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Thanksgiving Eve SECS/MECS Discussion II


gkrangers

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Taking a look at that ECMWF map...everything is displaced too far northwest.  There will be heavy accumulations 25 miles northwest of NYC...maybe even closer. 

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This is why with a Miller A storm the EURO is not to be taken lightly. It makes its reputation on these type of storms. Score another one for King EURO!

 

The pattern was really obvious with the strong WAR and no blocking. The interesting thing about the too cold

GFS solutions were that if you used the 500 mb teleconnections maps you got the warmer idea correct.

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Taking a look at that ECMWF map...everything is displaced too far northwest.  There will be heavy accumulations 25 miles northwest of NYC...maybe even closer. 

 

You are missing the point. It kept the heaviest accumulations NW. We probably should never 

discuss exact accumulations until at least 24 hrs before an event since days two and three before

can have some model solutions that will only cause disappointment later.

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lol...no thanks im pretty sure that model was showing warning level snow for me(northern nassau)like 24 hours ago...hate to break the news to you that models a joke like all the others are

Not correct. It is not a joke and is a benchmark model for Miller A's including this one. Its been consistently warm and tucked in for a past several days. Its temp profiles may be off a bit as many models would be but overall the ECMWF is better than other competition with pure breed Miller A's, it occasionally stumbles but not much. It even had sandy making landfall in NJ wayyy before any other global model caught on

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You are missing the point. It kept the heaviest accumulations NW. We probably should never 

discuss exact accumulations until at least 24 hrs before an event since days two and three before

can have some model solutions that will only cause disappointment later.

 

I don't understand...oh wait...you mean the point was that the ECMWF was correct in forecasting the heaviest snow axis well NW of the coastal plain..yeah I think I see...my point was just that it may well be placed too far NW...a comment on the specificity of the heaviest accumulations.

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The pattern was really obvious with the strong WAR and no blocking. The interesting thing about the too cold

GFS solutions were that if you used the 500 mb teleconnections maps you got the warmer idea correct.

Yes agree strongly the EURO temp profiles were more accurate than that of the GFS which will likely verify too cold. congrats well N&W of NYC for the first substantial snow of the season though!

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Damn it pamela! You know what i mean! :lol: JK ;)

 

Not much of a snowstorm for us out here on Long Island unfortunately...though as the storm exits stage right...maybe a period of snow towards the end. 

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Yes agree strongly the EURO temp profiles were more accurate than that of the GFS which will likely verify too cold. congrats well N&W of NYC for the first substantial snow of the season though!

 

Yeah, the 500 mb maps were all that you really needed to look at. That 594 DM ridge to our east 

wasn't a good signal for the coast. But the -EPO kept interior sections in the game.

 

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Not a huge amount of cold air to draw upon for the coastal plain; 38 F in Scranton & Worcester...both those airports are up near 1000 feet a.s.l....but it should be cold enough for a heavy, wet snow inland and especially above 300 foot contour. 

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I always thought model verification scores were not tabulated until the storm was over...lol.

What about the EURO after mid-Feb. last winter?   Didn't it suffer a manic seizure and predict 3 major events here that did not happen!?  NYC had only 2" more after that point, not 30"+!

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Taking a look at the temperature profile...comes as a bit of a shock that the nearby interior might see their snow totals reduced because the column might be too warm at the 700 mb level...I can't remember many winter storms where > 0 C air at that level (I think that's around 10,000 feet up or so...almost two miles in the sky) was a factor. Lot of vertical motion with this event...

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Sorry if improper thread to post this, but this is currently the most active and I'm about to lose service as I head into the tunnel... What would you guys forecast Rockland county to be receiving and what would be the worst impact timing of my return commute from the city?

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Sorry if improper thread to post this, but this is currently the most active and I'm about to lose service as I head into the tunnel... What would you guys forecast Rockland county to be receiving and what would be the worst impact timing of my return commute from the city?

Rockland will be right on the border...southern sections will be a couple inches at most...northern sections up in the hills will be 6+ most likely with much higher impacts. All afternoon is gonna suck through evening.

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Lets see what this looks like at 10 am through the city .

This may be a tad aggressive .

It`s 37 up in Laurel Hollow so interested to see if this line can swing through Westchester the N shore of Long Island and into N NYC later on .

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Very interesting observations coming in around the area. Some places reporting a temperature drop of 3 degrees once the snow started.

 

The models had the temperature dropping  with the heaviest rain. The big problem is the 700 mb warm surge

pushing north by around noontime that the models caught onto Monday night.

 

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Interesting note on the storm: here in Medford, NY we have a mix of rain and sleet. Temps down to 40. I didn't expect to see any frozen precip until after sundown.

Not saying we're going to see a change over to snow earlier; just thought it was something to keep an eye on.

I started as sleet before 6am at 40/31. Was rain at 7am at 38/31 now snow at 35/31 with coating on all non paved surfaces. Suspect initial burst was heavy enough to allow sleet before rain then finally to snow as column is cooled.

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Rockland will be right on the border...southern sections will be a couple inches at most...northern sections up in the hills will be 6+ most likely with much higher impacts. All afternoon is gonna suck through evening.

Zip code 10952. Just moved there from Staten (just got married!) And unsure of elevation level there...
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