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Which November will show up? November 2015 obs/discussion


dmillz25

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Today's Arctic Oscillation (AO) figure was +4.073. That broke the daily record of +3.509 from 1978. It is also only the 8th November figure of +4.000 or above and the 6th highest November figure on record. The prior +4.000 or above values occurred on the following dates:

 

November 2, 1978: +4.544 (November record)

November 20, 1978: +4.009

November 15, 1994: +4.363

November 20, 1994: +4.177

November 21, 1994: +4.444

November 15, 2013: +4.469

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Today's Arctic Oscillation (AO) figure was +4.073. That broke the daily record of +3.509 from 1978. It is also only the 8th November figure of +4.000 or above and the 6th highest November figure on record. The prior +4.000 or above values occurred on the following dates:

 

November 2, 1978: +4.544 (November record)

November 20, 1978: +4.009

November 15, 1994: +4.363

November 20, 1994: +4.177

November 21, 1994: +4.444

November 15, 2013: +4.469

what was a promising ao forecast a few days ago has gotten muzzled again...

post-343-0-06703300-1447170155_thumb.gif

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Models bring the ridge back days 7-10 after a brief hiatus this weekend.

It has pretty much dominated our weather pattern since May.

test8.gif

500.gif

Last February we were a little ice cube in a big tub of boiling water. We pulled a miricle. Now it's back to reality. I think December is going to be +7 or something crazy like that

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Today's Arctic Oscillation (AO) figure was +4.073. That broke the daily record of +3.509 from 1978. It is also only the 8th November figure of +4.000 or above and the 6th highest November figure on record. The prior +4.000 or above values occurred on the following dates:

 

November 2, 1978: +4.544 (November record)

November 20, 1978: +4.009

November 15, 1994: +4.363

November 20, 1994: +4.177

November 21, 1994: +4.444

November 15, 2013: +4.469

 

It's interesting that the last -4.000 or lower AO reading was back in March 2013. Someone should do a paper on

what caused the dominant Northern Hemisphere high latitude blocking to shift from the AO region to the EPO

and PNA areas after March 2013.

 

2013 3 18 -4.147

2013 3 19 -5.193

2013 3 20 -5.688

2013 3 21 -5.399

2013 3 22 -5.240

2013 3 23 -4.855

2013 3 24 -4.601

2013 3 25 -4.299

2013 3 26 -4.021

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What a disgusting pattern that we are in. I am ready for the cold and wintry weather.

Here's what I think..I have witnessed 3 super nino's in my life 72-73.82-83 and 97-98..they were all warm and mostly snowless.I am prepared for that..if this winter is different I will be surprised..I think it's a take what you can get winter

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Last February we were a little ice cube in a big tub of boiling water. We pulled a miricle. Now it's back to reality. I think December is going to be +7 or something crazy like that

 

Its pretty unlikely this pattern is going to continue that long.  Seeing things this putrid now means some change is coming in 4-6 weeks probably...it may not be extreme cold but it probably will be a colder pattern than this.

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Why do I feel this is going to be one of those winters where the cold and snow or blocking is always 10+ days away and never comes.

Also with that ridge another 70F+ reading wouldn't surprise me.

 

Eh. 2011-2012 was understandable because we were about to start a solar maximum and a monster polar vortex was sitting over Alaska. This time it's nearly the opposite. It may seem like that at first, but we can break from this horrid pattern with a good SSW. 

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Its pretty unlikely this pattern is going to continue that long. Seeing things this putrid now means some change is coming in 4-6 weeks probably...it may not be extreme cold but it probably will be a colder pattern than this.

I'm a fan the backloaded winter idea. I think we end up with at least some decent cold and snow. I also think it's a painfull road to get there
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what was a promising ao forecast a few days ago has gotten muzzled again...

I agree. There had been two clusters of ensemble members: one stayed positive and the other dropped negative to strongly negative. The former seems to have become more likely on the guidance. It will be interesting to see how this plays out and, much more importantly, whether blocking develops as we move toward or into December.

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It's interesting that the last -4.000 or lower AO reading was back in March 2013. Someone should do a paper on

what caused the dominant Northern Hemisphere high latitude blocking to shift from the AO region to the EPO

and PNA areas after March 2013.

 

2013 3 18 -4.147

2013 3 19 -5.193

2013 3 20 -5.688

2013 3 21 -5.399

2013 3 22 -5.240

2013 3 23 -4.855

2013 3 24 -4.601

2013 3 25 -4.299

2013 3 26 -4.021

I agree. I believe that would make an excellent paper. It might also provide some new insight into whether changes related to Arctic sea ice, among other possible variables, are playing a role.

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I agree. I believe that would make an excellent paper. It might also provide some new insight into whether changes related to Arctic sea ice, among other possible variables, are playing a role.

 

I would really like to know how the CCSM4 initialized in January 2013 was able to successfully forecast the shift.

 

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I'm a fan the backloaded winter idea. I think we end up with at least some decent cold and snow. I also think it's a painfull road to get there

 

You can see it in the distribution of the 12 inch of greater snowfalls in NYC. All the storms from 12/5-1/16

are either La Nina or neutral with the exception of 1964. So El Ninos require patience.

 

25.8...12/26, 1947..............neutral

20.2...1/7-1/8, 1996............La Nina

20.0..12/26-12/27 2010......La Nina

18.0...12/26, 1872..............La Nina

16.0...12/19-12/20, 1948....neutral

15.2....12/11-12/12, 1960...neutral

14.0...12/5-12/7, 2003........neutral

13.0...1/15-1/16 1879.........La Nina

12.7...12/15, 1916..............La Nina

12.5...1/12-1/13, 1964........El Nino

12.0...12/30, 2000..............La Nina

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You can see it in the distribution of the 12 inch of greater snowfalls in NYC. All the storms from 12/5-1/16

are either La Nina or neutral. So El Ninos require patience.

 

25.8...12/26, 1947..............neutral

20.2...1/7-1/8, 1996............La Nina

20.0..12/26-12/27 2010......La Nina

18.0...12/26, 1872..............La Nina

16.0...12/19-12/20, 1948....neutral

15.2....12/11-12/12, 1960...neutral

14.0...12/5-12/7, 2003........neutral

13.0...1/15-1/16 1879.........La Nina

12.7...12/15, 1916..............La Nina

12.5..12/13, 1964...............La Nina

12.0...12/30, 2000..............La Nina

1963-64 was a weak el nino with a white Christmas...the coldest part of that winter was pre Christmas...the 1948 storm was 19.6" in Battery Park...

http://fultonhistory.com/Newspaper%205/Brooklyn%20NY%20Daily%20Eagle/Brooklyn%20NY%20Daily%20Eagle%201948%20Grayscale/Brooklyn%20NY%20Daily%20Eagle%201948%20Grayscale%20-%206152.pdf

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1963-64 was a weak el nino with a white Christmas...the coldest part of that winter was pre Christmas...the 1948 storm was 19.6" in Battery Park...

http://fultonhistory.com/Newspaper%205/Brooklyn%20NY%20Daily%20Eagle/Brooklyn%20NY%20Daily%20Eagle%201948%20Grayscale/Brooklyn%20NY%20Daily%20Eagle%201948%20Grayscale%20-%206152.pdf

 

Yeah, 6-11 inch storms seems to be the best that NYC has done in most El Nino years from 12/1- 1/15 outside 

January 1964.

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You can see it in the distribution of the 12 inch of greater snowfalls in NYC. All the storms from 12/5-1/16

are either La Nina or neutral with the exception of 1964. So El Ninos require patience.

25.8...12/26, 1947..............neutral

20.2...1/7-1/8, 1996............La Nina

20.0..12/26-12/27 2010......La Nina

18.0...12/26, 1872..............La Nina

16.0...12/19-12/20, 1948....neutral

15.2....12/11-12/12, 1960...neutral

14.0...12/5-12/7, 2003........neutral

13.0...1/15-1/16 1879.........La Nina

12.7...12/15, 1916..............La Nina

12.5...1/12-1/13, 1964........El Nino

12.0...12/30, 2000..............La Nina

What about December 2009? Or did NYC not surpass 12" in that storm?

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