstorm.gif

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Assuming the correlation is correct we should see more -NAO winters with +AMO but we haven't the past 5 winters, including this one.

:lol:  That's the thing with all of these long range/extended medium range outlooks, they are all based under the assumption that everything will follow in textbook style, but that doesn't happen  :P    Such is weather  :lol:  

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May be time to face the fact that most of the SE has already had all the winter weather it will see this winter. I just don't see this pattern changing anytime soon.

Man, didnt you get the memo, the heart of winter in a weak modaki niño , is Feb and March!! Stock up on firewood now, while it's cheap!
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Assuming the correlation is correct we should see more -NAO winters with +AMO but we haven't the past 5 winters, including this one.

 

Yeah, ok... The AO & the NAO have been negative in the last 3 of 5 winters (DJFM), this one isn't even halfway over yet of course. That's a majority of the past 5, so yes we have been getting more -NAO winters of late, whether you realize it or not...

 

Winter      DJFM AO      DJFM  NAO

2009-10   -2.675              -2.260

2010-11   -0.329              -0.993

2011-12   +0.751             +1.047

2012-13   -0.921               -0.333

2013-14   +0.439              +0.563

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Assuming the correlation is correct we should see more -NAO winters with +AMO but we haven't the past 5 winters, including this one.

 

Well the correlation is correct & I explained why several days ago...

 

It's not so much that -AMO=+NAO or +AMO=-NAO, but the change in the sign of the derivative in the NAO/AO when the AMO switches phases i.e. the AO/NAO average begin to decrease as the +AMO comes on, & vis versa, however there's an appreciable residence time at the front half of the multidecadal AMO phase cycle where the decadal AO/NAO average will not change sign. To put things into perspective, at the most recent -AO/NAO trough, by the mid-late 1960s, we had been in the +AMO since 1925, about 40 years, a lot of time to load the NAO & AO negative. Whereas we only entered the recent +AMO phase in 1995, and have a meager 20 years to our repertoire, but the average is still falling regardless. If we didn't have a dearth of El Ninos in the earlier half of this decade, the AO/NAO average would likely be quite a bit lower than where it is now...

 

JFM-Seasonal-AONAO-Index-AMO-Regime-Flip

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And now the face punch from the NWS GSP just posted on Twitter. Reminder of what we don't have 434b48b62e9bf683b930b5e7d10f8300.jpg

Sent from my iPhone

I saved the surface map from that event. One of the few storms that had a frozen ground before the storm which allowed for higher accumulations.

 

1-10-11snowstormsurfacemap.jpg

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Just saw this post in the pattern discussion thread.

It's going to be a step down process, just like last cold shot. Starts out west and progresses east, after a few cutters, we will be in the sweet spot!


Hmm. Step down. Haven't I seen that before?
 

I was somewhat discourage the other day because I couldn't see a medium term step down to a better pattern. Now, there seems to be building support for such a change, so I'm less restless about it now.


Yeah that is good support! Lol. This whole system is going to be fun to watch. Really going to be a very chilly week. The big pattern change coming looks good from around the 20th on. A nice step down pattern would be nice around Christmas.


Yeah the pattern is going to be headed in the right direction at least. Don S had a great post yesterday about the upcoming pattern change and step down process.


Even if it ends up not real cold for the last week of Dec. in the SE (hard call right now): as long as it is somewhat colder than normal (high odds of that), the Cohen analogs as well as 1939-40 will be pretty much on track and would suggest a quite cold January since they're suggesting a step down pattern. So, we continue to look good and I'm as pumped as ever for the winter as a whole. :)


It's showing a step down pattern which it did yesterday dumping in the west first. Keeps going back and forth between solutions. Does not mean a hill of beans as we see the GFS can't even get a 5-7 day storm right much less a pattern changef


I think we are looking at a couple of weeks in out neck of the woods.  Looks very step downish...  Could be a quick step down deal though.


Patience my friends, we're seeing a step down process right now. I think come the first week of January we'll all be happy. Need to endure a few cutters to help jump start the pattern to a colder one.


I knew I'd heard that term at least once before.  Must be baby steps.
 

I guess I'm just not much of one for a step down pattern. To me, step down patterns just burn time and you get little in return.


Indeed.  Actually, step down, can quickly turn into, beat down.

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