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  On 11/11/2014 at 12:55 AM, danstorm said:

Nearly impossible to get such departures with the modifying influence of the Atlantic and airmass modification via the lakes/downsloping.

This sounds right and I agree.

Need one of our stat guys to post NYC's biggest monthly departures (by month).

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  On 11/11/2014 at 12:55 AM, danstorm said:

Nearly impossible to get such departures with the modifying influence of the Atlantic and airmass modification via the lakes/downsloping.

A few upper Midwest stations had their coldest winter on record last year... a -12 degree monthly departure here would be close to a monthly record for cold.

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  On 11/10/2014 at 11:26 PM, bluewave said:

my stats for KNYC........Oct.....Nov.....Dec.....Jan.....Feb.....Mar.....Apr.....Ave.....

2010-11 to 2013-14......0.6.....1.2.....7.3....15.4.....11.5.....2.1........T......38.1

1870-71 to 2009-10........T......0.8.....5.4......7.5......8.9.....4.9......0.8.....28.3

1980-81 to 2009-10........T......0.3.....4.3......7.1......9.2.....4.0......0.6.....25.4

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  On 11/11/2014 at 12:49 AM, Hailstorm said:

That's insane. I would bet my 100 bucks that the core of the cold will be centered over the Northeast this year instead of the Midwest like last year. After all, no two winters are exactly the same in terms of synoptic patterns, right? If NYC would have those departures this winter, then it would be certain that we would come close to breaking NYC's all-time record low.

We were between -7 and -8 in January 2004, and that was with a really warm first week of the month and a monthly low of 1 degree. Our all time record low is -15. I'd bet none of us see that temperature in the city ever again.

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  On 11/11/2014 at 1:48 AM, uncle W said:

my stats for KNYC........Oct.....Nov.....Dec.....Jan.....Feb.....Mar.....Apr.....Ave.....

2010-11 to 2013-14......0.6.....1.2.....7.3....15.4.....11.5.....2.1........T......38.1

1870-71 to 2009-10........T......0.8.....5.4......7.5......8.9.....4.9......0.8.....28.3

1980-81 to 2009-10........T......0.3.....4.3......7.1......9.2.....4.0......0.6.....25.4

We had 3 crap decadal snowfall averages in a row. The 70s, 80s and 90s all had below average numbers with a couple of big winners mixed in. But they weren't enough to overcome all the dud years. So I'm not surprised to see our average still clearly below the long term average when we are still including the 80s and 90s.

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some very cold periods don't show up in monthly records...most cold periods started in one month and ended in another...

coldest 30 day periods... since 1917...I don't have the dates on hand...1917-18 was fromlate December to late January...1933-34 was mostly February and two days in January...
1917-18 19.0
1933-34 19.6
1935-36 20.4
1947-48 21.5
1976-77 21.9
1980-81 22.2
1919-20 22.4
2003-04 22.5
1993-94 23.5
1944-45 23.8
1969-70 24.0
1970-71 24.2
1934-35 24.3
1960-61 24.6
1939-40 24.9
1967-68 25.1
1981-82 25.2
1989-90 25.3
2006-07 25.8
1962-63 25.9
2002-03 25.9
1978-79 26.0
1983-84 26.1
1977-78 26.2
1999-00 26.2
1975-76 27.1
1984-85 27.5
1955-56 27.6
1995-96 27.7
1956-57 27.8
2008-09 27.9
1964-65 28.0
1957-58 28.1
2010-11 28.1
..............................................................................................................................................................................

The warmest...
season....coldest 30 day ave...
1997-98.....37.3.
2011-12.....37.0.
1948-49.....36.3.
1931-32.....35.8.
2007-08.....35.7.
1952-53.....35.5.
2001-02.....35.4.
1936-37.....34.9.
1990-91.....34.5.
1932-33.....33.9.
1950-51.....33.0.
1974-75.....33.0.

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  On 11/11/2014 at 1:22 AM, danstorm said:

-7 is doable, -12 is impossible here, especially in winter

NYC had a Feb. average temp of 19*F in 1934, which is about a 15-degree negative departure from the normal Feb. long-term average of 34*F. Plus, there are other similar cases of double-digit Feb. negative temp departures.

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  On 11/11/2014 at 2:49 AM, mulen said:

I would piss on a sparkplug some winter seasons for a snowshower easy does it boys.Last year was just fine kept the cabin fever at bay or the blues from singing.see ya

if you're still in the tire business it should be another good year...be well...

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  On 11/11/2014 at 4:35 AM, Snow88 said:

 

Starting to look interesting for interior elevated areas. Should be a fun 5 days of tracking

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  On 11/11/2014 at 4:47 AM, David-LI said:

maybe we should start a thread to track this storm threat?

OZ GFS came in with a colder solution and better storm track here for frozen early next week - BUT it looks suspicious - don't like the placement of that LP over Lake Superior........

 

http://www.tropicaltidbits.com/analysis/models/gfs/2014111100/gfs_mslp_pcpn_frzn_us_26.png

 

Also when is the last time anyone here has seen this much snowcover in mid November ? 

 

http://www.tropicaltidbits.com/analysis/models/gfs/2014111100/gfs_asnow_us_29.png

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  On 11/11/2014 at 5:04 AM, NEG NAO said:

OZ GFS came in with a colder solution and better storm track here for frozen early next week - BUT it looks suspicious - don't like the placement of that LP over Lake Superior........

 

http://www.tropicaltidbits.com/analysis/models/gfs/2014111100/gfs_mslp_pcpn_frzn_us_26.png

 

Also when is the last time anyone here has seen this much snowcover in mid November ? 

 

http://www.tropicaltidbits.com/analysis/models/gfs/2014111100/gfs_asnow_us_29.png

 

Cold begets cold and snow begets cold. We are in for one hell of a ride this winter.

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  On 11/11/2014 at 5:46 AM, Chaser25973 said:

Cold begets cold and snow begets cold. We are in for one hell of a ride this winter.

one thing to consider is there will eventually be a relaxation in this pattern before it reloads again - this pattern we are entering would have been better off waiting about 2  - 3 weeks IMO - would have better results for us snow hounds in December then November near the coast.........

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Today the models look to break down the pattern well before months end which is probably too fast. Models love breaking down patterns quickly but a relaxation after the cold will occur.

We've yet to enter the colder air mass regardless so it doesn't make sense to plan so far ahead. Also the chance of snow is still out there.

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  On 11/11/2014 at 12:04 PM, SnoSki14 said:

Today the models look to break down the pattern well before months end which is probably too fast. Models love breaking down patterns quickly but a relaxation after the cold will occur.

We've yet to enter the colder air mass regardless so it doesn't make sense to plan so far ahead. Also the chance of snow is still out there.

 

The CFSV2 Dec temps. The warmth right along the coast  looks wrong as the model seems to do that for every 5 day period  .

As it may be overestimating the Atlantic influence .

 

Even though we may pull back .  It`s very hard to expect wire to wire cold. However with a favorable Pacific SST look I think we will just re fire this .

ala 03- 04 .

 

That is not a bad look for Dec and would expect that cold to carry all the way to the coast .

post-7472-0-17151300-1415708998_thumb.pn

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  On 11/11/2014 at 12:30 PM, PB GFI said:

The CFSV2 Dec temps. The warmth right along the coast  looks wrong as the model seems to do that for every 5 day period  .

As it may be overestimating the Atlantic influence .

 

Even though we may pull back .  It`s very hard to expect wire to wire cold. However with a favorable Pacific SST look I think we will just re fire this .

ala 03- 04 .

 

That is not a bad look for Dec and would expect that cold to carry all the way to the coast .

its obvious the model is not handling warmer ocean temps early in the season correctly and their effect on land all up and down the east coast.....

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the determining factor for the Miller A event next week will be the exact track of the storm up the east coast. The 0Z models were just far enough off the coast to support a more frozen scenario BUT the 6Z run of the PGFS has shifted to a just inland coast hugger and rain along the coast and more frozen well inland....

 

http://www.tropicaltidbits.com/analysis/models/gfsp/2014111106/gfsp_mslp_pcpn_frzn_us_25.png

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The key with the 144 hour storm will be the strength of the east based -NAO. We really need 

that ridge to build further west closer to the Davis Strait. Otherwise the SE Ridge will pump

enough for the low to take a warmer track for the city and coast. 

 

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  On 11/11/2014 at 12:57 PM, bluewave said:

The key with the 144 hour storm will be the strength of the east based -NAO. We really need 

that ridge to build further west closer to the Davis Strait. Otherwise the SE Ridge will pump

enough for the low to take a warmer track for the city and coast. 

 

attachicon.gifecmwf-ens_z500a_nhem_7.png

agree 100 % the problem is the models have not been handling the NAO position and strength correctly lately - so have to keep all options on the table for now..........

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  On 11/11/2014 at 12:57 PM, bluewave said:

The key with the 144 hour storm will be the strength of the east based -NAO. We really need

that ridge to build further west closer to the Davis Strait. Otherwise the SE Ridge will pump

enough for the low to take a warmer track for the city and coast.

attachicon.gifecmwf-ens_z500a_nhem_7.png

I wrote last week that you are going to see variance from far away from OP run to OP run , if the Vortex presses you may see suppression .If it retrogrades too much the models will surge the warm air .

I think when push comes to shove , the cold is there and an opening on the EC will occur and we will SNOW pre thanksgiving.

I am focused on the pattern. The cold is close by the waters off the EC are warm and we have seen several storms already this fall run from OBX TO CC . If we get that I think the cold will win out .

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  On 11/11/2014 at 1:12 PM, PB GFI said:

I wrote last week that you are going to see variance from far away from OP run to OP run , if the Vortex presses you may see suppression .If it retrogrades too much the models will surge the warm air .

I think when push comes to shove , the cold is there and an opening on the EC will occur and we will SNOW pre thanksgiving.

I am focused on the pattern. The cold is close by the waters off the EC are warm and we have seen several storms already this fall run from OBX TO CC . If we get that I think the cold will win out .

 

The thread the needle scenario that worked with and east based NAO was 11-29-95. That situation didn't have the

primary over the lakes like the models are showing for the 144 hr threat. There was an earlier low right ahead of the

storm that acted as the 50/50 which allowed the second storm to come out cold.

 

http://mp1.met.psu.edu/~fxg1/NARR/1995/us1129.php

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  On 11/11/2014 at 1:27 PM, bluewave said:

The thread the needle scenario that worked with and east based NAO was 11-29-95. That situation didn't have the

primary over the lakes like the models are showing for the 144 hr threat. There was an earlier low right ahead of the

storm that acted as the 50/50 which allowed the second storm to come out cold.

 

http://mp1.met.psu.edu/~fxg1/NARR/1995/us1129.php

here is an additional link detailing that event

 

http://www.raymondcmartinjr.com/weather/1996/29-Nov-95-500MillibarMaps.html

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