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NYC/Tri-State Area Obs/Disco


Nikolai

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I said that half jokingly...though per the Met Office in Britain, the UK is well on its way to the coldest December since record keeping began there...

William, and we may have some interesting winters in the near future with the Dalton-like minimum we've plummeted into. Sun's back to its spotless days after being a little active (relative to the past 2 years) in October.

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-3.2 for the month in Monmouth County (essentially we're experiencing average February temps, with a mean of 31.8 right now). It's more difficult to get big time negative departures in suburbia/rural areas as you need a lot of very cold/radiational cooling nights. These CAA/windy cold nights have been the perfect recipe for sending KNYC into the tank - and they have, at about -5.5 for the month.

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-3.2 for the month in Monmouth County (essentially we're experiencing average February temps, with a mean of 31.8 right now). It's more difficult to get big time negative departures in suburbia/rural areas as you need a lot of very cold/radiational cooling nights. These CAA/windy cold nights have been the perfect recipe for sending KNYC into the tank - and they have, at about -5.5 for the month.

I am in surburbia and my temp departure is -5.2 degrees thru today.

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December 22, 2010

High: 38.7F

Low 26.7F

Precip: NONE

Temps running way under forecast today....currently 33/20 with stiff CAA on gusty NW winds whereas the forecasted high was 38F. NWS has been much too aggressive with daytime highs in this cold regime; I can't help but wonder if they have some sort of bias towards warmth in general. Last week, we had several days that were 5-7F below forecast, especially during the big cold snap after the cutter.

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Enjoy it while it lasts. It may be the last that we see for a while. The cam below was recently taken in the Melville area.

The flurries and light snow were persistent here for several hours. I did a hike with a friend and the snow was a nice touch, Afterwards, my wife met up with us and we went out for lunch, after which i went down to Lake Ronkonkoma just to check it out in the snow. The north and south ends of the lake were like two different lakes...the south end was open water and the high winds were generating pretty good waves for a partially frozen lake. The north end was frozen solid with blowing snow on the ice. I took some photos:

post-290-0-54033100-1293140542.jpg

post-290-0-90971500-1293140563.jpg

post-290-0-02923900-1293140590.jpg

post-290-0-26671000-1293140611.jpg

post-290-0-93994400-1293140628.jpg

post-290-0-58235200-1293140647.jpg

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Ed, why the discrepancy between the north and south sides of the lake? Are the temps that different on each side?

BTW some GREAT images!

Thanks. No discrepancy in temps...its less than a mile across. I think the wind picks up steam over the water which keeps it more churned up which keeps the south end from freezing. It does eventually freeze (at least some years) and is a very popular lake for ice boating.

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After likely underreporting on the 12/20/2009 event, I figured I'd round up...

Why do you think you underreported?

I wouldn't go by what your neighbors reported. There were some legitimate incredible totals and also a bunch of me-too reports. Many were close to the best band that set up, but not in it and that can be a little hard to take (it was for me).

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They had 24" at East Setauket and 25" at Mt Sinai (the cooperative that never was). I'm right between those two spots and came up with 18". It seems hard to think those two guys could be off by that much...especially the NWS employee at Sinai..

It might be that Mt Sinai is good and E Seatuket was off. You can't go by what someone else is measuring if you are able to measure on your own. A couple of miles made a world of difference. I had 17" and there was over 20" a couple of miles to my south (legitimately). It happens. I'm getting a little sick of it happening, but it happens.

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Another chilly day in Westchester although I'd like to see the overnight lows dipping a bit more, doubtless would be much colder if we had a snowpack. It's really a shame not to achieve the maximum cold temperatures out of such frigid airmasses....we'd be running like -7F for the month instead of -5F if we'd managed to develop a snowpack. Anywhere here are the stats for 12/23 in southern Westchester:

HIGH: 33.4F

LOW: 29.0F

Precip: None

Currently 28.6 with some gusty NW winds and clear skies. Definitely a winter night,

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They had 24" at East Setauket and 25" at Mt Sinai (the cooperative that never was). I'm right between those two spots and came up with 18". It seems hard to think those two guys could be off by that much...especially the NWS employee at Sinai..

What happened to Mt Sinai William? It would have been great if it could have been made into a co-op, because I still think Long Island's snowfall jackpot is between there and Miller Place. 32-36" or so.

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How will this storm stack up to other December storms...8-12" puts it in a special category...Last year the first big storm occurred on December 19-20th...The fourth major storm on that date...December 26th is another date with more than a few major snowstorms...

6" plus December snowstorms in NYC...

34 times in 141 years NYC saw a snowstorm 6" or greater in Dec...Three years saw two each.....December 26 had five major storms with three over 10"...14 storms from the 21st to 26th...

amount...dates......

26.4" 12/26-27/1947

18.0" 12/26/1872

16.0" 12/19-20/1948

15.2" 12/11-12/1960

14.0" 12/5-7/2003

13.7" 12/21-22/1959

12.7" 12/15/1916

12.0" 12/30/2000

11.4" 12/24/1912

11.2" 12/26/1933

10.9" 12/19-20/2009

9.1" 12/13-14/1917

8.3" 12/19-20/1945

8.1" 12/5/1886

8.0" 12/3-4/1957

8.0" 12/25-26/1909

7.9" 12/5/1926

7.7" 12/19-20/1995

7.5" 12/23-24/1883

7.2" 12/27-28/1990

7.1" 12/24-25/1966

7.0" 12/26/1890

7.0" 12/15-16/1896

7.0" 12/12-13/1904

7.0" 12/3-4/1911

6.8" 12/25-27/1969

6.6" 12/23-24/1963

6.5" 12/25/1902

6.2" 12/12-14/1902

6.2" 12/23-24/1961

6.0" 12/27-28/1873

6.0" 12/22-23/1896

6.0" 12/17-18/1904

6.0" 12/5/2002

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