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December Forecast Discussion


Wow

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Throws a bomb out there at 204, and goes right over Charlotte. Of course after the model truncates but verbatim this would hammer WNC, Tn, and a good portion of Ga...Sorry RDU, nothing but a good rain storm on this run.

Edit: Sorry my SC peeps, part of y'all get in on this also.

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  On 12/19/2012 at 4:33 AM, Southern Snow said:

MUCH diff look at 192...wow...lp over sw ga. flooding rains.

EDIT: at 204 the lp over eastern nc!! 977mb low. wnc getting some wintry action...ga getting rocked

by that stage it looks occluded, which means there MIGHT be a chance for cold air to filter in.

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  On 12/19/2012 at 4:40 AM, mackerel_sky said:

Is this storm plausible from this pattern?

I would say so...The main difference w/ this run is the system didn't close off over Tx. Over the years I've never seen a closed ULL in Tx. make it to the east coast. They always go inland. Now I'm not saying that can't happen, I'm just saying I've never seen it since following the models. This run of the gfs didn't close the system off and therefore was able to bring it further east before going negative.

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  On 12/19/2012 at 4:41 AM, Southern Snow said:

Good news for those hoping for more chances after xmas thru new years though. This run was a BIG step in the right direction.

Yeah, that was a fun run. We didn't have a run like that all of last year. I sure did miss it... :santa:

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  On 12/19/2012 at 4:43 AM, rduwx said:

I would say so...The main difference w/ this run is the system didn't close off over Tx. Over the years I've never seen a closed ULL in Tx. make it to the east coast. They always go inland. Now I'm not saying that can't happen, I'm just saying I've never seen it since following the models. This run of the gfs didn't close the system off and therefore was able to bring it further east before going negative.

Agree that's it's rare, but it happened with both 02/26/04 and 03/02/10

http://www.meteo.psu.edu/~fxg1/NARR/2004/us0225.php

http://www.meteo.psu.edu/~fxg1/NARR/2010/us0301.php

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  On 12/19/2012 at 4:36 AM, rduwx said:

Throws a bomb out there at 204, and goes right over Charlotte. Of course after the model truncates but verbatim this would hammer WNC, Tn, and a good portion of Ga...Sorry RDU, nothing but a good rain storm on this run.

Edit: Sorry my SC peeps, part of y'all get in on this also.

Like I always say "It's an honor just to be nominated". :)

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  On 12/19/2012 at 4:36 AM, rduwx said:

Throws a bomb out there at 204, and goes right over Charlotte. Of course after the model truncates but verbatim this would hammer WNC, Tn, and a good portion of Ga...Sorry RDU, nothing but a good rain storm on this run.

Edit: Sorry my SC peeps, part of y'all get in on this also.

Yep. It has the look of one of those storms where it is pushing 60 in Raleigh while Greensboro is around freezing.

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  On 12/19/2012 at 3:13 AM, packbacker said:

Here you go...

summaryCFSv2.NaT2m.201212.gif

Thanks for posting this. I forgot to mention this earlier but the CFS did quite well for December and will hopefully nail the January outlook. Obviously the January outlook means a much different pattern for much of the country.

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  On 12/19/2012 at 5:04 AM, GaffneyPeach said:

Like I always say "It's an honor just to be nominated". :)

Lol, I hope I live long enough to see a string of goofy range bombs verify :) At least it went back positive, instead of getting worse than the last run. I used to think the 0z was the only one that counts, but after reading that all the runs are of equal value as far as input, I realize now it is capable of pulling 18z crazy storms out of the hat too. But some time, the law of averages says, the long range will verify a couple of bombs like this, and I'd love to see it. Maybe two 93's and a 73 Macon bowling ball one right after another. Robert speaks of a string of amazing storms like that in NC, in the 60's or 80's , I think. I remember seeing photo's of snow up to roofs. T

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  On 12/19/2012 at 12:17 AM, HKY_WX said:

The GFS ensembles are interesting similar to the EURO ensembles. Several of those members are certainly icestorm material.

f168.gif

And then i see this ensemble mean and i say to myself, how can that vort in the southwest go anywhere but the tn valley and be forced to redevelop. The blocking scheme just screams miller b to me.

f180.gif

0z meantest8.gif

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Alot of consensus centered around an apps runner scenerio looking at all the ensemble and operational solutions from 0z/6z. I'll hold out hope till this weekend after the front gets by us Friday and the table gets set up to our north. Regradless it should get bone chilling cold all across SE as we close out 2012 and head into 2013.

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