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NYC/PHL 12/21-12/27 Forecast Threats


am19psu

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mother of god...

but, the Euro is depicting the perfect solution 6-7 days out. Unfortunately it is highly likely we are going downhill from here, lol.

Yeah remember the Euro buried us just a couple days before today's storm that missed. Yeah this is a better setup, but considering it's 5+ days out it would be foolish to get excited. We know the model solutions will change many times during the week. No use going nuts over particular runs this early.

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mother of god...

but, the Euro is depicting the perfect solution 6-7 days out. Unfortunately it is highly likely we are going downhill from here, lol.

Maybe not this time; the consensus is that we get something at least, so good start. Not overly excited about great runs or down about bad runs yet.

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the relative lack of QPF is extremely bothersome....

It really shouldn't be..it's 0.75 and it still snows after that..so it's probably like 0.8 or 0.9 for most areas. The CCB is extremely well developed and would likely yield more QPF given the synoptic setup.

The QPF shouldn't be bothersome at 150 hrs...what should be bothersome is the fact that this solution isn't a 48 hr forecast :snowman:

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the relative lack of QPF is extremely bothersome....

on a side note- this La Nina winter is surely looking more like a 95-96 type deal than a strong one....no?

pretty sure you can at least double that QPF with a 979 mb surface low vertically stacked off the NJ coast under a deep 5H low

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It really shouldn't be..it's 0.75 and it still snows after that..so it's probably like 0.8 or 0.9 for most areas. The CCB is extremely well developed and would likely yield more QPF given the synoptic setup.

The QPF shouldn't be bothersome at 150 hrs...what should be bothersome is the fact that this solution isn't a 48 hr forecast :snowman:

Yeah, I would think with such a 979mb off Li, would yield higher QPF totals, but it doesn't matter.

The Track is absolutely stunning, what beautiful upper air picture.

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As always, no need to focus on QPF for a 7-day forecast. Just seeing this run of the ECMWF also backed up by the GGEM is highly encouraging. A lot will depend on when the northern stream interacts and begins the phase. The GFS at 00z showed less interaction which allowed the storm to escape east enough before bombing out. The slower the progression, the better the chance of a major storm. Keep watching those trends and hopefully the models hone in on a solution over the next few days. Snowman.gif

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It really shouldn't be..it's 0.75 and it still snows after that..so it's probably like 0.8 or 0.9 for most areas. The CCB is extremely well developed and would likely yield more QPF given the synoptic setup.

The QPF shouldn't be bothersome at 150 hrs...what should be bothersome is the fact that this solution isn't a 48 hr forecast :snowman:

Totally agree, lets get this thing inside 100 hrs...but hopefully models stay consistent for now

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Don't worry about that, the X-Mas 2002 storm was closer than that at 976mb and the entire region was all snow....a system like that makes its own cold air.

it rained for the first 12 hours of that storm...the we had like 6-8 hours of heavy wet snow

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Don't worry about that, the X-Mas 2002 storm was closer than that at 976mb and the entire region was all snow....a system like that makes its own cold air.

sorry, here's a noob question...: :lol:

what do you mean by making its own cold air...??:) i'm from Central LI and i'm a little bit worried about mixing...:lol:

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that is very jan 1996...maybe a smaller precip shield...but the upper levels look similar....not exact, but there are similarities

Here's the 156 hour CMC...very impressive solution, the Euro was a bit further west with more QPF/dynamics

f156.gif

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