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KA Winter Forecast 2013-2014


Ji

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Just wanted to let you know I changed the list slightly to add 61-62. I also took away 92-93 from the "w qbo-neutral" set since the shear stress wasn't clear-cut.

at BWI, measurable snow every month NOV-MAR totaling 35.2" with only JAN a stinker at 2"; cold too!

I'd take that in a heartbeat

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I would suggest that those who proclaim "November calls the shots" engage in some actual long range forecasting themselves and see what the results are. For those observing this site for info I reject the idea that November is a big player-by then the dye is cast.

I agree that when it comes November it is when the dye is cast it is not the month that calls the shots not anymore than October is. It makes sense to get the warm weather for October  rather than November because sometimes the weather for Nov will last well into December and we don't want that!

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I agree that when it comes November it is when the dye is cast it is not the month that calls the shots not anymore than October is. It makes sense to get the warm weather for October  rather than November because sometimes the weather for Nov will last well into December and we don't want that!

Last year in Winchester, November was about 4.5 degrees under and Dec/Jan avg about 5 degrees over.

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Last year in Winchester, November was about 4.5 degrees under and Dec/Jan avg about 5 degrees over.

Thar proves I guess nothing is written in stone! Feb and March were below normal although and I believe you received near normal snow for your area although the cities faired poorly.

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I think you are right to a large extent, but I do think November can be helpful for December temps....There have been years, like 2006 where you have a stable pattern in place and you know it will be hard to dislodge it very quickly....If you have a vortex locked up in the EPO region, especially north or west of AK, it is a pretty good bet it will be a stable feature for a while,....

Yes. By November 15th/20th there is a good indication of what is ahead for next several weeks, maybe even a month.

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Yes. By November 15th/20th there is a good indication of what is ahead for next several weeks, maybe even a month.

I think that's what most people are referring to about november. Some second half of Nov patterns (as matt pointed out) can be a great tool for Dec predictions. Equating Nov to the predict and entire djf period is quite inaccurate though.

Dec is a biggie for the entire winter period when there is an anomalous + or - AO. We've hashed that out at great length the last 3 years or so.

I think one of the most important things I've learned about d10-15 on the models is that they can be used with skill for predicting how stubborn a pattern can be. When the flip remains in d10+ range then it's safe to assume that nothing is happening for quite a while and the models are premature in switching things. Kinda stating the obvious but there is skill when interpreting what the lr is showing. I've watched many "flips to a better pattern" get delayed 15 days or more. I've also seen the opposite when our "great pattern" is going away and winter cancels start flying just to have the great pattern last much longer than originally thought.

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I think that's what most people are referring to about november. Some second half of Nov patterns (as matt pointed out) can be a great tool for Dec predictions. Equating Nov to the predict and entire djf period is quite inaccurate though.

Dec is a biggie for the entire winter period when there is an anomalous + or - AO. We've hashed that out at great length the last 3 years or so.

I think one of the most important things I've learned about d10-15 on the models is that they can be used with skill for predicting how stubborn a pattern can be. When the flip remains in d10+ range then it's safe to assume that nothing is happening for quite a while and the models are premature in switching things. Kinda stating the obvious but there is skill when interpreting what the lr is showing. I've watched many "flips to a better pattern" get delayed 15 days or more. I've also seen the opposite when our "great pattern" is going away and winter cancels start flying just to have the great pattern last much longer than originally thought.

Exhibit A: Winter of 2001/2002

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Thanks..As I mentioned I am not going to touch 57-70 simply because the ENSO state was so favorable for a southern stream during that stretch...doesn't mean those aren't good analogs, but they don't make sense to me

 

Yeah, I wouldn't use them in a temperature composite for the CONUS / East Coast either, in a raw-sense.

 

I don't like how the global circulation seems so retracted poleward and the + height anomalies are coupling to the SST anomalies in the N PAC / Atlantic. Modeling has this continuing for the next 1-2 weeks, easy.

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Yeah, was just joking-- it's not analog that's on the table. 

 

 

I think VAB had 3 storms over a foot. 

remember that winter like it was last year

after PDII, watching that early March, 1980 storm crush them was tough to take, but I did get around 4 or 5"  out of it (memory fades when I want to forget storms like that one!), so it wasn't a complete loss

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remember that winter like it was last year

after PDII, watching that early March, 1980 storm crush them was tough to take, but I did get around 4 or 5"  out of it (memory fades when I want to forget storms like that one!), so it wasn't a complete loss

 

 

Yeah, I was in New Castle, DE, I think we had 4 inches and my Dad telling me 2 feet in NC. 

 

 

Down here in LYH-- It was a 30 inch winter with 10 inches in early Jan, 8 in early March and 3-4 3-5 inch events added in. 

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Yeah, I was in New Castle, DE, I think we had 4 inches and my Dad telling me 2 feet in NC. 

 

 

Down here in LYH-- It was a 30 inch winter with 10 inches in early Jan, 8 in early March and 3-4 3-5 inch events added in. 

on top of getting whiffed by the storm that night, I was watching this game and remember wanting to strangle someone

http://en.wikipedia.org/wiki/1980_ACC_Men%27s_Basketball_Tournament

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It's as simple as this.....

 

in winter's following a gvt shutdown, DCA has received above average snowfall 8 of 12 times. Below normal temps 9 of 12 times.

 

That's an awesome stat!  Wonder if it has anything to do with snowballs in hell....

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per Howiee

Temperatures-

Dec:-0.5 to +0.5

Jan:+1

Feb:+1

Overall +0.5 to +1.0

Snowfall for DCA: 10-15"

Analog years 1947,51,59,60

So-nowhere near the blowtorch call that proved so right last winter. Believes DCA will not have a snow event exceeding 4".

 

So to clarify-- is the analog year the first or second half-- EG 47-48 or 46-47??

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Isn't this fairly standard?...for height and SST anomalies to have a symbiotic relationship and feed off each other?

Indeed it is and it's resembling 2011, 2008 and 1999 strongly (just the N pac-Atlantic coupling). That's an ugly sign for winter fans but not entirely hopeless.

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  • 1 month later...

Just thought I would bump this back up to run alongside CWG outlook.

 

I still like Keith's outlook..and that he didn't stick his neck out....last year he went for a home run and mostly nailed it...I think his outlook this year conveys the extreme uncertainty and I think using restraint was a good way to go.....it is still early, but I like his December call as of now given the potentially cold start.....I stuck my neck out this year on temps, and I think it might have been a bad winter to do that, even though I may verify....

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I still like Keith's outlook..and that he didn't stick his neck out....last year he went for a home run and mostly nailed it...I think his outlook this year conveys the extreme uncertainty and I think using restraint was a good way to go.....it is still early, but I like his December call as of now given the potentially cold start.....I stuck my neck out this year on temps, and I think it might have been a bad winter to do that, even though I may verify....

He and I are close on Dec, he went -0.5 to +0.5 and I went 0 to -1. it's Jan where we really diverge as I went -3 to -5 but added that I had some misgivings that Dec could be the really cold one although I though Jan was the more likely very cold candidate.

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