Jump to content
  • Member Statistics

    17,598
    Total Members
    7,904
    Most Online
    PublicWorks143
    Newest Member
    PublicWorks143
    Joined

New Years Winter Storm


Chicago Storm
 Share

Recommended Posts

Several locations in southeast/southern IA and northern MO AOB 1/2 mile.  Keokuk down to 1/4 mile.  

Model QPF consensus here is generally around 0.4".  Should be able to easily fluff that up to 5"+.  If we can sneak in a little more QPF, and LSR end up north of 14:1 6-7" still on the table.  Def looks like the southern portion of the DVN cwa will get in on the 6-7"+ snows, with model QPF 0.5"+.  LSR may not quite be as high, but should still be well above 10:1.

  • Like 3
Link to comment
Share on other sites

Both NAM and GFS indicate the bleeding seems to have stopped at least.  Maybe wishful thinking, but I have come this far so why not.

Both have also shifted the heavier axis of precip that has been centered around the tri-state area (IA/IL/MO border region) eastward a bit.


.
Link to comment
Share on other sites

Ripping pretty nicely here now, prob about 1/2 mile vis.  Flake size is decent; not pixies, not fatties.  Already adding up fairly quickly.  Several 1/4 mile heavy snow obs upstream, so intensity probably gonna continue to uptick.

EDIT:  Centerville in southern IA the winner at the moment with 1/8 mile vis

  • Like 1
Link to comment
Share on other sites

Ripping pretty nicely here now, prob about 1/2 mile vis.  Flake size is decent; not pixies, not fatties.  Already adding up fairly quickly.  Several 1/4 mile heavy snow obs upstream, so intensity probably gonna continue to uptick.

Given things just recently started, I’m guessing you’ll see an increase in flakes size as time goes on. Was checking some webcams to get an idea of things, and it’s ripping in Galesburg with big flakes, along with many other areas.


.
Link to comment
Share on other sites

16 minutes ago, StormChaser4Life said:

Snowing at a good clip in Peoria but flake size not great. Might limit accumulation potential. Snow overall drier than I expected though. Blowing around. Anyone noticing that massive dry slot developing in MO on radar? Lol. Models don't seem to be grasping that well. 

from ILX:

 BUT THERE  
ARE CONCERNS FOR HIGHER QPF. A NUMBER OF SHORT TERM MODELS HAVE   
BEEFED UP QPF AMOUNTS ACROSS THE ILLINOIS RIVER VALLEY THROUGH THE  
I-55 CORRIDOR THIS AFTERNOON.

  • Thanks 1
Link to comment
Share on other sites

6 minutes ago, DaveNay said:

MO/IA dry slot says "Happy New Year!"

There's still some pretty decent obs down where it looks sort of dry on radar.  Think the radar hole over that area is affecting the way it looks, as much of the precip is emanating from lower in the atmosphere than it was earlier, so the DVN and other radar beams are slightly above the majority of the snow.

  • Like 1
Link to comment
Share on other sites

LOT update. Subtle tip toes backwards:

SOME QUESTIONS REGARDING ANY IMPACTS OF UPSTREAM CONVECTION ON  
POLEWARD MOISTURE TRANSPORT THIS AFTERNOON AND EVENING WITH  
SEVERAL GOOD-SIZED HOLES NOTED IN THE PRECIPITATION SHIELD ACROSS  
NORTHERN MISSOURI. THAT SAID, UPRIGHT CONVECTIVE INSTABILITY IS  
PRESENT ON REGION SOUNDINGS (AND WE CAN SEE THE CONVECTIVE NATURE  
MANIFESTED IN THE RADAR RETURNS), AND HAVE ALSO SEEN SOME DEGREE  
OF THIS FILLING IN OVER THE LAST HOUR OF SO WITH THE ARRIVAL OF  
BETTER JET DYNAMICS. HRRR/RAP COMBO HAVE CERTAINLY TRENDED  
DOWNWARDS A BIT IN THE QPF OUTPUT AWAY
FROM THE LAKE, AND ENVISION  
THERE WILL BE SOME "HOLES" IN THE SNOWFALL TOTALS IN BETWEEN THE  
DOMINANT F-GEN FORCING AND AND ANY LAKE ENHANCEMENT. NO MEANINGFUL  
CHANGES TO THE SNOW TOTALS AT THIS TIME THOUGH, WITH OUR 4-7"  
INLAND
STILL LOOKING OKAY WITH HIGHER AMOUNTS NEAR THE LAKE. WE'LL  
SEE IF ANY DOWNWARD ADJUSTMENTS NEED TO BE MADE TO OUR NORTHERN  
TIER OF COUNTIES AWAY FROM THE LAKE WITH THE FULL PM UPDATE. 

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...