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Wintry Dec 8-10th Winter Storm

As I was saying earlier about how typically colder deeper air filters in on the north, northwestern and west flank of winter system's, both GEFS and EPS have the 850mb temps crashing. During the transition from the wedge to deeper colder air, p. type may change and and propably differ at various locations. After the low is off to the east of the southeastern US most precip will be all snow.
c902789c312dbeff4ee638f1cba9b5b2.gif
186a1c87686324a6ce329b155c03ac5b.gif
 
AFD from NWS Raleigh:

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
As of 330 PM Monday...

We`re still looking at the potential for a significant storm across
the Southeast this weekend that is increasingly likely to produce at
least some wintry precip over central NC. But wide temporal,
spatial, and intensity variations persist among model solutions
(including ensemble members), leaving us in a wait-and-see mode for
at least another day or two.

Sat-Mon: A strengthening mid-upper trough/low will cross the S
Plains, Gulf States, and Southeast during this period. Models are
fairly uniform in showing some polar stream interaction such that
the system should slow and deepen as it crosses the Southeast. This
will allow for cyclogenesis over the NW Gulf (where so many of our
wintertime storms are born) and foster further intensification as it
crosses the Gulf Coast / N FL and off the Southeast coast by Sun
night or Mon. The ECMWF remains significantly slower than the GFS
(by 6-12 hrs) and takes a farther-north path, such that it is
generally a bit warmer but with greater QPF as its slower movement
allows for greater deepening near the coast with a long-lived
deformation back extending well inland through Mon. While confidence
is rising that we`ll get a decent precip event and that a single
dominant low is the most likely pattern of cyclogenesis, there is
still too much model spread for much specificity. This model spread
is not surprising considering the mid level feature in question is
still currently well out over the Pacific. Will maintain high chance
to likely pops, higher across the S and SE, starting early Sat but
peaking Sun. Climatology for immature (still-developing) Miller A
patterns supports broad corridors of mixed precip type, and the
deterministic forecast will indicate this. It`s far too early to
speculate about amounts of wintry precip, but we could be looking at
a few inches of liquid (or liquid equivalent) before all is said and
done. Highs each day will generally range from the upper 30s to mid
40s NW to SE, with nightly lows in the 30s. -GIH
 
As I was saying earlier about how typically colder deeper air filters in on the north, northwestern and west flank of winter system's, both GEFS and EPS have the 850mb temps crashing. During the transition from the wedge to deeper colder air, p. type may change and and propably differ at various locations. After the low is off to the east of the southeastern US most precip will be all snow.
c902789c312dbeff4ee638f1cba9b5b2.gif
186a1c87686324a6ce329b155c03ac5b.gif
Sorry, I forgot to add the further frames on that GIF on the EPS.
e7aee05f769b1c4384cd237651e78464.gif
 
So noaa has the triangle area in a heavy rain zone, youve got to go west of the triad to get in the snow zone. In other words, noaa sees this as a foothills threat westward.
 
I know it’s a little early too look at temps on nam VS other models but I took a peek at it.
43413FA8-B0AD-4CBE-85EA-26E294A5F4DE.gif

While this is a relatively small difference and it’s still nearly 2 days before the storm hits it’s not a bad thing to see the NAM be a little colder.

Also here is the FV3 vs NAM for the overall setup. It may be a touch stronger with HP and faster with our storm?

12E88112-A7E6-435E-BEB7-A4E99E287E6A.gif

This is the 84hr nam. Take it for what it is.
 

Brad Panovich video from Major Feb 2014 Winter Storm
. This was still 3 to 4 days out and models such as EURO was to warm and GFS won.
 
I know it’s a little early too look at temps on nam VS other models but I took a peek at it.
View attachment 8137

While this is a relatively small difference and it’s still nearly 2 days before the storm hits it’s not a bad thing to see the NAM be a little colder.

Also here is the FV3 vs NAM for the overall setup. It may be a touch stronger with HP and faster with our storm?

View attachment 8138

This is the 84hr nam. Take it for what it is.
Nice observations!
 
Mention Feb 14 in this thread again and delete.... seriously, please use banter as Storm requested. I've been outside doing some yard work came in to catch up and had to weed through that stuff, this is what peeps don't like. Thanks!
 
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