Jump to content
  • Member Statistics

    17,694
    Total Members
    7,904
    Most Online
    Scinestro
    Newest Member
    Scinestro
    Joined

December 16-17, 2020 Winter Storm Obs/Nowcasting


WxUSAF
 Share

Recommended Posts

9 minutes ago, CAPE said:

WRT to this event, even though there is ridging up over GL, its not what I would consider an "effective" block for this area. If it were, the 50-50 low wouldn't be hauling ass up into the NA. So in this case we really needed to thread the needle- to time everything perfectly, because that low and the associated confluence (and surface HP) are on the move. We really aren't getting the necessary compressed flow/suppression, which would have inhibited height rises out in front and forced the low track further south.

We’ve had snow events work with less.  You’re 100% that the look up top isn’t the stone cold killer perfect analog look. But it’s a good enough look to make a snowstorm realistic but we would need some help.  The perfect look up top makes it where more factors can go wrong and still work. This setup we needed more to go our way.  Not enough did. Even with the 50/50 vacating had that rogue SW not dug the trough west of us we probably got a decent snow event. But a few things went wrong and it’s Dec and the block wasn’t perfect enough to offset. But I would take this look all winter and roll the dice!  Might not get a hecs but we would probably get a couple warning events with enough chances with a similar pattern imo.  

Link to comment
Share on other sites

11 minutes ago, ErinInTheSky said:

I'm hugging HRRR. HRRR is best model. I'm breaking up with the Euro.

 

Seriously though, yummu.

 

c281OL3.png

 

WB HRRR.

Usual caveat that these maps are misleading, but for me, my totals usually are much closer to these than the "Snow depth" maps as I tend to bust high in my microclimate in Germantown.

 

Peep HoCo. Just as I alluded to earlier. Models keep showing this secondary jackpot JUST west of the rain/snow line where QPF jacks in that crazy meso  band. Not sure this has any chance to pan out, but it intrigues me that hi res (hrrr 12k nam) keep showing this.  

Link to comment
Share on other sites

2 minutes ago, psuhoffman said:

We’ve had snow events work with less.  You’re 100% that the look up top isn’t the stone cold killer perfect analog look. But it’s a good enough look to make a snowstorm realistic but we would need some help.  The perfect look up top makes it where more factors can go wrong and still work. This setup we needed more to go our way.  Not enough did. Even with the 50/50 vacating had that rogue SW not dug the trough west of us we probably got a decent snow event. But a few things went wrong and it’s Dec and the block wasn’t perfect enough to offset. But I would take this look all winter and roll the dice!  Might not get a hecs but we would probably get a couple warning events with enough chances with a similar pattern imo.  

No doubt the fact that its mid Dec, warm ocean temps etc are major factors. For the lowlands esp we need a damn near perfect h5 setup, or at least some anomalous cold. This setup would likely  have a different outcome if this were a legit Arctic air mass. But yeah I would take my chances even over here with this same general setup in another month. I agree the looks we are seeing on the means are good enough to keep the MA in the game moving forward, assuming they are correct. Also seeing hints of an EPO ridge popping again. We will see how that works out.

Link to comment
Share on other sites

1 minute ago, clskinsfan said:

Better track this time on the NAM. Low is better organized and tracks mouth of bay to off OC it appears. I am on shitty maps so dont kill me if I am wrong. 

Maybe just slightly better track. But makes no difference . Thermals are still shot out this way. You’re ok but prob pouring mix at some point

Link to comment
Share on other sites

Just now, PivotPoint said:

Maybe just slightly better track. But makes no difference . Thermals are still shot out this way. You’re ok but prob pouring mix at some point

Fully expecting a sleet bomb here in central carroll county before the storm makes its move NE. Some of our best storms have had sleet however. 

  • Weenie 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...