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March 13-14th Nor'easter Threat


NJwx85
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NAM went from this output of yesterday AM

1678622400-aAoPQEA3GPk.png

To this:    25" to 2.5"            Gives a new meaning to  the 10:1 Ratio!     Hee Hee Hee!

Oh yes.........The FDIC just announced it would buy the NAM  Software/Hardware for 1"--------I mean $1.00 and throw it in the Potomac.

1678687200-GIOtlDa0iiY.png

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The HRRR has maybe a few hours of mostly white rain tomorrow afternoon as the low occludes over New England. Some areas might pick up 1-2" but temps are in the mid 30's on the coastal plain and precip is light and falling during the day. Any accumulations would be on grassy and untreated surfaces.

snku_acc-imp.us_ne.png

 

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The HRRR has maybe a few hours of mostly white rain tomorrow afternoon as the low occludes over New England. Some areas might pick up 1-2" but temps are in the mid 30's on the coastal plain and precip is light and falling during the day. Any accumulations would be on grassy and untreated surfaces.
snku_acc-imp.us_ne.png
 

The RGEM was hinting at a similar scenario. This one may be DOA. And yea, March, 2001 vibes big time with this one…..
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2 minutes ago, NJwx85 said:

The HRRR has maybe a few hours of mostly white rain tomorrow afternoon as the low occludes over New England. Some areas might pick up 1-2" but temps are in the mid 30's on the coastal plain and precip is light and falling during the day. Any accumulations would be on grassy and untreated surfaces.

snku_acc-imp.us_ne.png

 

Timing is another thing that has burned us with this storm. Going to be hard to accumulate in the mid-30s in the middle of the day, especially in the City and south.

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1 minute ago, snowman19 said:


The RGEM was hinting at a similar scenario. This one may be DOA. And yea, March, 2001 vibes big time with this one…..

Not really. 3/5/01 was a much bigger head fake all the way down to DC. To be honest despite the wild fluctuations in low position, etc, if people were paying attention to the evolution of the storm/pattern it was clear where this one was favored for a few days now. There are some on the margins like Boston that might still get crushed if the CCB blossoms and pivots over them but the Catskills to the Albany area to the Berkshires/Worcester Hills have been ground zero since Thu-Fri. 

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Just now, jm1220 said:

Not really. 3/5/01 was a much bigger head fake all the way down to DC. To be honest despite the wild fluctuations in low position, etc, if people were paying attention to the evolution of the storm/pattern it was clear where this one was favored for a few days now. There are some on the margins like Boston that might still get crushed if the CCB blossoms and pivots over them but the Catskills to the Albany area to the Berkshires/Worcester Hills have been ground zero since Thu-Fri. 

We were relying on the mesolow for snow down here.

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4 minutes ago, jm1220 said:

Not really. 3/5/01 was a much bigger head fake all the way down to DC. To be honest despite the wild fluctuations in low position, etc, if people were paying attention to the evolution of the storm/pattern it was clear where this one was favored for a few days now. There are some on the margins like Boston that might still get crushed if the CCB blossoms and pivots over them but the Catskills to the Albany area to the Berkshires/Worcester Hills have been ground zero since Thu-Fri. 

It was a bigger head fake because the model skill wasn't as good as it is now. It's very similar in that we got burned by a late developing storm.

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24 minutes ago, jm1220 said:

Not really. 3/5/01 was a much bigger head fake all the way down to DC. To be honest despite the wild fluctuations in low position, etc, if people were paying attention to the evolution of the storm/pattern it was clear where this one was favored for a few days now. There are some on the margins like Boston that might still get crushed if the CCB blossoms and pivots over them but the Catskills to the Albany area to the Berkshires/Worcester Hills have been ground zero since Thu-Fri. 

The HV is sorta getting maybe a last minute shaft they looked good for a while with this. NYC never looked good. 

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4 minutes ago, wishcast_hater said:

If the model skill is better than why all the flip flopping?

Because it was still a very complex evolution that wasn't easy to resolve.

The airmass which wasn't that cold to begin with is stale. You're missing a fresh injection of cold air. 

Besides the general lack of cold air, you have two other major problems.

First, the closed upper level low tracks overhead which is always the kiss of death. You need to be just North of the track of the ULL or you dry slot. 

Secondly, the NAM and at times the Euro were way too strong with the energy involving the ULL itself. The Euro was closing it off much sooner, which would have led to a quicker development of the surface low and overall a stronger system.

Kudos to the GFS which has had this solution since last week.

 

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6 minutes ago, NJwx85 said:

Because it was still a very complex evolution that wasn't easy to resolve.

The airmass which wasn't that cold to begin with is stale. You're missing a fresh injection of cold air. 

Besides the general lack of cold air, you have two other major problems.

First, the closed upper level low tracks overhead which is always the kiss of death. You need to be just North of the track of the ULL or you dry slot. 

Secondly, the NAM and at times the Euro were way too strong with the energy involving the ULL itself. The Euro was closing it off much sooner, which would have led to a quicker development of the surface low and overall a stronger system.

Kudos to the GFS which has had this solution since last week.

 

 

The GFS was not exactly good either, it was sending this to Bermuda...it was more correct for the wrong reason

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2 minutes ago, jm1220 said:

I don’t see anyone here who was shocked. Pissed/disappointed sure. 

I saw a lot of people jumping on the NAM bandwagon yesterday that were acting like a kid on Christmas morning.

When the NAM in particular is all on its own it shouldn't even be discussed.

To me it falls under the same category as the Weather channel naming winter storms.

It's embarrassing. 

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12 minutes ago, Winterweatherlover said:

The HV is sorta getting maybe a last minute shaft they looked good for a while with this. NYC never looked good. 

Sure, people on the margins like the LHV can go either way. Lack of elevation/shadowing will hurt some. Down here was never on the margins. We were slightly more likely than a Hail Mary. 

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39 minutes ago, snowman19 said:


The RGEM was hinting at a similar scenario. This one may be DOA. And yea, March, 2001 vibes big time with this one…..

No, not at all. The major media outlets at no time talked about anything but rain and some light snow here; in 2001 there were days of school closures and many graphics of 1-2 feet of snow all over tv from Philly north; one guy had to get out of Dodge ( Philly ) after that. There was also steady light sleet during the buildup to what never came. This has been nothing big here at all so far and was never thought to be by those who actually practice weather forecasting for a vocation. 

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