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December 2018 General Discussion & Observations


Zelocita Weather

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Models have some light snow possible for Thursday night

 

56 minutes ago, 495weatherguy said:

I recognize it’s nothing more than a pipe dream, just wishing for warmer weather.   Too early to be this cold

Too early?

It's December

4 minutes ago, Hailstorm said:

18z GEFS actually suggests a favorable pattern manifests itself for us at the end of next week (22nd), well before Christmas.

image.thumb.png.11b44c612607310b4b9b3dfd5284f63e.png

Everything is pointing to a colder and possibly stormier last week of the month. Maybe a white Christmas?

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11 minutes ago, Snow88 said:

Models have some light snow possible for Thursday night

 

Too early?

It's December

Everything is pointing to a colder and possibly stormier last week of the month. Maybe a white Christmas?

I think chances are somewhat higher than normal for a white Christmas this year. Look at how the 18z GFS changed from its 12z run. It now shows extensive cross-polar flow for the northern half of the USA, with a humongous -EPO, -AO and east-based NAO. Ideally, we would want a bit of a less suppressed look than what is shown in the image below; however, it will inevitably change as we get closer in time.

New run:

image.thumb.png.8cb9a4075adedd78f22bee05ddb05a52.png

Old run:

image.thumb.png.c9fd5b83ef199800a90cf050ff58a008.png

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For some reason, the best chance for measurable snow and heavy snow in NYC from Christmas Eve to New Year's Eve is on 12-26.

Date......# years measurable snow.....greatest snowfall

12-24.....................16..............................11.4.....1912

12-25.....................17................................7.0.....1909

12-26.....................22..............................26.1.....1947.....18.0.....1872.....12.2.....2010....11.2......1933

12-27.....................19.................................7.8....2010

12-28.....................12.................................6.6....1990

12-29.....................19.................................4.0....1880

12-30.....................12................................12.0....2000

12-31.....................16..................................4.0....1948

 

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I could only find five years since 1912 that had snow falling at midnight Christmas eve and one year it ended just before midnight...

1919...snow falls from 10am 12/24 to 2am 12/25...2.8" fell...

1961...snow ends just before midnight...6" fell...

1966...snow falls from 7am 12/24 to 6am 12/25...7" fell...

1993...light snow falls from 10pm to 2am...

2002...light snow from 11:30pm to 2am changing to a mix and rain...

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18 hours ago, LibertyBell said:

Nov 1989 and Nov 2012 were both great on Long Island and in Central NJ.  Double digit snowfall totals from each storm in November and Nov 89 actually occurred the night before Thanksgiving!

Both were meh here, other than the timing. 3-5 deals, but in the 80's any measurable snow was welcome. Something about my area, we often miss the big totals. Not always, but often.

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13 hours ago, North and West said:

What gets me is the bonkers headline (could be clickbait, who knows) that millennials don't own can openers. C'mon, really?

A lot of people don't anymore, at least not electric ones. I brought one home last year and no one else, even the adults ( from another country ) could operate it. We'd had hand ones for 25 years here, but I grew up with electric ones. My son the millenial ( if he is a millenial ) is the only one who uses it with ease, ironically.

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1 hour ago, uncle W said:

meh...it was still cold enough that you could not go swimming unless you are a member of the polar Bears...

Even the fish don't hang around in the cold water Unc, ya gotta go further and further as we get into Dec. The great winter fisheries we had locally 40 years ago for whiting and mackerel and cod are long past. 

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1 hour ago, CarLover014 said:

I hate to be a party poopers, but if the snow and rain, if any, could hold off on Christmas Eve, that'd be great. I'm not looking forward to an already miserable 18 hour drive to Southwest Florida. 

There is no other kind of drive to FL, hombre....anytime I have to go their it's miserable. Can't stand the place. Get sick from something every time I am forced to spend time there.

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30 minutes ago, uncle W said:

 

1966...snow falls from 7am 12/24 to 6am 12/25...7" fell...

...

This 12.24.66- 12.25.66 snowstorm is my earliest recollection of snow as an 8 YO kid. I knew the day before it was going to snow, I was up very early that Sat morn to watch the first flakes fall.

Watching all those apartment bldg courtyards get snow covered was quite a treat.

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1 minute ago, sferic said:

This 12.24.66- 12.25.66 snowstorm is my earliest recollection of snow as an 8 YO kid. I knew the day before it was going to snow, I was up very early that Sat morn to watch the first flakes fall.

Watching all those apartment bldg courtyards get snow covered was quite a treat.

I was 17 in 1966 and it was a very good year...now I'm in the Autumn of the year...Frank Sinatra from 1966...that storm changed to sleet in the afternoon that kept accumulations down...

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2 hours ago, uncle W said:

2002...light snow from 11:30pm to 2am changing to a mix and rain...

Forecast for NYC was not even an inch of snow after the changeover

The changeover on Christmas day started earlier and I received 5 inches of wind driven snow. I remember my family couldn't believe it.

I quickly put up TWC and Paul Kocin was talking about the storm

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1 hour ago, uncle W said:

I was 17 in 1966 and it was a very good year...now I'm in the Autumn of the year...Frank Sinatra from 1966...that storm changed to sleet in the afternoon that kept accumulations down...

I was 19, in my second year of college. I remember riding with my dad in his 61 Chrysler Newport. Handled pretty well in the snow. At least, Unc, thanks to Frank, we can think of our lives as vintage wine from fine old kegs, from the brim to the dregs we pour sweet and clear, it was a very good year.

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2 hours ago, ALEXA said:

weeklies?

Not great. A sustained trough does not build into the East until after 1/15. But a lot of caution is required due to the moderate stratospheric warming that is imminent, Pacific SSTAs, and disagreements with some of the other guidance toward the end of December. Given those factors, I don’t give much weight to this run in the extended range.

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8 hours ago, JerseyWx said:

Lol that month was a dream for me, and probably @Cfa too.

It was scarily close to ideal for me, I never thought I’d experience that here. It could’ve been a little sunnier but beggars can’t be choosers lol. :lol:

That December’s legendary warmth was a direct answer to February’s (nightmarish) extreme cold. As extreme as the 2010’s have been, Feb 15 (-12) and Dec 15 (+13) stand out as exceptional to me, that range of temperature departures in a single year has to be some sort of record.

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Next 8 days averaging 42degs., or about 5degs. AN.

EPS has had an empty 10-day Snow outlook for a whole week now.    The GEFS is 50/50 on at least 3" through Boxing Day.

For the record, the RRWT is 6degs. BN for the next 30-day period.     We can hope.   Short warmup only.

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This was actually the coldest first 10 days of December in NYC since 2010. Just goes to show the persistence of the colder pattern which began in mid-October. The average temperature from 10-15 to 12-10 was the coldest since 2002 in NYC.

Dec 1-10 NYC average temperature

2018....37.6

2017....43.0

2016....41.4

2015....48.3

2014....40.2

2013....41.9

2012....46.0

2011....46.7

2010....34.6

Coldest 10-15 to 12-10 in NYC since 2000:

#1....44.2....2002

#2....45.0....2018

#3....46.0....2000

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