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Christmas Storm IV


Cold Rain

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  On 12/23/2010 at 3:52 AM, nchighcountrywx said:

Heard that Eric Thomas with WBTV is calling for 1 inch to 2 inch accumulation down in Charlotte.

Is that even worth discussing? A virtual non-event if his forecast verifies.

Eric was going lock, stock and barrell with the 12z GFS. Even as late as their 7 pm show, I never heard any reference made to the 18Z GFS. I'm sure by the time he goes on air in about 7 or 8 minutes, he'll have a quick look at the 0z run. Eric is good at commenting on the differences if they are significant.

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  On 12/23/2010 at 3:53 AM, phil882 said:

What I see thus far is that the pacific ridge is more amplified, but the shortwave is a little bit further north than the 18z gfs run. I think we will get a slightly earlier phase.

That is exactly what I see as well. Here's hoping the stouter PNA ridge digs this baby on in.

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  On 12/23/2010 at 4:05 AM, UNCCmetgrad said:

GFS looks good until about 60hrs and then the northern stream crushes the southern shortwave. Broad weak surface low forms in southeastern GA as more northern energy dives into the trough.

So its not a speed problem like the nam? Its a problem of the northern stream being too strong again?

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  On 12/23/2010 at 4:04 AM, Itunis said:

GFS looks to warm for ATL-AHN with temps more supportive of snow up in far N GA.

Yep, this run looks like total crap for us. Nam wasn't great either. We are getting within that time range where indeed we are running out of time. I know everyone keeps wanting to downplay these models in favor of the euro but think about this, the nam/gfs have these solutions because in part in as little as 48 hours they are showing more interaction with the northern stream. That's not a hell of a long ways away folks.

There's still time but these 0z runs are a pretty big blow imo because they should have had better data ingestion of our southern disturbance.

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GFS is too broad of a trough, and has another packet of strong energy coming in too late, because the intial low is now scooting across Ga or the coastal Carolinas. Its not a good trend at this stage of the game to see this. But we'll see if the Euro keeps the longwave trough much sharper and deeper, the GFS sure didn't.

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