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NYC/PHL Dec 26-27 Potential - Part 6


dryslotted

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Interesting looking at the 06Z GFS MOS, it indicates a coastal front setting up near Islip with snow changing to rain over eastern Long Island.

Isnt the heaviest snow usually just west of the coastal front? Looks like a "vertical" rain/snow line which is good for the western part of the south shore to stay all snow.

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interesting to see the 6 Z nam is still holding ground on a further out to sea storm and grazes western NJ on west. Hopefully this is complete garbage.

its actually good to have something slightly out to sea, because everything else is trending so close to the coast, that if it gets any closer we will have mix issues. GFS and MM5 are almost a perfect match right now. RGEM is a big hit also. SREF trended west again. EURO trended west too.

IOW dont worry too much about the NAM-- for now lol

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Isnt the heaviest snow usually just west of the coastal front? Looks like a "vertical" rain/snow line which is good for the western part of the south shore to stay all snow.

In PDII we had a coastal front set up over Long Island.

I honestly don't know what to make of that MOS coastal front.

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Could have been one a year or two thereafter. I don't remember the exact happenings of every single snowstorm the last 25 years like some do on this board.

You mean Andrew? lol. I remember we had a coastal front like 5 miles south of us for Dec 2003. That was when I heard Craig Allen on the radio say that being just to the north or just to the west of the CF enhances snowfall rates considerably.

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qpf is actually more here with the 0z gfs than the 6z gfs, I wonder if the coastal front is present on the 0z gfs mos also?

Anyway, 6z gfs is a widespread 1-1.25" for the area, while the 0z gfs had a nice stripe of 1.50-1.75" qpf for the jersey shore and long island. Not that qpf actually means much this far out lol.

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From Mt. Holly:

I AM NOT COMFORTABLE GOING WITH A WATCH GIVEN THE HISTORY OF EACH

INDIVIDUAL MODEL WITH REGARD TO THIS SYSTEM, AND I WOULDN`T BE

SURPRISED IF THE MODELS REVERSE COURSE AND TAKE ALL THIS PHASING

FURTHER OUT TO SEA. HOWEVER, I AM LESS COMFORTABLE ESCHEWING A

WATCH WITH THE POTENTIAL EVENT STARTING IN THE THIRD PERIOD. LWX

AND AKQ ALSO HAVE ISSUED WATCHES. MISERY LOVES COMPANY.

:whistle:

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From Mt. Holly:

I AM NOT COMFORTABLE GOING WITH A WATCH GIVEN THE HISTORY OF EACH

INDIVIDUAL MODEL WITH REGARD TO THIS SYSTEM, AND I WOULDN`T BE

SURPRISED IF THE MODELS REVERSE COURSE AND TAKE ALL THIS PHASING

FURTHER OUT TO SEA. HOWEVER, I AM LESS COMFORTABLE ESCHEWING A

WATCH WITH THE POTENTIAL EVENT STARTING IN THE THIRD PERIOD. LWX

AND AKQ ALSO HAVE ISSUED WATCHES. MISERY LOVES COMPANY.

:whistle:

Who said that? Tony? Misery? I thought he loves snow :P

BTW Lee Goldberg didnt change his outlook, going for a widespread 6-12" across the area, with 12 inches PLUS for eastern areas.

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Coastal fronts are rare on Long Island...they form with more ease in New England but its possible for sure with the low as close as some guidance indicates.

LG is saying light snow could get here as early as this evening, making for some slick spots on the roads. Sounds like primer for the big storm lo.

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From Mt. Holly:

I AM NOT COMFORTABLE GOING WITH A WATCH GIVEN THE HISTORY OF EACH

INDIVIDUAL MODEL WITH REGARD TO THIS SYSTEM, AND I WOULDN`T BE

SURPRISED IF THE MODELS REVERSE COURSE AND TAKE ALL THIS PHASING

FURTHER OUT TO SEA. HOWEVER, I AM LESS COMFORTABLE ESCHEWING A

WATCH WITH THE POTENTIAL EVENT STARTING IN THE THIRD PERIOD. LWX

AND AKQ ALSO HAVE ISSUED WATCHES. MISERY LOVES COMPANY.

:whistle:

Odd to be afraid of putting a watch out, it can always be dropped, thats clearly stated all the time in the issuance statement but at the same time I do understand where he is coming from. At this point I highly doubt we see any reversal, at least a major one.

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In NYC:

Channel 2 (WCBS) is predicting a general 8-14", with 10"+ on Long Island.

Channel 4 (WNBC) is going with 6-9" in the City, with a foot possible on the Island.

Channel 7 (WABC) says 6-12" in the City eastward, plus 12" possible on Long Island.

Channel 12 (News12 Long Island) hasn't updated their forecast yet.

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