Jump to content
  • Member Statistics

    17,606
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

Feb 12-13 Snowstorm


Snowstorms
 Share

Recommended Posts

There is some variance in the 2m temp progs on Wednesday, with the NAM generally being coldest and the Euro on the warmer end.  If the warmer solution pans out, then it could cause some of the initial snow to get wasted in some areas... this would be less of an issue with northward extent where later onset of late afternoon/early evening is better timed with the start of the nocturnal cooling cycle.

prateptype2_cat_ecmwf.us_mw.thumb.png.99df64612c8ba630cd426b666e117b26.png

sfct.us_mw.thumb.png.01ceea7f1cc3fd40f48c4768a25dcf43.png

 

prateptype_cat_ecmwf.us_mw.thumb.png.bf2d1b397aa43d3343d963bb8d043616.png

sfct2.us_mw.thumb.png.4a47b8e8e6bfa4ee11929e40b0fd769a.png

  • Like 1
Link to comment
Share on other sites

12z Euro = lock it in. :weenie:

Seriously though, if we can get a decent phase, this has the potential to wipe out 2-3 months of misery for many. Getting the pieces to mesh is always tough though, and at this time and juncture, I am going to doubt getting something as clean as the Euro has to offer until we get some more data in. Cautious optimism. 

Link to comment
Share on other sites

1 minute ago, geddyweather said:

12z Euro = lock it in. :weenie:

Seriously though, if we can get a decent phase, this has the potential to wipe out 2-3 months of misery for many. Getting the pieces to mesh is always tough though, and at this time and juncture, I am going to doubt getting something as clean as the Euro has to offer until we get some more data in. Cautious optimism. 

Personally I'd need a lot more than this to "wipe out" all the misery.  Not like we are talking about an 18-24" big dog.

  • Thanks 1
Link to comment
Share on other sites

couple of things i do like, really nice looking jet support over the plains as the trough ejects weds, should be quality divergence and a healthy area of snow and an actually cold air mass associated with the northern stream piece, sim radar products with that textbook baroclinic leaf look

enjoy it now before flatness reigns at 0z

  • Like 5
  • Haha 1
Link to comment
Share on other sites

1 hour ago, A-L-E-K said:

couple of things i do like, really nice looking jet support over the plains as the trough ejects weds, should be quality divergence and a healthy area of snow and an actually cold air mass associated with the northern stream piece, sim radar products with that textbook baroclinic leaf look

enjoy it now before flatness reigns at 0z

related from LOT

 

Quote

The upper pattern for this system is once again a tale of split
flow and how it interacts/phases into the eastern half of the
country. The closed upper low presently over the northern Baja
Peninsula will meander east-northeast into Tuesday before it is
forecast to be "picked up" by a strong northern stream jet trough.
This trough will be an extension of the polar lobe oriented over
Hudson Baby by mid to late week and will have notably cold air
associated with it (850 mb temperatures of -25C into the Upper
Midwest and Upper Great Lakes). The overall jet pattern is
especially noteworthy, with a broad jet maximum of 165-185 kt
across the Great Lakes into Northeast, which is in the top
percentile for this time of year using a 30-year dataset. The
broad right entrance region of this jet is what favors interaction
between the two troughs and likely phasing that has been
consistently forecast.

 

  • Like 1
  • Thanks 1
Link to comment
Share on other sites

DVN isn't impressed: 

The 12Z model suite has shown more phasing than past runs with the
upcoming system. The QPF has shifted north, resulting in models
producing typical advisory levels of snow over the CWA and the
rest of northern IL. However, no model run has really indicated a
closed mid level circulation in this phasing, thus the
precipitation should be mainly driven by WAA and not be long
lasting or heavy in the cold side of the system (not a persistent
def zone). While I am on board with increasing pops to likely for
this event, we may not have a cold boundary layer over our region,
and that could greatly limit any snow accumulation until the
Arctic front arrives Wednesday night, and once again, unless
there`s reason to draw moisture back over the cold air, that
process should shut down the widespread rain/snow. Snow showers
may develop with low level lapse rates peaking in the gusty Arctic
transition.
  • Sad 1
Link to comment
Share on other sites

Duration does look better east of the DVN cwa.  In fact, it looks like it could be snowing here for ~24 hours with little/no breaks.  It is one of the reasons why I am fairly bullish on getting over 4"... in a short duration storm, there is less time to make up ground if you get off to a bad start.  

  • Like 3
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...