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12-29 Storm Threat and Obs


UlsterCountySnowZ

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Euro From south to north 

 

southern westchester/rockland is the cutoff 

Dusting to 1" southern westchester/NYC

2-4" rockland/westchester

3-6" NNJ

4-6" between rockland and 84

3-6" putnum county (more north you go)

6-8" southern dutchess 

8-10+" NE dutchess 

6-8" Ulster county 

4-6" Sullivan county

 

dont gripe on 1" discrepancies, im eyeballing, but it's pretty accurate 

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35 minutes ago, mikem81 said:

Interesting run for NYC area. .75 QPF with 850 temps at around -4 and 925 temps around -1. If the low deepens enough, I would think we could get some Snow out of this

 

This will accumulate for most N of 78 on the backside . Even Monmouth County and LI are in the game . 

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I see no way after 20Z or so once winds shift in that setup how the coast doesn't go over to snow.  At the same time though it would to probably just be a coating.  The system is moving too fast and isn't vertically stacked which tends to go against any significant snow at the coast, even in a case where you changeover.  I'm thinking the NAM is overdoing the precip in the 57-63 hour period significantly. 

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I think this is a fairly healthy dumping North and West, probably on the order of 2-4 or 3-5" of wet snow. I don't anticipate much if any accumulation East of the NJTPK. The surface is in the lower 40's when precip starts and is just about done by Sunset. Their could be a burst of heavier snow just about everywhere as the mid-level centers organize, but as others have said, it's a quick mover with a poor antecedent air mass.

 

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3 minutes ago, snow1 said:

This threat is dead for us coastal people 

There could be a burst of something more than flurries near the coast for an hour at the end, but I agree this is 2-4" or so for the far north and west suburbs, vast majority rain closer to the city and coast and then the classic developing too late bomb that crushes New England. BOS might do well at the end and get 6" in 2-3 hours. 

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1 minute ago, jm1220 said:

There could be a burst of something more than flurries near the coast for an hour at the end, but I agree this is 2-4" or so for the far north and west suburbs, vast majority rain closer to the city and coast and then the classic developing too late bomb that crushes New England. BOS might do well at the end and get 6" in 2-3 hours. 

Yep. Sne is still in the game and Bos could end with a wet paste. Should be some good radar porn in North Mass to ME Thursday evening 

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4 hours ago, Allsnow said:

Sucks if we had a decent airmass in front of this storm it would be a good snowstorm. A bit of pna spike also. Instead we are left with rain to wet flakes at the end if we're lucky

No cold air and we're relying on the storm to develop on time or a bit early, history says these form a bit N and E of modeling

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7 minutes ago, Allsnow said:

Just  not our year for that type of set up. We have been pretty fortunate to experience NYC top 5 snowstorms in the last 10 years. 

It's annoying to see a pretty decent track and precip amounts and get rain. 

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