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January 12th-13th event


Orangeburgwx

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48 minutes ago, SnowNiner said:

The -Wow posting index for this storm is way in the negative territory.  Not looking like it's going to be good for the piedmont.  lol.  

I've been reading periodically.  On vacation in a min cabin right now.  I think we'll get something of significance... Still waiting

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RAH

If the 
low levels can be moistened up, onset of precipitation could begin 
as snow, especially across the NW Piedmont with rain or snow 
possible in the Triangle region. Rain is expected across the south. 
Temps mid 30s to mid 40s NW to SE.

On Sunday cyclogenesis will continue along the Carolina Coast with 
the wedge front still in place across the Piedmont. With the 
original surface low weakening and heading to the west of the wedge 
and new coastal low development, the pattern is looking more in line 
with a Miller B and forecast soundings are consistent with that as a 
lot of mixed precipitation is present with wider corridors of P-
Types as opposed to a real tight gradient across the 
climatologically favored NW Piedmont. Forecast soundings also hint 
at losing saturation in the dendritic growth zone and 850 mb temps 
warm up to almost three degrees above zero, further complicating the 
P-Type scenario. Expect a mixed bag of precipitation but for now 
keeping the forecast to rain or snow across the climatologically 
favored areas with rain to the south and east. Mid to upper 30s 
across the NW with mid 40s in the southeast. It should be noted that 
it is entirely too early to speculate on any kind of snow totals 
given the long range time frame, lack of sampling, and P-Type 
details to still be ironed out.
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Euro has a classic sleet/zr sounding for Raleigh . A deep layer of sub freezing temps from sfc to about 900mb. Will be hard to scour this wedge out and wouldn't be surprised to see this wedge continue to trend stronger in the Carolinas.

 

Courtesy of Accuweather...

graphic.aspx?mt=12&hr=120&gs=ecmwfUED_skewt&mod=ecmwfued&map=conus&gv0=C&mv1=35.86&mv2=-78.78&lev=&UID=1546980247725&cap=

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2 minutes ago, griteater said:

That’s cool Hky - is that Euro sounding on a higher end AccuWx package or the regular subscription?

Reg. You can find it at the bottom. The regular subscription is only 20 bucks/month. Worth it over the winter (Dec-Mar). The more I look at this one at 500mb, the more it looks like an old school CAD scenario. Pretty classic 50/50 low setting up. Of course, this is all contingent on the models not being too far off. Confidence will increase once we get into thur/fri.

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My take from the 12z runs is that the models now have a general concensus with the wave handling and have gone a bit away from the weak sheared-out solution.  Question is, how does that concensus trend going forward?  I think this has a better chance now of climbing a little north than it does south as we approach go time

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22 minutes ago, griteater said:

My take from the 12z runs is that the models now have a general concensus with the wave handling and have gone a bit away from the weak sheared-out solution.  Question is, how does that concensus trend going forward?  I think this has a better chance now of climbing a little north than it does south as we approach go time

Maybe our best hope for wintery precip is a miller B with a strong CAD. 

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27 minutes ago, griteater said:

My take from the 12z runs is that the models now have a general concensus with the wave handling and have gone a bit away from the weak sheared-out solution.  Question is, how does that concensus trend going forward?  I think this has a better chance now of climbing a little north than it does south as we approach go time

Don't you put that voodoo on us, grit! Hopefully not too far north with the 50/50 and a 1040+ (?) HP dropping in!

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