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Holiday week storm(s) discussion


earthlight

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We've had low expectations all along. But what has to happen exactly to make this storm work out for us?

Which is still quite possible 5 days out no??

Anything is possible, but this was a long shot. It was a brief window of opportunity. I never wanted anything substantial on the 25th because of the retreating HP. If this was a small event that bombed out later, we would have had the last piece of energy to come through with a good baroclynic zone and better cold air moving in. The euro hasn't shown that scenario yet.

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actually, looking at the surface temps, the area stays quite cold just to the west of the city, throughout most of Northern NJ. It looks like temps will be in the lower to middle 30's the entire time. It may not be over yet at all. Looking at the surface be that cold is actually not what I expected to see, given that the 850's get that warm. There is hope.

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there would be an hour or two in the beginning for everyone I think. Probably between 6 and 10am on the 25th.

Surface temps are in the mid 30's for the start and rise into the upper 30's with every other level fine.

This run actually has a couple hours of a front end thump.

Especially for PA and NJ and even for NYC and west.

From Christmas noonish to about 5pmish.

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Surface temps are in the mid 30's for the start and rise into the upper 30's with every other level fine.

This run actually has a couple hours of a front end thump.

Especially for PA and NJ and even for NYC and west.

From Christmas noonish to about 5pmish.

Which is what HM was referring to earlier as well.

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Surface temps are in the mid 30's for the start and rise into the upper 30's with every other level fine.

This run actually has a couple hours of a front end thump.

Especially for PA and NJ and even for NYC and west.

From Christmas noonish to about 3pmish.

earlier I think.

Anyway, it is possible the euro should have ejected this as a smaller piece vort while the main show comes down the back side after the 25th which would preserve a chance to have something more frozen, but the euro is really honing in on this solution now, so I doubt it at this point.

Of course all these vorts are in the middle of nowwhere and you have energy ejecting from the SW conus which mucks everything up so the flat gfs could be just as right as the euro right now.

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though the GFS and Euro deviate in the short term.. I think the two strong anomolies which are showing up are the huge PVs over Alaska and Greenland, so after the Christmas time, unfortunately both models are looking very benign in that later time period... 2 huge anomolies working against us will be very hard to overcome probably.. and being that the anomolies are being forecasted so strong this far out, there might be a possibility that this solution, more or less, comes to fruition.

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earlier I think.

Anyway, it is possible the euro should have ejected this as a smaller piece vort while the main show comes down the back side after the 25th which would preserve a chance to have something more frozen, but the euro is really honing in on this solution now, so I doubt it at this point.

Of course all these vorts are in the middle of nowwhere and you have energy ejecting from the SW conus which mucks everything up so the flat gfs could be just as right as the euro right now.

Would prefer this storm to speed up a little more and provide us with more front end.

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+AO and +NAO be killin it!! Such a Shane too with so much activity in the southern jet. We coulda pulled something out with somewhat of a neutral tele set up. The tidying tries it's hardest on this.

But like people were saying, can't count out a little front end thump.

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has it as a 988mb over Nova Scotia at 144 hrs. This is pretty much what the UKMET showed, bombing this thing into the 980's also. Based on this, the chances of the GFS being correct are about ZERO

This is the perfect type of storm where we used to take bets at work as to what run the GFS would pick it up again.

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+AO and +NAO be killin it!! Such a Shane too with so much activity in the southern jet. We coulda pulled something out with somewhat of a neutral tele set up. The tidying tries it's hardest on this.

But like people were saying, can't count out a little front end thump.

you would get 1-3 from the front on this if it happened as modeled, but man or man that warm push is coming in fast.

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The warm air is moving in quick aloft, but based on the surface temps not really warming up much to the NW of the storm I just wonder how much of that precip falls before the 850's warm up above freezing? It is not clear-cut. We have 6 hour intervals to work with and in the one interval we have temps in the lower to middle 30's and 850's below, then we have temps in the middle to upper 30's and temps above at the 850 level, but how much of the precip fell before the upper level warmed up? These types of situations will make you crazy. Anything is possible, but it really is a close call for areas NW of the city.

you would get 1-3 from the front on this if it happened as modeled, but man or man that warm push is coming in fast.

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The warm air is moving in quick aloft, but based on the surface temps not really warming up much to the NW of the storm I just wonder how much of that precip falls before the 850's warm up above freezing? It is not clear-cut. We have 6 hour intervals to work with and in the one interval we have temps in the lower to middle 30's and 850's below, then we have temps in the middle to upper 30's and temps above at the 850 level, but how much of the precip fell before the upper level warmed up? These types of situations will make you crazy. Anything is possible, but it really is a close call for areas NW of the city.

there is more to it than 850 and surface

i can tell there is probably a nasty 800 level or maybe 700 level warm wedge in there. Don't even need the sounding, it fits the setup

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true. Possibly some sleet or freezing rain in the colder locations. I really can't believe how much is does not warm up the surface temps, all things considered. I know in my area, honestly, it tends to be several degrees too warm with surface temps in situations such as this.

there is more to it than 850 and surface

i can tell there is probably a nasty 800 level or maybe 700 level warm wedge in there. Don't even need the sounding, it fits the setup

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