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Jan 4-6 Coastal Bomb


Baroclinic Zone

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40 minutes ago, codfishsnowman said:

I hope that includes the storm on your avatar, thats the kind of distribution to make just about everyone happy.

Absolutely. That was a NAM run back when I made the account when I lived in New Jersey. Think it was the last big true miller A before Jan 16'. 

Now I live in Eastie and loving my spot for this one. 

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50 minutes ago, tim123 said:

Notice how models are kicking it east farther up the coast with almost every run. Should be telling. 

Yea I think we’ll eventually lose the “kick” altogether. We’ve lost the warm core look on most guidance through hr 42 or so, but it seems to come back after that point to some degree, resulting in the further east movement (away from the cold air) which is counter to mid latitude cyclone development.

It should be losing the warm core characteristics with latitude, not gaining them.

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I'm working on a blog post/snow map and I almost don't even want to do a snow map right now lol...there's just too many unknowns and the range potential is just too high. There is zero way to really know where the CCB will setup and that doesn't only influence where the jackpot zones are but it also influences who sucks on subsidence for a good amount of time. I'm even uncertain how expansive the precip shield will be...although this point is more due to lack of knowledge. I want to feel like that since this thing is going to be insanely deep that two things will happen; 1) The core of the precip shield is confined closer to the center of the storm and 2) Will precip end up being more bandy...like what happened in Boxing Day in 2009...that too could also introduce areas of subsidence.

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3 minutes ago, jbenedet said:

Yea I think we’ll eventually lose the “kick” altogether. We’ve lost the warm core look on most guidance through hr 42 or so, but it seems to come back after that point to some degree, resulting in the further east movement (away from the cold air) which is counter to mid latitude cyclone development.

Good points....and I still can’t get over the strength of this thing...I have a hard time imagining this will get that strong???  I mean pressures in the 940’s at out latitude...I’m skeptical.

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Shamelessly purloined from Bluewave. Dude's digging up gold.

Uncertainty....

As mentioned above this storm is still 2 days away and the
average model error at this time range is 50-75 miles. Thus
this applies to the axis of heaviest snow and the location of
the rain-snow line. Hence adjustments in later forecasts are
expected. Will models continue to trend westward in later runs?
Given the amplitude of the long wave pattern, system developing
over the Gulf Stream and convection possibly building the
downstream ridge more than models are simulating all suggest an
eastward trend is unlikely with some additional westward
adjustment possible. We`ve been told recon flights will collect
data shortly and this will likely help improve model
performance.


 

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Just now, RUNNAWAYICEBERG said:

That’s doable. it made a big shift at 12z but shat the bed with qpf. eps was west with the trough and better ridging out west than the gefs and yet.....it was east with the srf low and qpf. Makes zero sense to me.

Things still correcting...nothing set in stone anywhere yet.

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