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Winter Banter Thread


Rjay
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On 3/8/2023 at 1:51 PM, GaWx said:

 A big part of the problem here and in other CFS Twitter posts is that the CFS is strongly cold biased, especially over snowcover. And the CFS often has snowcover when it isn't realistic. It has snowcover when it shouldn't because it is cold biased. So, it becomes a vicious cycle.

 Just as an example of this strong CFS cold and snow bias since RDU is one of the cities analyzed, I'll analyze all of the major 0Z 3/8 model runs for hour 132 at RDU (for 12Z on Monday 3/13):

 First of all, RDU NWS has a forecast for RDU Sun night of rain and a low in the lower 40s:

"SUNDAY NIGHT   RAIN LIKELY. LOWS IN THE LOWER 40S. CHANCE OF   RAIN 70 PERCENT."

 The 0Z 3/8 CFS has ~1" of snowcover as of 12Z on 3/13 because it is cold biased and had a high near 36 the day before with wintry precip falling vs a high from the mid 40s to low 50s on the other models with rain/no snowcover on the other models:

https://www.pivotalweather.com/model.php?m=cfs&p=snod-imp&rh=2023030800&fh=132&r=conus&dpdt=&mc=
 

 Partially as a result of this snowcover, the 0Z 3/8 CFS has RDU at an unrealistically cold 32 as of 12Z on 3/13:

https://www.pivotalweather.com/model.php?m=cfs&p=sfct-imp&rh=2023030800&fh=132&r=conus&dpdt=&mc=

 Now, I'll compare the CFS' 32 with the 0Z 3/8 runs of the other major models and the already mentioned NWS for 12Z on 3/13 at RDU (they all have rain and no snowcover):

Euro 49

UKMET 43

GFS 43

CMC 42

ICON 42

NWS 42

CFS 32

Followup for @donsutherland1 and others:

1. RDU did actually get snow and sleet yesterday, but there was only a trace vs that CFS run's wintry precip that lead to 1" of snowcover.

2. The actual high yesterday was only 41. So, although the CFS' ~36 did end up too cold, the other models with their mid 40s to low 50s were all too warm with some ~10 too warm.

3. The actual 12Z (8AM EDT) temperature today was 40. So, the CFS' 32 verified 8 too cold. But the Euro's 49 was 9 too warm. The other 4 along with the NWS were also too warm but only by 2-3.

4. In summary the CFS verified too snowy and cold as expected, but the others were too warm.

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5 minutes ago, donsutherland1 said:

March-April 1996 had 2 4" or above snowstorms at JFK Airport. There was an additional 3" storm.

Don, was there a 7 inch snowstorm in the middle of March that melted on the same day, I remember something like that.  But that 7 inch report was from Massapequa.  The sun came out as soon as the snow ended and it warmed up quickly.  It was an amazing day, we had mid winter and late spring on the same day lol.

 

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3 minutes ago, Will - Rutgers said:

in 12 hours you will be unable to use the global financial system i hope you have a lot of dogecoins saved up my man

Seeing as my financial adviser is @snowboy19 and his reckless capitalistic mindset all I can say is, I have the fascists on my side. 

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Since I’m into climo convos and feel this is more appropriate space to discuss than the storm thread what if we broke down NYC metro into following zones that seem to relatively have similar climo. 

 

NJ Coast 


NYC/LI/Central NJ 

 

Eastern Bergen/Southern/Westchester/CT Coast 

 

Western Bergen, Passaic, Rockland, Northern Westchester/inland SW CT

 

Sussex, Orange, Putnam, Eastern Ulster, Dutchess 

 

Sullivan, Western Ulster 

 

 


 

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Since I’m into climo convos and feel this is more appropriate space to discuss than the storm thread what if we broke down NYC metro into following zones that seem to relatively have similar climo. 
 
NJ Coast 

NYC/LI/Central NJ 
 
Eastern Bergen/Southern/Westchester/CT Coast 
 
Western Bergen, Passaic, Rockland, Northern Westchester/inland SW CT
 
Sussex, Orange, Putnam, Eastern Ulster, Dutchess 
 
Sullivan, Western Ulster 
 
 

 

Morris County?

giphy.gif


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8 minutes ago, snowman19 said:

@donsutherland1 Looks like Joe Bastardi’s forecast of -5F for temps and 20+ inches of snow for NYC from 3/1 - 4/15 is in some trouble…..

It is. Things are falling apart more and more each day. Only a March 16-April 15, 1956 outcome would produce both the snow and cold he forecasts. In coming days even that won't be enough.

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5 hours ago, Winterweatherlover said:

Since I’m into climo convos and feel this is more appropriate space to discuss than the storm thread what if we broke down NYC metro into following zones that seem to relatively have similar climo. 

 

NJ Coast 


NYC/LI/Central NJ 

 

Eastern Bergen/Southern/Westchester/CT Coast 

 

Western Bergen, Passaic, Rockland, Northern Westchester/inland SW CT

 

Sussex, Orange, Putnam, Eastern Ulster, Dutchess 

 

Sullivan, Western Ulster 

 

 


 

I wholeheartedly endorse this list. And as much as I love Dons posts, I wish he could take out Philadelphia from the daily updates and any reference to it. Regarding the zones you propose Philadelphia is only relevant to a small portion of zone 2, no others. They have their own forum let them stay there. Maybe substitute HPN for Philadelphia in the temperature references? In the updates it much better serves regions 2-6 than any reference to Philadelphia. 

Just one Eagle hating persons opinion. 

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58 minutes ago, CPcantmeasuresnow said:

I wholeheartedly endorse this list. And as much as I love Dons posts, I wish he could take out Philadelphia from the daily updates and any reference to it. Regarding the zones you propose Philadelphia is only relevant to a small portion of zone 2, no others. They have their own forum let them stay there. Maybe substitute HPN for Philadelphia in the temperature references? In the updates it much better serves regions 2-6 than any reference to Philadelphia. 

Just one Eagle hating persons opinion. 

I could go on forever about the different LI climate zones by themselves and what’s favored here vs NYC but I digress lol. 

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6 hours ago, Winterweatherlover said:

Since I’m into climo convos and feel this is more appropriate space to discuss than the storm thread what if we broke down NYC metro into following zones that seem to relatively have similar climo. 

 

NJ Coast 


NYC/LI/Central NJ 

 

Eastern Bergen/Southern/Westchester/CT Coast 

 

Western Bergen, Passaic, Rockland, Northern Westchester/inland SW CT

 

Sussex, Orange, Putnam, Eastern Ulster, Dutchess 

 

Sullivan, Western Ulster 

 

 


 

You know the big problem this would solve, the constant references like "oh boy just saw the Euro we're done".

And I always think who's done? It's a big forum, is Suffolk done Nassau, the Jersey coast, SW CT, Orange Sussex and Putnam, NYC? I dream of a world where we can declare the GFS says we're done for zones 1 & 2, but 5 & 6 get buried.  Rgem just annihilated zones 3 & 4, 5 & 6 not so much. That is my Utopia, a man can dream can't he?

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You know the big problem this would solve, the constant references like "oh boy just saw the Euro we're done".
And I always think who's done? It's a big forum, is Suffolk done Nassau, the Jersey coast, SW CT, Orange Sussex and Putnam, NYC? I dream of a world where we can declare the GFS says we're done for zones 1 & 2, but 5 & 6 get buried.  Rgem just annihilated zones 3 & 4, 5 & 6 not so much. That is my Utopia, a man can dream can't he?

giphy.gif


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