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Winter 2012-2013


TheTrials

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November's before our snowiest winters...it looks like the storm track is more important than temperatures......

Keep this in mind, from me and T. Gigi from Mt Holly...

Temperature in October and precipitation in November. Of course, that would have given us a normal winter last year, but the bad thing was that the pattern was trending worse, not better.

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ovember before our least snowiest winters...the storm track is more inland than the snowiest winters and temperatures are still above average...

Look at the direction of the storm track, that's more important. In the snowless years, the storm track is more W-E. In the snowy years, it is more S-N, indicating more amplification/troughiness in the East.

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Look at the direction of the storm track, that's more important. In the snowless years, the storm track is more W-E. In the snowy years, it is more S-N, indicating more amplification/troughiness in the East.

And of course the S-N orientation allows more moisture from the gulf to be tapped into as well as making it easier for storms to bomb out along the eastern coast.

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And of course the S-N orientation allows more moisture from the gulf to be tapped into as well as making it easier for storms to bomb out along the eastern coast.

I wasn't really talking about that so much. North of DC, you can get a good snowstorm with Atlantic moisture from a MIller B. Storms that move flat West to East just have a tendency to be drier, faster-moving, and warmer. Not to mention a pattern like that is flooded with Pacific air.

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a weak nino is no guarantee we will have a good winter...There is no guarantee we will get a weak el nino...It might end up a weak positive...here are some weak analogs that were not great winters and some that were...

1952-53...Started off great but nothing after the middle of January...

1953-54...Had a cold and snowy January but the rest of the winter was mild and snowless...

1958-59...Cold but snowless...

1969-70...very cold with average snowfall...

1979-80...mild and snowless...

1976-77...very cold with average snowfall...

1990-91...mild with average snowfall...

1992-93...mild first half...Cold and snowy second half...

1993-94...Cold and snowy/icy...

2003-04...Cold and snowy...

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a weak nino is no guarantee we will have a good winter...There is no guarantee we will get a weak el nino...It might end up a weak positive...here are some weak analogs that were not great winters and some that were...

1952-53...Started off great but nothing after the middle of January...

1953-54...Had a cold and snowy January but the rest of the winter was mild and snowless...

1958-59...Cold but snowless...

1969-70...very cold with average snowfall...

1979-80...mild and snowless...

1976-77...very cold with average snowfall...

1990-91...mild with average snowfall...

1992-93...mild first half...Cold and snowy second half...

1993-94...Cold and snowy/icy...

2003-04...Cold and snowy...

you missed 63-64,77-78 and 02-03 which were weak,and great winters..overall I think a weak nino gives us the best shot of a decent winter

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@keith L.I.- weak el ninos are our best shot at getting a great winter but uncle W is right they can also be stinkers, although not as bad as la nina winters. My biggest worry currently is a blocking reversal and lack of cold air as winter starts. Were still on a above average temp regime so its a little worrisome

you are right - for the psychology of this board we need to get off to a fast start rather then one of those starts where winter doesn't get going until the second or 3rd week in January - we are about a degree above avg in september so far - things to watch going through the fall is the buildup of the snowcover in canada and of course the NAO which should bring more troughs into the east if it is negative ..............

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you missed 63-64,77-78 and 02-03 which were weak,and great winters..overall I think a weak nino gives us the best shot of a decent winter

77-78 was weak but it was a second year nino...the other two were more on the moderate side...2006-07 was on the weak side also...If the AO goes negative big time in November we'll see a great start to the winter...I thought last year was going to be another good winter after Octobers snowstorm...I'll be watching for blocking to develope in November and stay for a while...If not we will get off to a slow start like 1965, 1994 and 2006...

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NEG-NAO and bluewave the jamstec looks promising as an overall better look for the beginning of winter. One thing that id like to start seeing or atleast see some signs of is some cold air coming into play into canada this next month and a half so the snowcover as neg nao said can help the cold air be more powerful as it moves into our area and be more aiding for possible snow storm possibilities as we head into december. Furthermore the blocking needs to continue as well and not pretty much reverse for winter and stay positive.

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Weak ENSO signal is the best for us, lol.

I do not like near neutrals falling after La Ninas though its based on a small sample set, there have been 4 the last 30 years, 85-86, 89-90, 96-97, and 01-02 and all were very poor. Its hard to say if thats just coincidence or not because prior to 1985 there were no neutral following Ninas dating all the way back to 1950. There is also the near neutral near the solar max cycle having some stinkers too, 89-90 and 01-02 fit that bill and 78-79 and 79-80 (closer to a Nino) are a few others. I definitely will feel better if we see the ENSO index reach 0.5-0.7 or so.

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I have come to the conclusion that it is next to impossible to accurately predict snowfall amounts in NYC Metro for a season in advance

just look at the wide variations in amounts from year to year - example - last year many forecasters predicted avg to above avg snowfall and we got less then 10 inches total - other years only avg to below avg snowfall for the season was predicted and one big storm doubled the expected total snowfall - just look at this and try to make sense out of it

http://www.erh.noaa.gov/okx/climate/records/monthseasonsnowfall.html

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I have come to the conclusion that it is next to impossible to accurately predict snowfall amounts in NYC Metro for a season in advance

just look at the wide variations in amounts from year to year - example - last year many forecasters predicted avg to above avg snowfall and we got less then 10 inches total - other years only avg to below avg snowfall for the season was predicted and one big storm doubled the expected total snowfall - just look at this and try to make sense out of it

http://www.erh.noaa....onsnowfall.html

You can make an attempt after you see what the October and November pattern looks like.

Last year's forecast of very little snow for us was an easier winter forecast than we usually get.

Once the October pattern showed the blocking setting up in the Russian Arctic, the low snowfall

forecasts were a slam dunk with the ENSO conditions .When we see where the blocking sets

up in October across the Northern Hemisphere, we'll have some clues as to what the winter

may look like. But specific snowfall amount forecasts are very challenging. You can count

yourself ahead of the game if you can at least get below, near, or above normal ranges correct

for our area. You can even get a winter with a great blocking developing like February 2007

but miss out on a big snowfall. The Valentine's Day ice special was a good example of this.

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It's only a one year snow drought but does it continue...There were six stinkers around here from the 1949-50 to 1954-55...The late 1920's and early thirties were bad snow years...the late 1990's were horrible...nine great winters in the last 20 years...That's not to shabby...we also have nine stinkers...it's feast or famine...

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It's only a one year snow drought but does it continue...There were six stinkers around here from the 1949-50 to 1954-55...The late 1920's and early thirties were bad snow years...the late 1990's were horrible...nine great winters in the last 20 years...That's not to shabby...we also have nine stinkers...it's feast or famine...

Yeah after 96 what a string of duds...but compared to last year i would take them....nyc i believe went a few years without 6+ snowfall after 96

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Yeah after 96 what a string of duds...but compared to last year i would take them....nyc i believe went a few years without 6+ snowfall after 96

these are the years without a 6" snowfall in NYC...I hope I got them all...

2011-12...4.3"

2006-07...5.5"

2001-02...3.0"

1999-00...5.5"

1998-99...4.5"

1997-98...5.0"

1996-97...3.5"

1989-90...4.7"

1988-89...5.0"

1987-88...5.8"

1985-86...4.5"

1984-85...5.7"

1979-80...4.6"

1976-77...5.2"

1975-76...4.2"

1972-73...1.8"

1971-72...5.7"

1962-63...4.2"

1958-59...5.5"

1954-55...3.9"

1952-53...4.5"

1951-52...5.8"

1950-51...3.0"

1949-50...3.8"

1941-42...3.2"

1936-37...5.7"

1931-32...2.0"

1930-31...3.9"

1929-30...3.9"

1927-28...5.3"

1918-19...1.4"

1910-11...4.5"

1908-09...5.1"

1900-01...4.0"

1897-98...5.0"

1894-95...5.0"

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It looks like if we used 5 inches as a threshold we'd be able to throw like half of those years out. I wonder what the numbers for winters with at least one 7+ inch storm look like. There's probably a huge shift going from 5 to 7 inches as a minimum.

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It looks like if we used 5 inches as a threshold we'd be able to throw like half of those years out. I wonder what the numbers for winters with at least one 7+ inch storm look like. There's probably a huge shift going from 5 to 7 inches as a minimum.

to many to list...since 1890 there are 69 of the 123 winters with at least a 7" storm...

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