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November 2018 Discussions & Observations Thread


Rtd208

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6 hours ago, LibertyBell said:

How strong do you think this one will get?  Close to -2?

The models continue to correct stronger with the -NAO block the closer that we get. We'll probably have a better idea on the exact number over the next week.

New run

ecmwf-ens_z500a_nhem_6.thumb.png.ee36f3e7df3aa6699ecb855c589982cc.png

Old run

ecmwf-ens_z500a_nhem_11.thumb.png.98b5313ef07965256bc6e8ae39c4d075.png

 

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38 minutes ago, bluewave said:

 

The models continue to correct stronger with the -NAO block the closer that we get. We'll probably have a better idea on the exact number over the next week.

New run

ecmwf-ens_z500a_nhem_6.thumb.png.ee36f3e7df3aa6699ecb855c589982cc.png

Old run

ecmwf-ens_z500a_nhem_11.thumb.png.98b5313ef07965256bc6e8ae39c4d075.png

 

Thanks for the update. I read your other post about the strong negative NAOs in November of previous years, and the following winters, was very eye opening. 

Do you think this reinforces the idea of a general averaged -NAO during the upcoming season ? 

 

 

 

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7 hours ago, LibertyBell said:

Don any concerns that we'll see more coastal huggers this season since that seems to be a characteristic of this month?  That would make it more like 2013-14 than 2002-03.  Although December 2002 had such an event that turned snowy Christmas night.

It's difficult to be sure about storm tracks. But the kind of blocking that could take hold during at least part of December would favor above to much above average snowfall for December. I would not be surprised to see 6" or more snow in December and possibly in excess of 10".

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1 hour ago, bluewave said:

 

The models continue to correct stronger with the -NAO block the closer that we get. We'll probably have a better idea on the exact number over the next week.

New run

ecmwf-ens_z500a_nhem_6.thumb.png.ee36f3e7df3aa6699ecb855c589982cc.png

Old run

ecmwf-ens_z500a_nhem_11.thumb.png.98b5313ef07965256bc6e8ae39c4d075.png

 

 

Chris ,  This was it`s 3rd correction so far by the EPS in the last 15 days. The EPS is the king in the EP region , but it has been terrible under the ridge / block so far this November. Last week someone on here said , " the cold now looks like only 3 days long " , I thought that was wrong and was using the GEFS at 500 , it handled the Scan ridge better early on.

The EPS will now bust 3 times in this pattern now and the reason is it did not understand the Scandinavian ridge and the effects underneath in the N/E . Now as it migrates to Greenland around 10 day it`s warm period between day 9 -14 look wrong. 

 

I posted this earlier away ,

Once again the EPS will bust here. So far I have seen the Euro not grasp the strength of the Scandinavian ridge with its result underneath east of the Mississippi.

But to make matters worse you are now going to center the positive during this period over Greenland and it continues the 5 day torch theme. 

The GEFS has been better and will beat the Euro again 

eps_t850a_5d_noram_57.png

gefs_t2ma_5d_noram_57.png

Now once past day 12 , things will really begin to get interesting at the end of the month through Dec 10 with regards to this set up.

 

 

gfs_ao_bias.png

gfs_nao_bias.png

 

 

Look out after from week 3 on for something major along the E/C.  The upcoming period as these anomalies relax screams look out.

 

gefs_z500a_nh_57.png

compday.flyVkb1CWI.gif

I am curious as to when the last time the NAO/AO both achieved a -4 / -5 SB BN ? I want to say Boxing Day , but maybe UNC or DON could help out here. 

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36 minutes ago, PB COLTS NECK NJ said:

 

Chris ,  This was it`s 3rd correction so far by the EPS in the last 15 days. The EPS is the king in the EP region , but it has been terrible under the ridge / block so far this November. Last week someone on here said , " the cold now looks like only 3 days long " , I thought that was wrong and was using the GEFS at 500 , it handled the Scan ridge better early on.

The EPS will now bust 3 times in this pattern now and the reason is it did not understand the Scandinavian ridge and the effects underneath in the N/E . Now as it migrates to Greenland around 10 day it`s warm period between day 9 -14 look wrong. 

It's interesting how the Euro seasonal had the NATL blocking signal on the Nov 5th run. But the EPS has been playing catch up. 

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48 minutes ago, CarLover014 said:

Pretty much tough year round. Very hard to get an all snow event. Usually will turn to sleet at some point.

You live 5 miles off the ocean in Southern New Jersey. Even with a northeast wind the flow is off the ocean. You guys rely on strong blocking to make snow possible.

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6 hours ago, donsutherland1 said:

It's difficult to be sure about storm tracks. But the kind of blocking that could take hold during at least part of December would favor above to much above average snowfall for December. I would not be surprised to see 6" or more snow in December and possibly in excess of 10".

We are already seeing this storm overachieve here on the south shore! It looks like midwinter out there with really pretty heavy snow sticking to everything and my pond has been frozen here since this morning!

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6 hours ago, LongBeachSurfFreak said:

Ohhhh, makes sense, I thought you were on eastern LI. Even a NE flow is onshore for you. Tuff place for early season snow!!!

wow 6 hours later and still all snow very heavy snow here on the south shore of western nassau!

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5 hours ago, NJwx85 said:

You live 5 miles off the ocean in Southern New Jersey. Even with a northeast wind the flow is off the ocean. You guys rely on strong blocking to make snow possible.

He would have loved Feb 1899 (Cape May 34 inches of snow- state record!)

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2 minutes ago, LibertyBell said:

We are already seeing this storm overachieve here on the south shore! It looks like midwinter out there with really pretty heavy snow sticking to everything and my pond has been frozen here since this morning!

Allentown is doing very well, so far. My sister was in Hawley and reported similar scenes.

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Just now, donsutherland1 said:

Allentown is doing very well, so far. My sister was in Hawley and reported similar scenes.

Oh I spend my weekends just north of there in the mountains.  I'm on the south shore of Nassau County during the week.

This storm is already overperforming here on the south shore of Long Island, very heavy snow sticking to everything including roads and my pond has been frozen over since this morning.

In Carbon County in PA it had been snowing since last weekend lol.

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Next 8 days still averaging near 40degs., or about 5degs. BN.

Month to date is -1.1[49.1].    Should be -2.5[45.9] by the 24th.     There was a remarkable 6.4" of Snow yesterday.

Currently 42 here at 6am---with a wet, non-WinterWonderland look to it.

Temperature has crashed to  35.5 and wind has picked up here at 7am.

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1 hour ago, CIK62 said:

Next 8 days still averaging near 40degs., or about 5degs. BN.

Month to date is -1.1[49.1].    Should be -2.5[45.9] by the 24th.     There was a remarkable 6.4" of Snow yesterday.

Currently 42 here at 6am---with a wet, non-WinterWonderland look to it.

Temperature has crashed to  35.5 and wind has picked up here at 7am.

In addition to the record snow, yesterday was the first -15 daily temperature departure since January 7th. I am not sure if that is a record long stretch between -15 days in NYC.






			
		
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Yesterdays 6.4 inches of snow in NYC becomes only the 5th November storm of 6 inches or more. It also becomes the 193rd storm of six inches or more since records (1869) have been kept.

NYC 6 + inch snows by Month

5          2.6%       November
37       19.2%       December
48       24.9%       January
65       33.7%       February
31       16.1%       March
7        3.6%          April

193  100.0%    Total
 
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Great stat from Josh Timlin. Check out how 1st and 3rd place occurred during the 2010's extreme snowfall period.

The last 1” or more of snow in Central Park fell on April 2. If an inch were to accumulate this Thursday, then 2018 would place 3rd for the least number of days between 1” snow events. Records go back to 1869 (149 years). pic.twitter.com/VrHRYLFWvU
 
There you have it. The 3rd shortest break between the end of one snow season and the start of the next in NYC. This includes 149 years of data back to 1869!pic.twitter.com/3YeuVTPi5F
 
DsIGMZVWoAE72_J.jpg-small.jpg.c7311143222746f0e4631891f5c852b2.jpg
 
 
 
 
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