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December 8-10, 2018 Winter Storm


Orangeburgwx
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7 minutes ago, Poimen said:

Should the RGEM concern us? It's basically a sleet storm for even the Triad. I seem to recall that it has performed well in the past. 

Absolutely. As you know I'm sure, it can always sleet here. We've had mostly IP storms when the models never even hinted at mixing until in the short range.

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Just now, Poimen said:

Without soundings it's hard to know what's going on. Maybe it's an issue with the program indicating sleet when it's actually a snow sounding? I mean it was showing sleet on the maps even over the mountains and we know that's not the case. It still has 8-11" in our neck of the woods. 

Yeah would view as outlier but is a head scratcher

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2 minutes ago, olafminesaw said:

Whoa, it's like 200 miles east of the NAM

Yea for real! And the RGEM and the ICON. Either all 3 of those are smoking something good or the GFS is up to its usual bs ways. FV3 has been behaving more like the first 3 models.

The system slowing down is having huge implications on being able to make somewhat of a northward trek up toward hatteras and that is why the gfs looks so much different imo. I’m thinking ultimate track is CHS to MYR to Hatteras and then east from there when the confluence shuts it down.

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Just now, Poimen said:

FV3 has lowered it's qpf some...but still pretty beefy. I'm guessing this is close 1.5" in the Triad, which is in line with other guidance, except the GFS. 

gfs_namer_048_precip_ptot.gif

@wncsnow @BornAgain13 looks like FV3 made incremental steps toward a wetter solution once again for southern VA. Good area of 1” qpf now showing up. Very good sign.

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1 minute ago, Poimen said:

FV3 has lowered it's qpf some...but still pretty beefy. I'm guessing this is close 1.5" in the Triad, which is in line with other guidance, except the GFS. 

gfs_namer_048_precip_ptot.gif

Very minor differences.. Pretty much on par with the 18z

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Just now, BornAgain13 said:

The GFS just continues to still look different from the others and its much quicker. It comes and goes.

It’s the timing. Exactly what it is. Of course a 200 mile difference is going to affect the surface depiction. Hence why we say bye bye Jan 1.

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