Jump to content
  • Member Statistics

    17,586
    Total Members
    7,904
    Most Online
    LopezElliana
    Newest Member
    LopezElliana
    Joined

Epic winter signal continues to beam


Typhoon Tip

Recommended Posts

  • Replies 1.1k
  • Created
  • Last Reply

The 1000-500 thicknesses never get all that warm either...maybe 546dm to the pike at 102h....and the sfc temps are nasty cold. The euro signaling a ton of cold air to overcome. This is what we kind of saw as a red flag last week too when the sfc was so cold and it was trying to drive the sleet line into CNE with that coastal.

Its a bit of a different setup, but the very general theme isn't too different, we have a high in a decent location and a lot of confluence and gradient to overcome...so there's definitely some room for a colder look. At any rate, its a heck of a battle to watch unfold over the next couple days.

Link to comment
Share on other sites

The 1000-500 thicknesses never get all that warm either...maybe 546dm to the pike at 102h....and the sfc temps are nasty cold. The euro signaling a ton of cold air to overcome. This is what we kind of saw as a red flag last week too when the sfc was so cold and it was trying to drive the sleet line into CNE with that coastal.

Its a bit of a different setup, but the very general theme isn't too different, we have a high in a decent location and a lot of confluence and gradient to overcome...so there's definitely some room for a colder look. At any rate, its a heck of a battle to watch unfold over the next couple days.

I thought about that as well. Look how the 850 temps just came to a halt near the Pike and then creeped north. A lot of arctic air here.

Link to comment
Share on other sites

It's interesting that the warmer air comes in a little quicker on the 12z run, but then slows right at the Pike and creeps to ASH. On 00z, it flew right into Dendrites fanny.

That air mass to the north and confluence isn't just your typical cold airmass....its serious business. When you have -40C 850 temps in Quebec and -20C just N the border, its got some punch.

Link to comment
Share on other sites

Quick statement on the teleconnections:

The well clustered PNA dive of recent CPC computations was suddenly mop-ended last night. That means there is some unrest evolving in the individual GFS members regarding what the PNA index will actually be nearing D10. This puts dent in the confidence for a warmup of Pac origin. This same mop-ended output took place with the previously well-agreed upon NAO - so too enters some uncertainty wrt to the actual phase state of the NAO.

It was mentioned very early in this thread that the polar field indices have upon several occasions modeled to rise ...only to correct toward neutral and/or even negative - perhaps this disconcerted output last night is another correction taking place in the ensembles.

Also, the EPO going negative also puts a monkey-wrench in the warm thinking.... I tell you what - if the EPO is negative and the PNA is closer to neutral (as well as the NAO), then finally we may get a La Nina icer - pure speculation.

Link to comment
Share on other sites

It's interesting that the warmer air comes in a little quicker on the 12z run, but then slows right at the Pike and creeps to ASH. On 00z, it flew right into Dendrites fanny.

Yeah...I'm fine with this run. I'd prefer not to flirt with pingers.

QPF this run was less juicy past 96hr. Hopefully we see it pick up with time.

Link to comment
Share on other sites

That air mass to the north and confluence isn't just your typical cold airmass....its serious business. When you have -40C 850 temps in Quebec and -20C just N the border, its got some punch.

For sure. The whole source region near Maine is frigid too, which I like to see for my locale, before a big storm. It did look like the confluence from hr 54-78 or so was a little better on this run. That's why I posted that the PV was trying with all its might.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...